Question

In: Chemistry

For the following reaction, 3.46 grams of hydrochloric acid are mixed with excess oxygen gas. The...

For the following reaction, 3.46 grams of hydrochloric acid are mixed with excess oxygen gas. The reaction yields 0.728 grams of water. hydrochloric acid (aq) + oxygen (g) water (l) + chlorine (g) What is the theoretical yield of water ? What is the percent yield of water ?

Solutions

Expert Solution

4 HCl +   O2 -------------------> 2 H2O + 2 Cl2

142 g                                        36 g

142 g HCl -------------------> 36 g H2O

3.46 g HCl ------------------> x g H2O

x = 3.46 x 36 / 142

x = 0.877 g

theoretical yield of water = 0.877 g

percent yield of water   = (0.728 / 0.877) x 100

                                   = 83.0 %


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