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quester [9]
3 years ago
6

Does neon have a larger atomic radius than argon

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
6 0

Answer:

No

Explanation:

Argon has a larger atomic radius

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Answer: 10.2 grams

Explanation:

The balanced chemical reaction is :

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According to the ideal gas equation:

PV=nRT

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n=\frac{PV}{RT}=\frac{0.97\times 12.0}{0.0821\times 292}

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According to stoichiometry:

2 moles of hydrogen are generated by = 1 mole of CaH_2

Thus 0.48 moles of hydrogen are generated by =\frac{1}{2}\times 0.48=0.24 moles of CaH_2

Mass of  CaH_2=moles\times {\text {Molar mass}}=0.24mol\times 42g/mol=10.2g

Thus 10.2 grams of CaH_2 are needed to generate 12.0 L of hydrogen gas if the pressure of hydrogen is 740. torr at 19°C

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What principal quantum number refers to:
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