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MakcuM [25]
3 years ago
14

What is the volume of 4.5 moles of H2 at STP?

Chemistry
1 answer:
lions [1.4K]3 years ago
6 0
1.0 mole ---------- 22.4 at STP
4.5 moles --------- ?

4.5 * 22.4 / 1.0

= 100.8 L of H₂
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When the pressure of a gas doubles, the new volume
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Answer:

yes it does

Explanation:

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2 years ago
A bar of gold is 5.0mm thick, 10.0cm long and 2.0cm wide. It has a mass of exactly 193.0g. What is the desity of gold?
Tanzania [10]
<h3>Answer:</h3>

19.3 g/cm³

<h3>Explanation:</h3>

Density of a substance refers to the mass of the substance per unit volume.

Therefore, Density = Mass ÷ Volume

In this case, we are given;

Mass of the gold bar = 193.0 g

Dimensions of the Gold bar = 5.00 mm by 10.0 cm by 2.0 cm

We are required to get the density of the gold bar

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Volume =  0.50 cm × 10.0 cm × 2.0 cm

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Step 2: Density of the gold bar

Density = Mass ÷ volume

Density of the gold bar = 193.0 g ÷ 10 cm³

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Thus, the density of the gold bar is 19.3 g/cm³

3 0
2 years ago
You shake a can of soda and open it, which cause the pressure to decrease. what happens to the volume of the CO2. the soda​
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Explanation:

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