2 years ago

How many grams are in 1 mole of Ar?

Chemistry

1 answer:

Ilia_Sergeevich [38]2 years ago

3 0

Answer: 39.948 grams

Explanation:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Ar, or 39.948 grams

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How many moles of Boron (B) are in 5.03 x 1024 B atoms?

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Hey there!:

Number of moles = ( number of atoms / 6.023*10²³ atoms )

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Therefore:

Number of moles B = 5.03*10²⁴ / 6.023*10²³

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3 years ago

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2 years ago

A 2.2 M solution is made by with 0.45 moles of a solute. What is the final volume of this solution?

Savatey [412]

Answer: The final volume of this solution is 0.204 L.

Explanation:

Given: Molarity of solution = 2.2 M

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$Molarity = \frac{no. of moles}{Volume (in L)}$

Substitute the values into above formula as follows.

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2 years ago