How many grams of Br are in 345g of CaBr2?

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Morganmadison1844idn Morganmadison1844idn

30-06-2021
Chemistry

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How many grams of Br are in 345g of CaBr2?

Sagot :

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Jufsanabriasaidn Jufsanabriasaidn · Answer 1 · 2021-07-05T20:14:01-04:00

Answer:

276g of Br are present

Explanation:

To solve this question we need to find the moles of CaBr2 using its molar mass -CaBr2: 199.89g/mol-. As 1 mole of CaBr2 contains 2 moles of Br we can find the moles of Br and its mass:

Moles CaBr2:

345g * (1mol/199.89g) = 1.7259 moles CaBr2

Moles Br:

1.7259 moles CaBr2 * (2mol Br / 1mol CaBr2) = 3.4519 moles Br

Mass Br -Molar mass: 79.904g/mol-

3.4519 moles Br * (79.904g/mol) = 276g of Br are present

Sagot :

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