H+ refer to acid solution HCI (aq). the presence of H+ ions in a solution cause : b. a reaction with magnesium to release hydrogen gas.
the equation H+ react with magnesium to release hydrogen gas is Mg + 2H + --> Mg(2+) H2(g)
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Answer:
584.2 g
Explanation:
Hello there!
In this case, since we know the 20% of the atoms correspond to sodium, we can compute the total atoms as shown below:

Which are also equal to 1 mol and the Avogadro's number of sodium chloride with a molar mass of 58.44 g/mol; thus, the grams of salt turn out to be:

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This solved in according to Charles law
V1/T1=V2/T2
So the answer is 8.51 L