Question

Consultando a tabela periodica calcule a massa molar a) hbr , b) nacl , c) h2o , d al3(so4)3 , e) ch4 , f) c6h12o2 , g) fe2(co3)3 , h) h2so4 i) ba(oh)2 , j) co2 , k) h3po4 , l) hci , m) ca (ph,)2

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação:

a) HBr--->1.1+80.1--->1+80--->81 g/mol

b) NaCl--->23.1+35,5.1--->23+35,5--->58,5 g/mol

c) H2O--->1.2+16.1--->2+16--->18 g/mol

d Al2(SO4)3--->27.2+32.3+16.12--->54+96+192--->342 g/mol

e) CH4--->12.1+1.4--->16 g/mol

f) C6H12O6--->12.6+1.12+16.6--->72+12+96--->180 g/mol

g) Fe2(CO3)3--->56.2+12.3+16.9--->112+36+144--->292 g/mol

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

i) Ba(OH)2--->137.1+16.2+1.2--->137+32+2--->171 g/mol

j) CO2--->12.1+16.2--->12+32--->44 g/mol

k)H3PO4--->1.3+31.1+16.4--->3+31+64--->98 g/mol

l) HCl--->1.1+35,5.1--->1+35,5--->36,5 g/mol

m) Ca3(PO4)2--->40.3+31.2+16.8--->120+62+128--->310 g/mol