What is the correct conversion factor and the answer?

Answer:

The faster the particles are moving, the more thermal energy they have.

Explanation:

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The force is unbalanced and is towards right with 8 newton force.

it is beacuse upward and downward forces are cancelling each other.

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1) Due to the fact that we are initially uncertain of the distribution of the parent population from which our sample was collected.

2) The second question is incomplete, thus I am unable to answer it.

Therefore, it is advisable to only use one sample when doing non-parametric tests like the sign test or Wilcoxon sign test (depending upon the choice of the researcher).

A physical constant, also known as a basic physical constant or universal constant, is a physical number that is often believed to be both universal in nature and to have a constant value across time. In contrast, it is described by a mathematical constant, which has a constant value but doesn't immediately call for any physical measurement.

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On mixing chalk powder and water, the mixture obtained is suspension.

The four reasons to support the fact that the mixture of chalk and water is suspension are:-

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Strain energy for the conformer is 13.8 kj/mol

Energy of eclipsed H-H bond is 4.0 kJ mol

Energy of eclipsed Н-СH3 bond is 5.8 kJ mol

Total strain energy of conformer (S,) E=2×ECLIPSED(H-H)+eclipse(H-CH3)

Substitute, 4.0 kJ mol for eclipsed (H-H) and 5.8 kJ mol for eclipsed (H-CH thus,

E =2x4.0 kJ mol +5.8 kJ mol

E=13.8 kJ mol

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The mass of water in flask is 9.994g, where an empty flask has a mass of 93.625g containing 10.00ml sample of water in it with a mass of 103.619g.

In analytical chemistry, for preparation of a solution with exact concentration precise determination of mass or  volume is required. We can determined mass precisely by using a Sartorius balance and volume by volumetric flask, burette, or pipette.

Given,

Mass of empty flask = 93.635g

Mass of the flask filled with water = 103.619g

Mass of the water in the flask =?

Therefore,

The mass of water(M) in the flask is -

M = (Mass of the flask filled with water) - ( Mass of the empty flask)

   = (103.619g) - (93.625g)

   = 9.994g

Hence,

The mass of water in the flask is 9.994g

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The empirical formula of given hydrocarbon is C1H4.

44g of CO2 → 1mol of carbon

∴0.1467g of carbon dioxide → 0.1467/44 = 0.0033 mol of C

18 g of water → 2mol of Hydrogen

∴ 0.1201 g of water = 2/18 × 0.1201. = 0.013 mol of H

molar ratio of C:H is 0.003 : 0.013

C:H = 1:4

Therefore empirical formula is C1H4

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Answer:lol

Explanation:

The terms used to complete the statement are:

In this experiment:

Select term variables:

1. Source of paper towel used

2. Light intensity

3. Temperature of the room

The addition of water to the paper towel is the:

Independent variable (sometimes referred to as the manipulated variable or cause variable).

The number of pill bugs observed on each paper towel over time is the:

Dependent variable (sometimes referred to as the responding variable or effect variable).

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The question attached here is seems to be incomplete, the complete question is

Select the correct term to complete each sentence:

1. The source of paper towel used, light intensity, and temperature of the room are all __________ variables in this experiment.

2. The addition of water to the paper towel is the  __________ variable.

3. The number of pill bugs observed on each paper towel over time is the  __________ variable.

(b) This question is incomplete. To determine how many moles of CuSO4 are present in the impure sample, however. The following formula may be applied

moles = mass of CuSO₄  in impure sample ÷ molar mass of CuSO₄

(c) This question is also incomplete. , to calculate the mass percentage of CuSO₄ present in the impure sample of CuSO₄, the formulato be  used is :

Mass percentage of CuSO₄ =mass of CuSO₄ present in the impure sample divide by mass of impure CuSO₄ × 100

Since the actual mass of the CuSO4 contained in the impure sample had to be determined before determining the number of moles, the mass of the impure sample must also be measured.

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The mass in grams of calcium chloride required to prepare a 16% weight/volume solution is 80 g.

The concentration of a solution is the amount of solute present in a given volume of solution.

Concentration can be expressed as:

The unit of percentage weight/volume concentration is g/mL

The mass of calcium chloride required to prepare a 16% weight/volume solution = 16% * 500 mL * 1g/mL

The mass of calcium chloride required = 80 g

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The total energy in the system is constant hence mechanical energy is conserved as the pendulum moves.

The term mechanical energy refers to energy that is at rest or in motion. The energy that is at rest is called the potential energy while the energy that is in motion is the kinetic energy. A pendulum is always used to demonstrate the principle of the conservation of mechanical energy.

According to this principle, mechanical energy could neither be created nor destroyed but is converted from one form to another. The image as shown leads us to the conclusion that mechanical energy is conserved.

We can see that the potential energy is max at the both ends and is converted into kinetic energy as the bulb moves. The total energy of the system stays the same as we can see from the graph.

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5 significant, because u have to start counting after the point

There are four significant figures in the given measurement  as there are  four non-zero numbers after the decimal.

Significant figures are used for establishment  of a number which is presented in the form of digits. These digits give a meaningful representation  to the numbers.

The significant figures are the significant digits which convey the meaning according to the accuracy. These provide precision to the numbers and hence are called as significant numbers.There are rules for counting significant figures which are as follows:

1)All non-zero digits are significant .

2)All zeroes which occur between non-zero digits are significant.

3)All zeroes to the left and right of  a non-zero digit are not significant.

4) All zeroes on right  of decimal are significant if a non-zero number follows them.

5)All zeroes on right side of non-zero digit are significant.

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The calculated value is 1177.263 Liters.

Remember that there is a distinction between a liquid cup and a dry measure cup, just as there is between ounces and gallons. Simply divide the quantity by 16 to determine the number of gallons from the quantity of (liquid) cups.

There are 128 ounces in a gallon, according to a free online liquid measurement conversion calculator. We now understand that there are eight water bottles in a gallon by dividing 128 by 16.9 and rounding up.

311 Gallons = 1177.263 Liters

To convert a gallon measurement to a liter measurement, multiply the volume by the conversion ratio. The volume in liters is equal to the gallons multiplied by 3.785412. There are 3.785 liters in a gallon and a liter is 0.264 of a gallon.

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Number of atoms present in 9.6g of Mg element is 24.08 × 10^23

Given,

given mass of magnesium is 96g

molar mass of magnesium 24 g/mol

First we will find out number of moles in 96g of magnesium.

Number of moles = given mass / molar mass

= 96 / 24 = 4

To find number of atoms we will multiply no of moles to avagadro number

number of atoms = 4 × 6.02 × 10^23

= 24.08 × 10^23

Hence number of atoms in 96 g of magnesium are 24.08 × 10^23

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0.1535g is the mass of the air contained in the flask.

A substance's density is defined as its mass per unit of volume. Density is most frequently represented by the symbol, however Latin letter D may also be used. Mass divided by volume is the formula for density in mathematics: ρ = M/V. where m is the mass, V is the volume, and ρ is the density.

The given are:

1.      Mass = ?

2.     Density = 1.228 g/L

3.      Volume = 125mL to L

Plugging in the values we get,

ρ = M/V

1.228 = M/ 0.125

M = 0.1535g

Therefore, 0.1535g is the mass of the air contained in the flask.

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Using dimensional analysis, the correct conversion is:

40 mL * 1 gram/100 gallons * 75 gallons

Volume of medication required to treat a 75gallon aquarium is 30 mL.

Dimensional analysis is the process by which different physical quantities are compared and expressed in terms of the dimensions of the fundamental quantities and units of measurement.

In dimensional analysis, calculations performed track the dimensions of the quantities by means of a conversion factor.

Considering the give calculation:

A medication (powder) that is 1 gram / 100gallons of water is to be used to treat a 75gallon aquarium.

1 gram of the medication is added to a bottle of 40mL of water, shaken and then drawn up with a syringe that is in mL.

Therefore, 40 mL of the solution contains 1 g of the medication.

The correct dimensional analysis for volume of medication required is given below:

40 mL * 1 gram/100 gallons * 75 gallons = 30 mL

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Answer:

what are you trying say about BLANK 7 times?????????!!!!!!!!!!!!!!

Answer:

The correct answer is blank

Explanation:

plato

The consequence of the reaction between  sulfuric acid and tetrazine is fire. Option D

The compound tetrazine is a basic compound that is composed of four atoms of hydrogen and two atoms of carbon. The formula of the compound is [tex]C_{2} H_{2}N_{4}[/tex] . The compound is a six membered ring that could react with acids and become decomposed. In all cases of the decomposition of the tartazine the reaction is a violent one that leads to the evolution of flames.

In this case, we have been told that there is a reaction between   sulfuric acid and tetrazine. This is a very violent reaction that would result in the charring of the substrate.

Thus, when there is a chemical interaction between  sulfuric acid and tetrazine, the result is fire.

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Answer:

1, I'm not sure but I hope it helps God Bless

Answer: GoodMorning: ) ✨ How an atom reacts chemically depends on how willing it is to share electrons with others. So  When copper is combined with another element, in it makes bronze, the first manmade metal alloy. Ok let me just explain it to u to make it easy 4 you to understand .

Explanation: So we should know that when An atom refers to the smallest, indivisible unit made up of matter and forms all chemical elements.

Hence, atoms are the fundamental building blocks of matter and they determine the structure of all chemical elements.

In Chemistry, an atom is made up of three (3) distinct subatomic particles and these include;

Chemical reactivity determines how readily a chemical element bonds with other chemical elements by sharing its electrons with them.

As a general rule, how an atom reacts chemically is highly (largely) dependent on the number of valence electrons in the outermost shell of its atom.

In conclusion, the willingness of an atom to share electrons determines how it reacts chemically with others.

Have a Great Day: ) <3

Answer:

Lead (IV) Iodide

Explanation:

The statement of Dr. Watson has no empirical basis. It was a personal opinion hence he ought to be stripped of his honors over views regarding race.

Dr.  James Watson was involved in the discovery of DNA. He was an expert and lead researcher at the New York laboratory. The Nobel price as awarded to him in conjunction with two other scientist in 1962 for the discovery of the molecular structure of DNA.

Dr. Watson expressed his views once when he said that Racial equality is not an empirical fact and did not corroborate such with an empirical back up. He merely asked those that don't believe to ask those who deal with black employees.

Because of this, his position at the New York Laboratory was revoked as well as a revocation of his honorary titles. This action of stripping him of is honorary titles is correct because of the possibility of his statement to engender bios and discrimination against people of minority races.

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Answer:

120 protons, 120 neutrons, 120 electrons

Explanation:

The number written next to element (americium - 240) is the mass number. The mass number consists of all the protons and neutrons within an atom of a particular element. Assuming that this atom is not an isotope (atoms of the same element with different number of neutrons), there should be an equal amount of protons and neutrons.

Therefore, if the mass number is 240, there should be 120 protons and 120 neutrons in the atom (240 / 2 = 120).

In neutral atoms, there is an equal amount of positively charged protons and negatively charged electrons. As such, if there are 120 protons, there should be 120 electrons.

The westernmost portion of the subtropical belt is home to the Himalayan subtropical pine forests, which are dominated by the Chir pine (Pinus roxburghii).

Although the Himalayan region, which includes Bhutan, Nepal, northern India, Pakistan, and the Tibet Autonomous Region, is known for its mountainous topography, it also exhibits a remarkable amount of ecological diversity.

The mountains' altitude, slope, and aspect, their intricate glaciology and hydrology, as well as the climate and microclimates that the range itself shapes, all contribute to this diversity. It is visible in grasslands, temperate, tropical, and subtropical forests, as well as glacial lake and river systems, high altitude deserts, and montane regions. The region's diversity of people matches that of its ecosystem.

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1 torr = 0.001 atm

Therefore, 740 torr = 0.740 atm

Let us find out the volume of the gas at STP. At STP, pressure = 1 atm

Now, from Boyles law P1V1 = P2V2

where, lety P1 = pressure given = 0.740 atm

V₁ = Volume at 0.740 atm = 162.2 mL

P2= pressure at STP = 1 atm

V2= volume of the gas at STP From the formula, V₂ = P1V1/P2

Therefore, V₂ = (0.740 x 162.2) / 1 = 120.028 mL of hydrogen gas

Therefore, no. of moles of hydrogen gas obtained = 120.028/22400 = 5.36 x 10-3 moles

Therefore, mass of H2 gas the chemist collected = 5.36 x 10-3 x molar mass of hydrogen = 5.36 x 10-3 x 2 = 0.0107 g.

The gas should replace the water and you should see a bubble shape at the top of the test tube. Once the test tube is filled with hydrogen, dip another test tube into the water and place it on the hose. You can collect as much hydrogen as is produced by the reaction. A common hydrogen compound is a water. Diatomic hydrogen, that is, two atoms per molecule, can be separated from distilled water by electrical separation. This process is known as electrolysis and also produces oxygen gas. This is the easiest and safest way to collect and store hydrogen gas.

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The mass of Hydrogen collected is 0.01072 g.

Let us understand the process of electrolysis.

Electrolysis of water is splitting of water molecule into Hydrogen and Oxygen separately by using electricity. This process is also known as decomposition of water.

In this experiment performed in laboratory, the chemist collected some constants which are given to us as:

Given-

Volume of hydrogen gas collected = 162.2 mL

Pressure = 740 torr.

Using the Boyle’s Law, we can find out the pressure and volume of the gas at STP.

STP = 1 atm but the pressure is in torr so we’ll convert torr into atm.

1 torr = 0.001 atm

Therefore, 740 torr = 0.740 atm

Now, we can apply Boyle’s Law and find the volume of the gas.

Boyle’s Law = P₁ V₁  = P₂ V₂.

After substituting the values, we’ll get the volume (V₂) of the gas.

With this we can easily find out the mass of hydrogen gas collected.

The solution is shown in the image below.

Therefore, the mass of the Hydrogen collected by chemist is 0.01072g.

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The energy of a light with a frequency of 3000 MHz is 1.9878 × 10-²⁴ J.

Energy of a wave such as light wave can be calculated by multiplying Planck's constant by the frequency of the light as follows:

E = hf

Where;

According to this question, a light wave has a frequency of 3000 MHz. The energy can be calculated as follows:

E = 6.626 × 10-³⁴J/s × 3 × 10⁹Hz

E = 1.9878 × 10-²⁴ J

Therefore, the energy of a light with a frequency of 3000 MHz is 1.9878 × 10-²⁴ J.

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Molecular formula of Tartaric Acid is C ₄ H ₆ O ₆ .

As it is given that ,

C = 32 . 04 %

H = 4 . 03 %

O = 63 . 96 %

So , composition in grams is :

C = 32.04 g

H = 4.03 g

O = 63.96 g

Now we have to find no. of moles of each element :

C = 32.04 / 12 = 2.67

H = 4.03 / 1 = 4.03

O = 63.96 / 16 = 3.99

Dividing no. of moles with smallest no. of moles .

For C , 2.67 / 2.67 = 1

For H , 4.03 / 2.67 = 1.5 ≈ 2

For O , 3.99 / 2.67 = 1.49 ≈ 2

So , Empirical formula = C₂ H₃ O₃

E.F. Mass = 24 + 3 + 48 = 75 amu

Molecular  mass = 150 amu

So , n = Molecular  mass / E.F. Mass

      n = 150 /75

      n = 2

So , Molecular formula = ( C H₂ O₂ )n

=  ( C₂ H₃ O₃ ) ₂

= C ₄ H ₆ O ₆

Hence , Molecular formula of Tartaric Acid is C ₄ H ₆ O ₆ .

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