Question

Calcule a massa molecular das seguintes substâncias
1.NaCi
2.NAOH
3.Ca(SO4)3
4.CaCo3
5.C6H12O6
6.C4H6O6
7.HCI
8.Ca(OH)
9.K2Cr2O7
10.Mg(PO4)2​

Answer 1

Resposta:Segue as contas abaixo na explicação,para saber as Massas Moleculares dos Elementos Químicos está na Tabela Periódica

Explicação:

1.NaCl--->23.1+35,5.1--->23+35,5--->58,5 g/mol

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

3.CaSO4--->40.1+32.1+16.4--->40+32+64--->136 g/mol

4.CaCO3--->40.1+12.1+16.3--->40+12+48--->100 g/mol

5.C6H12O6--->12.6+1.12+16.6--->72+6+96--->180 g/mol

6.C4H6O6--->12.4+1.6+16.6--->48+6+96--->150 g/mol

7.HCI--->1.1+35,5.1--->1+35,5--->36,5 g/mol

8.Ca(OH)2--->40.1+16.2+1.2--->40+32+2-->74 g/mol

9.K2Cr2O7--->39.2+52.2+16.7--->78+104+112--->294 g/mol

10.Mg3(PO4)2​--->24.3+31.2+16.8--->72+62+128--->262 g/mol