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mars1129 [50]
4 years ago
5

A certain atom has 26 protons 26 electrons and 30 neutrons. its mass number is

Chemistry
1 answer:
Margaret [11]4 years ago
8 0
26 the mass number is always the proton count
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Answer:

T = 246 K

Explanation:

Given that,

Number of moles, n = 0.750 mol

The volume of the cylinder, V = 6850 mL = 6.85 L

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We need to find the temperature of the gas stored in the cylinder. We know that,

PV= nRT

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So,

T=\dfrac{PV}{nR}\\\\T=\dfrac{2.21\times 6.85}{0.75\times 0.0821}\\T=245.85\ K

or

T = 246 K

So, the temperature of the gas is equal to 246 K.

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