How many miles of ammonia are need to produce 45.5 grams of water

1.69 moles of ammonia are needed to produced 45.5 g of water.

Explanation:

Given data:

Mass of water = 45.5 g

Moles of ammonia required = ?

Solution:

Chemical equation:

4NH₃ + 5O₂ → 4NO + 6H₂O

Number of moles of water:

Number of moles = mass/ molar mass

Number of moles =   45.5 g/ 18 g/mol

Number of moles = 2.53 mol

Now we will compare the moles of water with ammonia.

                         H₂O                :           NH₃

                            6                 :              4

                        2.53                :              4/6×2.53 = 1.69 mol

1.69 moles of ammonia are needed to produced 45.5 g of water.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error