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Alexus [3.1K]
2 years ago
12

How many moles are in 20 grams of argon​

Chemistry
1 answer:
Sladkaya [172]2 years ago
5 0

Answer:

There are 0.5 mole in 20g of argon.

Explanation:

40 g of argon = 1mole

Then 20g of argon is,

→ 1/40 × 20

→ 0.5 mole

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Use the following equation to answer the questions below:
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Explanation:

The equation of the reaction is given as;

Be + 2HCl → BeCl2 + H2

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Converting to mass;

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9.01g of Be produces 79.92g of BeCl2

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What is the mass of hydrochloric acid required to produce 25.0g of beryllium chloride? g

Converting 25.0g of beryllium chloride to moles;

Number of moles = Mass / Molar mass

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x mol of HCl would produce 0.3128 mol of BeCl2

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What is the mass of hydrogen gas produced when 25.0g of beryllium chloride is also produced? g

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1 mol of H2 is produced alongside 1 mol of BeCl2

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0.3128 mol of H2 would also be produced alongside 0.3128 mol of BeCl2

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