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3 years ago

Calcium is a metal.

Chemistry

1 answer:

kirza4 [7]3 years ago

3 0

Answer:

22.22 g

Explanation:

The balanced reaction equation is;

Ca(s) + 2HCl(aq) → CaCl2(aq) + H2(g)

Number of moles of calcium reacted = 8.02g/40.1g/mol = 0.2 moles of Calcium

From the reaction equation;

1 mole of Ca yields 1 mole of CaCl2

Hence 0.2 moles of Ca also yields 0.2 moles of CaCl2

Mass of calcium chloride produced = number of moles * molar mass

Mass of calcium chloride = 0.2 moles of CaCl2 * 111.1g/mol = 22.22 g

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Explanation:

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larisa86 [58]

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3 years ago

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Answer:

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Explanation:

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$p^o = \chi_{O_2} p$

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$S_1 = k_H \chi_{O_2} p$

Solve for $k_H$ :

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Now we're given that at an altitude of 12,000 ft, the atmospheric pressure is now:

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3 years ago

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Answer:

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Explanation:

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