There are 1.204 × 10²⁴ atoms in 24 grams of carbon.
How to calculate number of atoms?The number of atoms present in a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number as follows;
no of atoms = no of moles × 6.02 × 10²³
According to this question, there are 24 grams of carbon atom. The number of moles in this carbon is as follows:
no of moles = 24g ÷ 12g/mol = 2mol
no of atoms = 2 × 6.02 × 10²³
no of atoms = 1.204 × 10²⁴ atoms.
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Balance the equation
The balanced reaction equations are;
Na3PO4 + 3HCl → 3NaCl + H3PO4
2Al + 6HCl ----> 2AlCl3 + 3H2
2 FeC2O4 + 2 CO2---> Fe2(C2O4)3
TiCl4 + H2O → Ti(OH)4 + 4HCl
B2Br6 + 6HNO3 → 2B(NO3)3 + 6HBr
How do you balance the reaction equation?A chemical reaction equation must have an equal number of atoms for each element on both sides in order to be balanced.
Determine the total number of atoms in the reactants and products for each element. To balance the equation, pick a coefficient. This would be placed at the beginning of the chemical formula.
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Give the structures of the free‑radical intermediates in the peroxide‑initiated reaction of HBr
with the following alkene. Include all lone‑pair electrons and unpaired electrons. Hint: the radicals do not coexist in the same mechanistic step.
The peroxide addition would yield a product that is different from the antiperoxide addition
What is the structure?Markovnikov's rule states that when a protic acid HX is added to an alkene, the acid hydrogen (H) forms a bond with the carbon atom that has the greatest number of hydrogen atoms, while the halide (X) group forms a bond with the carbon atom that has the fewest hydrogen atoms.
This can be summed up with the phrases "the rich get richer" and "the poor get poorer" in terms of hydrogen. This fundamental principle of alkene chemistry aids in predicting the results of addition reactions.
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Which experiment below is most likely to be part of a good demonstration of thermal equilibrium?
A. Bringing together two objects with different flammability levels.
B. Bringing together two objects with different densities.
C. Bringing together two objects with different opulence.
D. Bringing together two objects with different temperatures.
The experiment that will most likely be part of a good demonstration of thermal equilibrium is: D. Bringing together two objects with different temperatures.
Which will be a good example?Thermal equilibrium is a condition in which the temperature levels of two fluids or substances attain the same temperature. Let us say that a cup of ice-cold water is brought from the freezer to a warm environment.
Thermal equilibrium will be attained when there will be a transfer between the temperature condition of the cup of water and the environment. So, option D is a good example.
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What is the molarityof a 150ml of solution containing 5g of copper (1) chlorate
The molarity of 150 mL solution containing 5g of copper (1) chlorate is 0.0051 M
How do i determine the molarity of the solution?We'll begin by obtaining the number of mole in 5 g of copper (i) chlorate. This is shown below:
Mass of copper (i) chlorate = 5 grams Molar mass of iodine = 147 g/molMole of copper (i) chlorate = ?Mole = mass / molar mass
Mole of copper (i) chlorate = 5 / 147
Mole of copper (i) chlorate = 0.034 mole
Now, we shall determine the molarity of the solution. Details below:
Mole of copper (i) chlorate = 0.034 moleVolume of solution = 150 mL = 150 / 1000 = 0.15 LMolarity of solution = ?Molarity of solution = mole / volume
Molarity of solution = 0.034 / 0.15
Molarity of solution = 0.0051 M
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Part 1(Picture 1):
Peptides isolated from rapeseed that may lower blood pressure have the following sequence of amino acids.
Part A
At physiological pH the N-terminus of an amino acid exists as the ammonium ion, and the C-terminus exists as the carboxylation ion.
Draw the structure of Arg-Ile-Tyr.
Draw the molecule on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars, including charges where needed.
Part 2(Picture 2):
Part A
What are the amino acids in the peptide?
Spell out the full names of the compounds. Enter your answers separated by a comma.
Part B
How would you name the dipeptide in the peptide?
Spell out the full name of the compound.
The structure of Arg-Ile-Tyr is given below:
What are Peptides?Peptides make up short chains of amino acids, which act as the fundamental units for building proteins. Within these chains, peptides usually consist of no more than 50 amino acids in contrast to proteins that are made up of significantly longer structures.
Found throughout various sources such as plants, animals, and bacteria, peptides play crucial roles in multiple biological processes including signaling, enzyme activity, and immune response.
Additionally, artificially synthesized peptides serve several purposes within the medicine, cosmetics, and food industries. Scientists are also exploring certain peptide's potential therapeutic advantages mainly pertaining to anti-inflammatory, antimicrobial, and anticancer activities.
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please provide explanation!! thank you in advance!!
If a mixture of gases reaches equilibrium with 0.0113M of H² and CO², the equilibrium concentration of the product is 0.0113 M. Hence, option A is correct.
The equilibrium constant, Keq, is given as:
[tex]\rm K_{eq} = \dfrac{[CO][H_2O]}{ [H_2][CO_2]} \\ \\[/tex]
= 0.16
At equilibrium, let the concentrations of CO, H₂O, and H₂, CO₂ be [CO], [H₂O], [H₂], and [CO₂].
Initial concentration of H₂ and CO₂ = 0.0113
Change in concentration = +X and -X
At equilibrium, for CO = 0-X, H₂O = X,H₂O = 0.0113-X and CO₂=0.0113-X
x² = 0.001207
x = 0.0348 M
Therefore, the equilibrium concentrations of the products are:
[CO] = 0 - x = -0.0348 M
[H₂O] = x = 0.0348 M
[H₂] = 0.0113 - x = 0.0113 - 0.0348 = 0.0225 M
[CO₂] = 0.0113 - x = 0.0113 - 0.0348 = 0.0225 M
Since [CO] is negative, we can conclude that the equilibrium lies to the left, indicating that the reactants are favored over the products.
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A 0.17−kg baseball thrown at 100 mph has a momentum of 7.7 kg · m/s. If the uncertainty in measuring the mass is 1.0 × 10−7 of the mass, calculate the uncertainty in the baseball's position.
The uncertainty in the baseball's position is approximately 6.97 × 10⁻³⁶ m.
Using the uncertainty principle, ∆x∆p ≥ h/4π, we can solve for the uncertainty in position:
∆x ≥ h/4π∆p
First, we need to convert the velocity from mph to m/s:
100 mph = 44.7 m/s
Next, we need to convert the momentum from kg · m/s to kg · m/s²:
7.7 kg · m/s = 7.7 N · s
Now we can solve for the uncertainty in position:
∆x ≥ h/4π∆p = (6.626 × 10⁻³⁴ J · s)/(4π × 7.7 N · s)
= 6.97 × 10⁻³⁶ m
As a result, the uncertainty in baseball's location is around 6.97 × 10⁻³⁶ m. This value is incredibly small and practically impossible to measure, indicating that the uncertainty in measuring the mass has no significant effect on the uncertainty in position.
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Thermodynamic properties of ethanol, how much heat is released when 60g of ethanol cools from 70C to 43C
The negative sign indicates that heat is being released from the ethanol as it cools down. So, 3,950.4 joules of heat are released when 60g of ethanol cools from 70°C to 43°C.
To calculate heat released when 60g of ethanol cools from 70°C to 43°C, we can use the following equation:
Q = m × c × ΔT
First, we need to calculate the change in temperature:
ΔT = final temperature - initial temperature
ΔT = 43°C - 70°C
ΔT = -27°C
Note that the change in temperature is negative because the ethanol is cooling down.
Next, we can calculate the heat released:
Q = m × c × ΔT
Q = 60g × 2.44 J/g°C × (-27°C)
Q = -3,950.4 J
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A covalent compound is broken down into its individual elements. The amount of energy required to break the bonds is 1254 kJ, and the energy produced as a result of breaking the bonds is 1001 kJ. What type of reaction has most likely occurred?
a. combustible reaction
b. spontaneous reaction
c. endothermic reaction
d. exothermic reaction
Answer: c. endothermic reaction.
Explanation: In an endothermic reaction, energy is absorbed or required to break the bonds in the reactants. This means that more energy is required to break the bonds than is released by the formation of new bonds in the products, resulting in a net absorption of energy. In this case, the amount of energy required to break the bonds (1254 kJ) is higher than the energy produced by breaking the bonds (1001 kJ), indicating that the reaction requires an input of energy and is therefore endothermic.
Answer:
c. endothermic reaction
Explanation:
The given information states that the amount of energy required to break the bonds of the covalent compound is 1254 kJ, and the energy produced as a result of breaking the bonds is 1001 kJ.
In an endothermic reaction, the energy required to break the bonds is greater than the energy released or produced. This means that more energy is absorbed from the surroundings than is released during the reaction. In this case, since the energy required to break the bonds (1254 kJ) is greater than the energy produced (1001 kJ), it indicates that the reaction requires an input of energy from the surroundings, making it an endothermic reaction.
Option c, "endothermic reaction," is the correct answer based on the given information.
Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wood?
When a 200°C iron bar is placed in thermal contact with a 30°C block of wood, energy leaves the iron bar and enters the wood until the temperatures are equal.
Law of conservation of energy states that the energy cannot be lost or formed but it can only be transformed from one form to another.
According to the given question, the block of wood is at a lower temperature than an iron bar. Hence, heat will flow from the iron bar to the block of wood until the temperatures of both are equal.
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Question 2 (1 point)
Which is true for water?
It is a compound
It is an element
It is a chemical reaction
It is a metal
Answer: A.) It is a compound
Explanation:
Water is an inorganic compound made of water molecules, which are made of oxygen and hydrogen atoms.
It is not an element because there is no such thing as a water atom.
Water is not a chemical reaction to anything.
Water is OBVIOUSLY not a metal.
Hope this helps :)
Use the bond energies given below to calculate the enthalpy change for the reaction, HCN(g) + 2 H₂(g) → CH3NH₂(g)
Bond Bond Energy (kJ/mol) Bond Bond Energy (kJ/mol)
H-H
432
C-H
413
C-N
305
615
CEN
891
391
O-158 kJ
+18 kJ
-590 kJ
+158 kJ
+133 kJ
C=N
N-H
The enthalpy change for the given reaction is 1344 kJ/mol.
First, we need to write the balanced chemical equation for the given reaction:
HCN(g) + 2 H2(g) → CH3NH2(g)
To calculate the enthalpy change (ΔH) for this reaction, we need to subtract the total energy of the reactants from the total energy of the products. We can do this by calculating the energy required to break the bonds in the reactants and the energy released when new bonds are formed in the products.
Reactants:
HCN(g): 1 C-N bond (305 kJ/mol) + 1 C-H bond (413 kJ/mol) + 1 N-H bond (391 kJ/mol) = 1109 kJ/mol
2 H2(g): 4 H-H bonds (4 x 432 kJ/mol) = 1728 kJ/mol
Total energy of reactants: 1109 kJ/mol + 1728 kJ/mol = 2837 kJ/mol
Products:
CH3NH2(g): 1 C-H bond (413 kJ/mol) + 3 C-N bonds (3 x 305 kJ/mol) + 7 H-H bonds (7 x 432 kJ/mol) = 4181 kJ/mol
Total energy of products: 4181 kJ/mol
ΔH = (total energy of products) - (total energy of reactants)
ΔH = 4181 kJ/mol - 2837 kJ/mol
ΔH = 1344 kJ/mol
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How many grams of magnesium sulfate would be produced from the following reaction if
176 kJ of energy is absorbed by the reaction.
Alz (S04)3 + 3 Mgl-> 2 All+ 3Mg(SO4) deltaH = +722 kJ
The mass (in grams) of magnesium sulfate, MgSO₄ that would be produced from the reaction is 87.76 g
How do i determine the mass of magnesium sulfate, MgSO₄ produced?The mass of magnesium sulfate, MgSO₄ produced can be obtain as illustrated below:
Al₂(SO₄)₃ + 3Mg -> 2Al + 3MgSO₄ ΔH = +722 KJ
Molar mass of MgSO₄ = 120 g/molMass of MgSO₄ from the balanced equation = 3 × 120 = 360 gFrom the balanced equation above,
When 722 KJ of heat were absorbed, 360 g of MgSO₄ were produced
Therefore,
When 176 KJ of heat is absorbed = (176 × 360) / 722 = 87.76 g of MgSO₄ will be produce
Thus, the mass of MgSO₄ produced is 87.76 g
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A 25 ml sample of 1.2 molar potassium chloride mix with 15 ml of 0.90 molar barium nitrate solution and precipitate reaction occurs twice case LX + BA no3s aqueous bacl2 solid + 2ks what is the practical yield percentage yield mass is 2.45 g
When 7.59 grams of sodium hydroxide (NaOH) are dissolved in 80.0 grams of water at 25.0 °C in an insulated container, the temperature of the water increases to 48.0 °C. Assuming that the specific heat of the solution is 4.184 J/(g °C) and that no heat is gained or lost by the container, what is the ∆H of solution of NaOH in kJ/mol?
The ∆H of solution of NaOH is 46.8 kJ/mol.
First, we need to calculate the amount of heat absorbed by the solution:
q = m × c × ∆T
where q is the heat absorbed (in Joules), m is the mass of the solution (in grams), c is the specific heat capacity of the solution (in J/(g °C)), and ∆T is the change in temperature (in °C).
In this case, the mass of the solution is the sum of the mass of NaOH and the mass of water:
m = 7.59 g + 80.0 g = 87.59 g
The change in temperature is:
∆T = 48.0 °C - 25.0 °C = 23.0 °C
Substituting the values, we get:
q = 87.59 g × 4.184 J/(g °C) × 23.0 °C = 8,878 J
Next, we need to convert the heat absorbed into the enthalpy change of solution (∆H). The enthalpy change of solution is the heat absorbed per mole of solute. The number of moles of NaOH is:
n = m/M
where M is the molar mass of NaOH, which is 40.00 g/mol.
n = 7.59 g / 40.00 g/mol = 0.1898 mol
Therefore, the enthalpy change of solution is:
∆H = q/n = 8,878 J / 0.1898 mol = 46,780 J/mol = 46.78 kJ/mol
The H of a NaOH solution, rounded to three significant numbers, is 46.8 kJ/mol.
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Malic Acid is found in?
Hydrochloric Acid is found in?
Potassium Hydroxide is found in?
Sodium Hydroxide is found in?
Answer:
Malic Acid is found in Apples.
Hydrochloric Acid is found in Our Stomach.
Potassium Hydroxide is found in Soaps and Bleaches.
Sodium Hydroxide is found in Household Cleaners.
Explanation:
IF MY ANSWER IS HELPFUL THEN PLEASE RATE IT, LIKE IT, FOLLOW ME AND GIVE ME A BRAINLIEST...PLEASE.
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Answer:
Its wrong the question is wrong you should delete it
I need the math to it to show how I got to the answer, please help #2
The number of moles of the water produces by the 1.3 moles of O₂ is 1.00 mol of H₂O. The correct option is C.
The chemical equation is as :
2C₄H₁₀ + 13O₂ ----> 8CO₂ + 10H₂O
The moles of the O₂ = 1.3 moles H₂O
The molar mass of the O₂ = 32 g/mol
2 moles of the C₄H₁₀ produces the 10 moles of the water,
13 moles of O₂ produces the 10 moles of H₂O
The moles of the H₂O = (10/13) × 1.3
The moles of the H₂O = 1 mol
The number of moles of the water is 1 mol of the H₂O and the moles of the oxygen that is O₂ is the 1.3 moles.. Therefore, the correct option is C.
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A flashbulb of volume 1.70 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 29.0 °C. How many grams of O2(g) does the flashbulb contain?
The flashbulb contains approximately 0.00291 grams of O₂(g).
The ideal gas law relates the pressure (P), volume (V), temperature (T), and amount of gas (n) through the equation PV = nRT, where R is the universal gas constant. Rearranging this equation to solve for n gives n = PV/RT.
To find the amount of O₂(g) in the flashbulb, we first need to convert the volume to liters and the temperature to Kelvin:
V = 1.70 mL = 0.00170 L
T = 29.0 °C + 273.15 = 302.15 K
We can then use the ideal gas law to calculate the amount of O₂(g):
n = PV/RT
n = (2.30 atm)(0.00170 L)/(0.0821 L·atm/mol·K)(302.15 K)
n = 9.10 × 10⁻⁵ mol O₂
Finally, we can convert from moles to grams using the molar mass of O₂:
m = n × M
m = (9.10 × 10⁻⁵ mol)(32.00 g/mol)
m = 0.00291 g O₂
As a result, the flashbulb contains around 0.00291 grams of O₂(g).
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What’s a zinc cup made of
Answer:
constructed as a cylindrical container for the battery cell, and a carbon rod surrounded by a compound with a higher Standard electrode potential (positive polarity), known as the cathode, that collects the current from the manganese dioxide electrode
Explanation:
is this what you are talking about?
if two substance are at the same temperature, their enthalpy
Answer:
cannot be measure
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Which of the following aqueous solutions is (are) considered basic?
1. [OH-]= 2.57 × 10-4 M
II. pH= 8.43
III. [H3O+]= 4.27 x 10-5 M
O III only
O II and III only
O I and III only
O I and II only
O All of these
The acidity or alkalinity of a solution depends upon its hydronium ion concentration and hydroxide ion concentration. Here among the given options, all the aqueous solutions are considered as basic. The correct option is E.
The pH of a solution is defined as the negative logarithm to the base 10 of the activity of hydrogen ions. At 298 K, for pure water or in a neutral solution the pH is found to be 7.
For an acidic solution, the concentration of H₃O⁺ is greater than 10⁻⁷ M and the pH will be less than 7. For a basic solution, the concentration of H₃O⁺ is less than 10⁻⁷ M and hence the pH will be greater than 7.
Thus the correct option is E.
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Julian put a heater with a power of 30 W into a block of copper and recorded the temperature of the block every minute for ten minutes. His results are below. How much energy had been transferred after 2 minutes?
The amount of energy transferred after 2 minutes is 3600 Joules.
We can use the formula for thermal energy to calculate the amount of energy transferred after 2 minutes:
Q = P * t
where Q is the thermal energy transferred (in Joules), P is the power of the heater (in Watts), and t is the time (in seconds).
We can convert the power from Watts to Joules/second:
30 W = 30 J/s
We can also convert the time from minutes to seconds:
2 minutes = 2 * 60 seconds = 120 seconds
Now we can substitute these values into the formula:
Q = P * t
Q = 30 J/s * 120 s
Q = 3600 J
Therefore, the amount of energy transferred after 2 minutes is 3600 Joules.
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Answer:
Explanation:
3600 Joules.
If 0.225 mol of an ideal gas has a volume of 1923 mL and a pressure of 6.00 atm, what is its temperature in degrees Celsius?
Use one of the following values:
R = 0.0821 atm • L/mol • K
R = 8.31 kPa • L/mol • K
R = 62.4 torr • L/mol • K
The temperature (in °C) given that 0.225 mole of an ideal gas has a volume of 1923 mL and a pressure of 6.00 atm is 351.6 °C
How do i determine the temperature of the ideal gas?First, we shall list out the various parameters obtained from the question. This is shown below:
Number of mole of ideal gas (n) = 0.225 moleVolume of ideal gas (V) = 1923 mL = 1923 / 1000 = 1.923 LPressure (P) = 6 atmGas constant (R) = 0.0821 atm.L/mol KTemperature of ideal gas (T) =?The temperature of the ideal gas can be obtain as follow:
PV = nRT
6 × 1.923 = 0.225 × 0.0821 × T
11.538 = 0.0184725 × T
Divide both sides by 0.0184725
T = 11.538 / 0.0184725
T = 624.6 K
Subtract 273 to obtain answer in °C
T = 624.6 - 273 K
T = 351.6 °C
Thus, we can conclude that the temperature of the ideal gas is 351.6 °C
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Elements that easily give up 1-3 electrons are called *
metals
Ononmetals
O noble
Ometalloids
noble gases
Answer:
metalloids
Explanation:
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The energy required to dissociate the Cl2 molecule to Cl atoms is 239 kJ/mol Cl2. If the dissociation of a Cl2 molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required, what would be its wavelength (in meters)?
Explanation:
The energy of a single photon can be calculated using the equation E = hc/λ, where E is the energy of the photon, h is Planck's constant (6.626 x 10^-34 J.s), c is the speed of light (2.998 x 10^8 m/s), and λ is the wavelength of the photon.
To dissociate one mole of Cl2 molecules, we need 239 kJ of energy. This corresponds to 239,000 J/mol of Cl2.
Now we can use the relationship between energy and the number of photons absorbed: E = Nhf, where N is the number of photons absorbed, h is Planck's constant, and f is the frequency of the absorbed photons.
We can relate the frequency of the absorbed photon to its wavelength using c = λf. Solving for f gives f = c/λ.
Combining these equations, we get E = Nh(c/λ), or N = E/(hc/λ). Substituting the value of E for the energy required to dissociate one mole of Cl2, we get:
N = (239,000 J/mol) / [(6.626 x 10^-34 J.s) x (2.998 x 10^8 m/s) / λ]
Solving for λ, we get:
λ = hc / (239,000 J/mol) = (6.626 x 10^-34 J.s x 2.998 x 10^8 m/s) / 239,000 J/mol
λ = 8.44 x 10^-7 m
Therefore, the wavelength of the photon required to dissociate one Cl2 molecule is approximately 8.44 x 10^-7 meters (or 844 nanometers).
The concentration of an aqueous solution of NaCl is 15% by mass. How much NaCl is in a 500 gram sample of the solution?
a. 425 grams
b. 750 grams
c. 75 grams
d. 330 grams
Answer:
To solve this problem, we can use the definition of percent concentration by mass:
percent concentration = (mass of solute ÷ mass of solution) x 100%
We know that the percent concentration of NaCl in the solution is 15% by mass, and we have a 500 gram sample of the solution. Let's assume that the mass of NaCl in the sample is x grams.
Using the percent concentration formula, we can write:
15% = (x ÷ 500) x 100%
Simplifying this equation, we get:
x = (15 ÷ 100) x 500 = 75 grams
Therefore, there are 75 grams of NaCl in a 500 gram sample of the solution.
The correct answer is c. 75 grams.
1. Explain how you would determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following information. You do not need to calculate an answer. Respond to the prompt with a minimum response length of 50 words.
we can determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following steps:
write the balanced chemical equation for the reactionwe obtain the standard enthalpies of formation for each compoundwe apply Hess's law calculate the enthalpy of reactionwe then add up the changes to get the total enthalpy change for the reaction State Hess law?Hess's Law of Constant Heat Summation states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.
The law is Hess's Law of Constant Heat Summation is described as a manifestation that enthalpy is a state function.
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Which part of the electromagnetic spectrum is nearest to X-rays?
Answer:
UV or Gamma Rays
Explanation:
X-rays: 10^-10
UV: 10^-8
Gamma Rays: 10^-12
3.
(08.04 LC)
Which of the following is a base? (3 points)
AgO
Ca(OH)2
HF
NaCl
The compound that is a base from the given list is Ca(OH)2. Option 2.
What is a base?
A base is a chemical substance that produces hydroxyl ions as the only negative ion in aqueous solutions.
Ca(OH)2 is calcium hydroxide, which is a chemical compound consisting of one calcium ion (Ca2+) and two hydroxide ions (OH-).
It is classified as a base because, when it dissolves in water, it produces hydroxide ions that can accept protons (H+) from acids in a process known as a neutralization reaction.
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Imagine that you mix 25 g of water at 25 ºC with 25 g of water at 65 ºC. Predict the final temperature of the sample.
The final temperature of the mixture given that 25 g of water at 25 °C is mixed with 25 g of water at 65 °C, is 45 °C
How do i determine the final temperature of the mixture?The final temperature of the mixture can be obtained by calculating the equilibrium temperature of the mixture. This is shown below:
Mass of cold water (M) = 25 gTemperature of cold water (T) = 25 °CMass of warm water (Mᵥᵥ) = 25 gTemperature of warm water (Tᵥᵥ) = 65 °CEquilibrium temperature (Tₑ) =?Heat loss by warm water = Heat gain by cold water
MᵥᵥC(Tᵥᵥ - Tₑ) = MC(Tₑ - T)
Cancel out C
Mᵥᵥ(Tᵥᵥ - Tₑ) = M(Tₑ - T)
25× (65 - Tₑ) = 25 × (Tₑ - 25)
Cancel out 25
65 - Tₑ = Tₑ - 25
Collect like terms
65 + 25 = Tₑ + Tₑ
90 = 2Tₑ
Divide both side by 2
Tₑ = 90 / 2
Tₑ = 45 °C
Thus, we can conclude that the final temperature the mixture is 45 °C
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