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satela [25.4K]
3 years ago
12

A chemist determined by measurements that moles of calcium sulfide participate in a chemical reaction. Calculate the mass of cal

cium sulfide that participates.
Chemistry
1 answer:
Harman [31]3 years ago
6 0

corrected question:

A chemist determined by measurements that 0.03 moles of calcium sulfide participate in a chemical reaction. Calculate the mass of calcium sulfide that participates

Answer:

Explanation:

number of moles of CaS

molar mass of CaS = 40+32 = 72g/mol

number  of moles = mass/ molar mass

mass = number of moles * molar mass

mass = 0.03 *72

mass of calcium sulfide = 2.16g

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Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water. Give an
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Answer:

2. 181.25 K.

3. 0.04 atm.

Explanation:

2. Determination of the temperature.

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Volume (V) = 25 L

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Temperature (T) =?

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3. Determination of the pressure.

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The pressure can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

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Divide both side by 5000

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P = 0.04 atm

Thus, the pressure is 0.04 atm

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3 years ago
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