High School

If 76.4 grams of [tex]$NH_4Cl$[/tex] are used, how many grams of water would theoretically be produced?

A. 25.70 g
B. 42.5 g
C. 20.67 g
D. 38.2 g

Answer :

The mass (in grams) of water, H₂O that would theoretically be produced is 25.70 g

How do I determine the mass of water that would be p roduced?

We'll begin by writing the balanced equation for the reaction of NH₄Cl to produce water. This given below:

NH₄Cl + NaOH -> NH₃ + NaCl + H₂O

  • Molar mass of NH₄Cl = 53.5 g/mol
  • Mass of NH₄Cl from the balanced equation = 1 × 53.5 = 53.5 g
  • Molar mass of H₂O = 18 g/mol
  • Mass of H₂O from the balanced equation = 1 × 18 = 18 g

From the balanced equation above,

53.5 g of NH₄Cl reacted to produce 18 g H₂O

Now, we shall determine the mass of water, H₂O produced from the reaction of 76.4 g of NH₄Cl. Details below:

From the balanced equation above,

53.5 g of NH₄Cl reacted to produce 18 g H₂O

Therefore,

76.4 g of NH₄Cl will react to produce = (76.4 × 18) / 53.5 = 25.70 g of H₂O

Thus, the mass of water, H₂O produced is 25.70 g

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