Question

A massa molar de H2SO4 (ácido sulfúrico), NH3 (amônia) e NaOH (soda cáustica), respectivamente são: a) 49g/mol, 15g/mol e 40g/mol. b) 98g/mol, 17g/mol e 40g/mol. c) 50g/mol, 17g/mol e 42g/mol. d) 40g/mol, 17g/mol e 98g/mol.

Answer 1

Resposta:b) 98g/mol, 17g/mol e 40g/mol.

Explicação:

H2SO4--->1.2+32.1+16.4--->2+32+64--->98 g/mol

NH3--->14.1+1.3--->14+3--->17 g/mol

NaOH---->23.1+16.1+1.1--->23+16+1--->40 g/mol