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Effectus [21]
3 years ago
6

3. Calculate the mass in grams of 2.75 moles of Copper.

Chemistry
1 answer:
hichkok12 [17]3 years ago
3 0

Answer: 174.6g

Explanation:

Number of Moles= mass/molar mass

Therefore mass= Number of moles x molar mass

Molar mass of copper= 63.5g/mol

Number of moles= 2.75mol

Mass= 63.5 x 2.75

Mass=174.6g

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If a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 30 years?
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A rigid vessel contains water at 0.15 MPa (at 25 °C). The vessel is heated to the critical point of water. Calculate the fractio
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Answer:

0.8078 Kg

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You have a 25.2 L sample of gas at 1.25 atm and 25.0 degrees Celsius. How many moles are present in this gas. For your answer, p
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Answer:

  • <u>1.29 mol</u>

Explanation:

This is a direct application of the equation for ideal gases.

  • PV=nRT

Where:

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3 years ago
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