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2 years ago

How many grams of water contain 2.50 x 10^24 atoms of hydrogen?

Chemistry

1 answer:

Mama L [17]2 years ago

4 0

The mass of water that contains 2.5×10²⁴ atoms of Hydrogen is 74.79 g

<h3>Avogadro's hypothesis </h3>

From Avogadro's hypothesis,

6.02×10²³ atoms = 2 g of H

Therefore,

2.5×10²⁴ atoms = (2.5×10²⁴ × 2) / 6.02×10²³

2.5×10²⁴ atoms = 8.31 g of H

<h3>How to determine the mass of water </h3>

1 mole of water H₂O = (2×1) + 16 = 18 g
Mass of H in 1 mole of water = 2 g

2 g of H is present in 18 g of water.

Therefore,

8.31 g of H will be present in = (8.31 × 18) / 2 = 74.79 g of water.

Thus, 2.5×10²⁴ atoms of Hydrogen is present in 74.79 g of water.

Learn more about Avogadro's number:

brainly.com/question/26141731

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Answer:

<h2>100°C is the boiling point of water in degrees Celsius</h2>

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3 years ago

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Answer:The correct answer is option (C).

Explanation:

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3 years ago

What is amu of 99 % H-1, .2% H-1 and .8% H-3

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The average atomic mass of your mixture is 1.03 u .

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Thus,

0.99 × 1.01 u = 0.998 u

0.002 × 2.01 u = 0.004 u

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3 years ago

How reactive is an atom of Sodium(Na) and why?

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The correct option is this: SODIUM IS VERY REACTIVE BECAUSE IT DOES NOT HAVE A FULL VALENCE SHELL.
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3 years ago

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