Molarity = 0.053 M
pH = 1.276
Further explanationGiven
5 g of HNO₃
1.5 L solution
Required
Molarity
pH
Solution
Molarity shows the number of moles of solute in every 1 liter of solution.
mol HNO₃(MW=63 g/mol) :
= mass : MW
= 5 g : 63 g/mol
= 0.079
Molarity :
=0.079 : 1.5 L
= 0.053 M
pH = -log [H⁺]
For strong acids like HNO₃ :
[H⁺] = a.M
a = valence of acid / amount of H⁺ released
M = acid concentration.
HNO₃ ⇒ H⁺ + NO₃⁻⇒ valence 1(amount of H⁺=1)
[H⁺]=1 x 0.053
[H⁺]= 0.053 M
pH= - log 5.3 x 10⁻²
pH = 2 - log 5.3
pH= 1.276
Ideal Gas Law Test
11 have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of S0 liters, what is the temperature of the gas?
O 1603 K
O 273 K
O 0.0006
O 0.0006 K
Answer:
T = 1603 K
Explanation:
Given data:
Number of moles of gas = 1.9 mol
Temperature of gas = ?
Pressure of gas = 5 atm
Volume of gas = 50 L
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
By putting values,
5 atm × 50 L = 1.9 mol × 0.0821 atm.L/ mol.K × T
T = 250 atm.L / 1.9 mol × 0.0821 atm.L/ mol.K
T = 250 atm.L /0.156 atm.L/K
T = 1603 K
6. The proper combination of temperature, water, and oxygen
Answer:
electrolytic reaction; oxygen and hydrogen combine to form water, producing electrical energy and releasing heat.
Explanation:
What drives convection currents in the atmosphere?
A. Heat from Earth's core
B. Jake from State Farm
C. The Sun
Answer:
a I guess
Explanation:
What are the coefficients that would correctly balance this equation? ____Zn + ____K₂CrO₄→ ____K + ____ZnCrO₄
Answer:
Zn + K2CrO4 -----> 2K + ZnCrO4
Explanation:
Balance the chemical equation. Based on the equation, how many grams of chlorine are produced when the sodium chloride decomposes and produces 19.5 grams of sodium? Use the periodic table to get the weights of the elements.
Drag the labels to the correct locations to complete the analysis. Each label can be used more than once.
]
Answer:
Answer is in the photo
Explanation:
Have a nice day and if the photo isn’t visible let me know! :)
The balance chemical equation is as,
[tex]2NaCl[/tex] → [tex]2Na + Cl_{2}[/tex]
The 30.1 grams of chlorine are produced when the sodium chloride decomposes and produces 19.5 grams of sodium.
Calculation,
22.99 g of sodium present in 1 mole of sodium atom.
In 19.5 g of sodium = 19.5 g× 1 mole / 22.99 g = 0.85 mole
The mole ratio = 2:1
It means 2 mole of sodium produce along with 1 mole of chlorine when sodium chloride decomposed.
So, number of mole of chlorine when 0.84 mole of sodium produce = 0.85 mole×1 mole/ 2 mole = 0.424 mole
number of mole of chlorine = given mass/molar mass of [tex]Cl_{2}[/tex] = 0.424
Given mass of [tex]Cl_{2}[/tex] = molar mass of [tex]Cl_{2}[/tex]× number of moles of [tex]Cl_{2}[/tex] = 70.9×0.424 = 30.1 gram
What is balanced chemical equation?The symbolic representation in which number of atoms in reactant side is equal to number of atoms in product side.
learn about balance chemical equation,
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Why do people say air is a poor conductor , but isn't conduction happens in solid?
Explanation:
It is mainly the very low density of gases that make them bad conductors of heat. In liquids and solids atoms and molecules are densely packed and transfer of energy has much smaller distances to happen.
hope it helps u
A problem is usually posed in the form of
A Experiment
B Method
C Question
Answer:
A i did it on edge
Explanation:
Aaaaaaaaaaaaaaa
What 58x999what is fifty eight times 999
Answer:
58x999 is equal to 57,942
✧brainliest appreciated✧
the numerus rocks orbiting the sun between jupiter and mars are classified as----
which process are the products of the reaction glucose and oxygen?
A.
Photosynthesis
B.
Aerobic cellular respiration
C.
Lactic acid fermentation
D.
Alcoholic fermentation
Answer:
b
Explanation:
furutitirhrhirgrkgrigrigrivrgr
plzzz helppp!!!
How long would it take you to travel 8 miles at a speed of 1 mile per hour?
Answer:
It would take you 8 hours.
Explanation:
This would take you 8 hours because you are going 1 mile an hour. So in 1 hour, you would have gone 1 mile.
help? It’s question 9
Answer:
a
Explanation:
its a
what type of chemical reaction is it
Answer: It's chemical
Explanation:
Because it's chemical :))
BRAINLIEST FOR THE FIRST ANSWER How are isotopes used in industry?
Answer: Radioisotopes are used by manufacturers as tracers to monitor fluid flow and filtration, detect leaks, and gauge engine wear and corrosion of process equipment. Small concentrations of short-lived isotopes can be detected whilst no residues remain in the environment.
Explanation: Uranium-235 is used for nuclear fission and as a fuel in nuclear reactors.
An isotope of cobalt is used in the treatment of cancer.
An isotope of iodine is used in the treatment of goiter.
The third step in the Decision Making process is to list your pros and cons for each option.
A pro and Con is ___________about each option.
A
Something positive and negative
B
Something positive
C
Something negative
D
None of the answers
Answer:
A. Something positive and negative
Explanation:
difference between shell and subshell?
Which describes an attribute of nonrenewable resources? exist in fixed amounts are unlimited can often be replaced in a short time are replaced faster than they are used
Answer:
exist in fixed amounts
Explanation:
The only attribute that describes nonrenewable resources is the existence in fixed amounts.
Nonrenewable resources are limited in amount and depleted at a much faster rate than they are naturally replaced. Even when they are to be replaced, it cannot be done within a short period.
An example is crude oil which exists as natural deposits deep in the ground. The world's crude oil deposit is limited and cannot be replaced at a rate they are being used by man if at all it can be replaced.
An attribute of nonrenewable resources' is they exist in fixed amount. The correct option is A.
What are non-renewable resources?
Non-renewable resources are those resources which are produced in millions of years, and are limited. Once these resources extincted, it will take millions of years again to produce these resources.
Thus, the correct option is A, exist in fixed amount.
Learn more about non-renewable resources
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In the chemical reaction below, sodium would be considered a 2Na + Cl2 --> 2 NaCl O catalyst O intermediate product restant
Answer:
Reactant
Explanation:
The chemical expression is given as:
2Na + Cl₂ → 2NaCl
The species on the left hand side which are Na and Cl₂ are referred to as the reactants.
The specie on the right hand side, NaCl is the product of the reaction.
There is no catalyst shown in this reaction.
Such a reaction as this is called a combination reaction or synthesis reaction in which two reactants gives rise to a product.
Need help with these two, solve only the ones you can though :D
Answer: 27 is A and 28 is C.
Explanation: I’ll explain 28 but not 27 because that’s just definitions.
In CuSO4 there is a Cu, an S, and 4 O molecules. Add them up you get 6.
NEED HELP PLSSS
Compound A has a mass of 20.00 u. Compound B has a mass of 60.00 u. How will the number of molecules in 5.00 g of Compound A compare to the number of molecules in 15.00 g of Compound B
Write a chemical formula for this molecule.
Answer:
CO2
Explanation:
we can see one carbon atom and 2 oxygens meaning this is Carbon dioxide or CO2
1. How many atoms are in 3.5 moles of nickel?
The number is 6.022 x 10^23 atoms/mol.
What kind of waves can travel through a vacuum?
Mechanical waves
Electromagnetic waves
All of the above
None of the above
Please help ASAP
Answer:
electromagnetic wave
Explanation:
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate.
Need answer immediately. For college homework. Organic Chemistry.
Here's the question written out so others can find it if they need:
Provide a structure for the following compound: C6H16N2; IR: 3281 cm–1; 1H NMR: δ 1.1 (8H, t, J = 7 Hz), δ 2.66 (4H, q, J = 7 Hz), δ 2.83 (4H, s). (Hint: The triplet at δ 1.1 conceals another broad resonance that contributes to the integral.)
THIS IS THE ANSWER: CH3-CH2-NH-CH2-CH2-NH-CH2-CH3
I hope this helps! Please give Brainliest if you feel this helped. Have a good day and a good rest of your 2021, best of luck with your classes.
Answer:
the answer is below.
Explanation:
CH3-CH2-NH-CH2-CH2-NH-CH2-CH3
Find the density of an object that has a mass of 66 g and a volume of 10 cm?
a.)660 g
b.)6.6 g/cm^3
c.)0.15 cm 3/g
d.)6.6 cm 3/g
Answer:
B
Explanation:
Density = mass / volume
66 grams / 10 cm = 6.6 g per cubic cm
Kinetic energy is energy of motion. What below is considered to be a form of kinetic energy?
Answer:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity Having gained this energy during its acceleration the body maintains this kinetic energy unless its speed changes
Example:
A semi-truck travelling down the road
A river flowing at a certain speed
Look at the following equation.
_N2 + _H2 - _NH3
In order to follow the law of conservation of mass, this equation must have which set of coefficients, in order from left to right?
A.
1,3,2
B.
3, 3, 1
C.
2,2,2
D.
2,3,1
Answer:
A
Explanation:
_N2 + _H2 - _NH3
LHS RHS
N=2×1=2 N=1×2=2
H=2×3=6 H=3×2=6
1,3,2
A car traveled 210 km in 3.5 hours. What was its average speed in km per hour?
OA. 60
OB. 70
OC. 40
OD. 75
Answer:
A) 60
Explanation:
Given data:
Distance traveled by car = 210 km
Time taken = 3.5 hour
Speed of car = ?
Solution:
Formula:
S = d/t
s = speed of car
d = distance
t = time
by putting values,
s = 210 km / 3.5 hour
s = 60 km/hour
What kind of reaction is this
Na2O + CO2 → Na2CO3
Answer:
Explanation:
Na 2O + CO 2 → Na 2CO. 3
This is an acid-base reaction (neutralization): Na 2O is a base, CO 2 is an acid.
Hope this helps!!!!!!
Brainlist please
The reaction of N₂O with CO₂ giving Na₂CO₃ is a combination reaction, where two reactants combines to form a product.
What are types of reactions?There are different kinds of reactions namely, displacement reactions, combination reactions, decomposition reaction etc.
The reaction in which one reactant species displace the constituent group of another reactant it is termed as displacement reactions. On decomposition reaction, one reactant decomposes into two or more products.
In a single displacement reaction, one of the group is displaced to form a new product and in double displacement reactions, two species from reactant side are displaced.
Similarly, a reaction in which two reactants simply combines to form a product is termed as combination reaction.
Therefore, the type of the given reaction is combination.
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HELP!!! An experiment was conducted to determine if the intermolecular forces in two liquids affects their boiling points. Each liquid was sprayed on a paper towel. Each
paper towel was wiped across a glass table to moisten the surface. The table shows a partial record of the experiment.
Experimental Record
Liquid Intermolecular Forces ?
А
relatively strong
B
relatively weak
What information should be recorded in the last column of the table?
Time taken by the liquids to start boiling
Time taken by the glass surface to dry
Volume of liquid required to moisten the paper towels
Time taken by the paper towels to become completely moist
Answer: it would be b time taken by the glass surface to dry
Explanation:
i had took the test and i got it right
Answer:
B: Time taken by the glass surface to dry
Explanation:
because if you go to a store and buy two different brands like for example you but windex or invisible glass then you can say for example if i use windex it will dry faster and with invisible glass i will take longer to dry but if you use windex witch drys faster then you will not have streaks on the table when someone sits. and i also got it right
