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FrozenT [24]
2 years ago
14

In the world of chemisty, a 'mole is a number of something ... a very lary large number of something.

Chemistry
1 answer:
yulyashka [42]2 years ago
5 0
Just as a dozen is 12 of something, a mole is about 6.02 * 10^23 of something .
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For the reaction, calculate how many grams of the product form when 14.4 g of Br2 completely reacts. Assume that there is more t
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Answer:

The answer to your question is 21.45 g of KBr

Explanation:

Chemical reaction

                               2K + Br₂   ⇒   2KBr

                                       14.4            ?

Process

1.- Calculate the molecular mass of bromine and potassium bromide

Bromine = 2 x 79.9 = 159.8g

Potassium bromide = 2(79.9 + 39.1) = 238 g

2.- Solve it using proportions

              159.8 g of Bromine ------------ 238 g of potassium bromide                    

                14.4 g of Bromine  ------------  x

                        x = (14.4 x 238) / 159.8

                        x = 3427.2 / 159.8

                        x = 21.45g of KBr

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