2 years ago

Given:

Chemistry

1 answer:

faltersainse [42]2 years ago

5 0

Answer:

6moles of Mg

Explanation:

The reaction expression is given as:

BO₃ + 3Mg → 3MgO + B

Given:

Number of moles of B produced = 2 moles

Unknown:

Number of moles of Mg required = ?

Solution:

From the balanced reaction expression:

1 mole of B is produced from 3 moles of Mg

2 moles of B will be produced from 2 x 3 = 6moles of Mg

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Answer:

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Explanation:

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1.18 x 3 = 3.55 
find ratio of F to F in each compound
. according to law of multiple proportions that the masses of one element which combine with a fixed mass of the second element are in a ratio of whole numbers.
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