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2 years ago

How many moles are there in 1 mole of argon?

Chemistry

1 answer:

disa [49]2 years ago

5 0

the atomic mass of argon is 39.948. That means that one mole of argon weighs 39.948 grams (39.948 g/mol).

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H 2 O, CO 2 , and C 12 H 22 O 11 are all examples of chemical _____.

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2 years ago

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1.00 L of a gas at STP is compressed to 473mL. What is the new pressure of gas?

Ratling [72]

Hello!

1.00 L of a gas at STP is compressed to 473 mL. What is the new pressure of gas?

We have the following data:

Vo (initial volume) = 1.00 L

V (final volume) = 473 mL → 0.473 L

Po (initial pressure) = 1 atm (pressure exerted by the atmosphere - in STP)

P (final pressure) = ? (in atm)

We have an isothermal transformation, that is, its temperature remains constant, if the volume of the gas in the container decreases, so its pressure increases. Applying the data to the equation Boyle-Mariotte, we have:

$P_0*V_0 = P*V$

$1*1 = P*0.473$

$1 = 0.473\:P$

$0.473\:P = 1$

$P = \dfrac{1}{0.473}$

$\boxed{\boxed{P \approx 2.11\:atm}}\:\:\:\:\:\:\bf\green{\checkmark}$

Answer:

The new pressure of the gas is 2.11 atm

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3 0

3 years ago

How many moles are in 442.8 g of strontium carbonate (SrCO3)?

GuDViN [60]

Answer:

3 moles

Explanation:

SrCO3

Mass = 442.8g

Molar mass = (87.6 + 12 * [16*3]) = 147.6g/mol

Number of moles = mass / molar mass

Number of moles = 442.8 / 147.6

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2 years ago

In an experiment designed to determine the concentration of Cu 2 ions in an unknown solution, you need to prepare 100 mL of 0.10

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Answer:

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Explanation:

We need to prepare 100 mL (0.100 L) of a 0.10 M CuSO₄ solution. The required moles of CuSO₄ are:

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0.010 mol × (159.61 g/mol) = 1.6 g

We should use 1.6 grams of CuSO₄.

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2 years ago

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Serhud [2]

Answer:

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2 years ago

How many moles are there in 1 mole of argon?​

How many moles are there in 1 mole of argon?