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3 years ago

What is the average mass of a single chlorine atom in grams?

Chemistry

2 answers:

aliina [53]3 years ago

6 0

It’s 5.88 x 10^-23.............

Art [367]3 years ago

5 0

Answer: m = 5.81x10-²³ g Cl

Explanation: First is to find the number of moles of Cl in 1 atom of Chlorine. To solve this we will use the Avogadro's Number to convert atoms to moles.

1 atom Cl x 1 mole Cl / 6.022x10²³ atoms Cl

= 1.66x10-²⁴ moles Cl

The next step is to convert the moles of Cl to mass using its molar mass.

1.66x10-²⁴ moles Cl x 35 g Cl / 1 mole Cl

= 5.81x10-²³ g Cl.

Cancel out the units of moles Cl.

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The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. The specific heat of this substance is __________

lisabon 2012 [21]

Answer : The specific heat of this substance is, 1.13 J/g.K

Explanation :

Molar heat capacity : It is defined as the amount of heat absorbed by one mole of a substance to raise its temperature by one degree Celsius.

As we are given that the chemical formula of compound is, $C_2H_6SO$

First we have to calculate the molar mass of given compound.

Molar mass of $C_2H_6SO$ = $2(12g/mol)+6(1g/mol)+32g/mol+16g/mol$

Molar mass of $C_2H_6SO$ = 78 g/mol

Now we have to calculate the specific heat of this substance.

Specific heat of this substance = $\frac{\text{Molar heat capacity of a compound}}{\text{Molar mass of }C_2H_6SO}$

Specific heat of this substance = $\frac{88.0J/mol.K}{78g/mol}$

Specific heat of this substance = 1.13 J/g.K

Thus, the specific heat of this substance is, 1.13 J/g.K

7 0

3 years ago

The volume of any gas is dependent on what three variables? *

coldgirl [10]

The volume of a gas is dependent on:

1. Pressure

2. Temperature

3. Amount of gas.

4 0

3 years ago

To determine the concentration of chloride ion (Cl-) in a 100 mL sample of ground water, a chemist adds a large enough volume of

Orlov [11]

Answer:

$[Cl^-]=232.3\frac{mgCl^-}{L}$

Explanation:

Hello,

In this case, we can represent the chemical reaction as:

$Cl^-(aq)+AgNO_3(aq)\rightarrow AgCl(s)+NO_3^-(aq)$

In such a way, since the mass of the obtained silver chloride is 93.9 mg, we can compute the chloride ions in the ground water by using the following stoichiometric procedure whereas the molar mass of chloride ions and silver chloride are 35.45 g/mol and 143.32 g/mol respectively:

$m_{Cl^-}=93.3mgAgCl*\frac{1mmolAgCl}{143.32mgAgCl}*\frac{1mmolCl^-}{1mmolAgCl} *\frac{35.45mgCl^-}{1mmolCl^-} =23.23mgCl^-$

Finally, for the given volume of water in liters (0.100L), we compute the required concentration:

$[Cl^-]=\frac{23.2mgCl^-}{0.100L}\\$

$[Cl^-]=232.3\frac{mgCl^-}{L}$

Best regards.

5 0

4 years ago

PLEASE HELP

Ksenya-84 [330]

B) less
As if the atom has more electrons than protons it is negatively charged

8 0

3 years ago

Read 2 more answers

Crude oil may contain hundreds of different types of hydrocarbons. Some examples include: Butane(C4H10) Dodecane (C12H26) Octane

Klio2033 [76]

Answer:

The answer to your question is below

Explanation:

Material Classification Reason

Crude oil Mixture Because we know that crude oil

is composed of different substances.

Butane Compound Because it is composed of carbon

and hydrogen

Dodecane Compound Because it is composed of carbon

and hydrogen.

Octane Compound Because it is composed of carbon and

hydrogen.

Benzene Compound It is also composed of carbon and

hydrogen.

Gasoline Mixture It is a combination of hydrocarbons

Kerosene Mixture It is a combination of hydrocarbons

Oxygen Element We can find it in the periodic table.

Carbon dioxide Compound It is composed of carbon and oxygen.

Water Compound It is composed of hydrogen and

oxygen.

8 0

4 years ago

Read 2 more answers