Answer to Question #244405 in Physical Chemistry for Dez

Question

A reaction of 22.85 g of sodium hydroxide with 20.82 g of hydrogen chloride produces 10.29 g of water and x g of sodium chloride

Answer 1

NaOH + HCl → NaCl + H₂O

To find mass of NaCl produced we need to determine the moles of water produced. As when 1 mole of water is produced, 1 mole of NaCl is also produced we can find moles of NaCl and its mass, thus:

Moles H₂O -Molar mass: 18.015g/mol-

10.29g * (1mol / 18.015g) = 0.5712 moles H₂O = 0.5712 moles NaCl

Now, the mass of NaCl -Molar mass: 58.44g/mol- is:

0.5712 moles NaCl * (58.44g / mol) =

33.38g of NaCl are produced

0.03338kg of NaCl are produced