Calculate the mass of sodium chloride that is formed from 4.5 g of sodium

1. Let’s compose the equation of the chemical reaction

2Na + Cl2 = 2NaCI

2. Let’s calculate what mass of NaCl was formed

for this, over Na in the formula we write 4.5 g, under it – 2 * 23 g, and over NaCl – x g, under it 2 * (23 + 35.5) g

make up the proportion

4.5 / 46 = x / 58.5

hence x = 4.5 * 58.5 / 46 = 5.723 g

Answer: 5.723 g NaCl