Asample of hydrogen gas has a density of g/l at a pressure of 0.799 atm and a temperature of 47 °c. assume ideal behavior.

The density of the given sample of hydrogen gas is 0.061 g/L

Explanation:

Assuming ideal gas behavior, the equation follows:

PV = nRT

Rearranging the above equation:

We know that:

Rearranging the above equation:

    ......(1)

We are given:

P = pressure of the gas = 0.799 atm

d = density of hydrogen gas = ?

R = Gas constant =

T = temperature of the gas =

M = molar mass of hydrogen gas = 2 g/mol

Putting values in equation 1, we get:

Hence, the density of the given sample of hydrogen gas is 0.061 g/L

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the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.