\(M_{KNO_3}=39+14+16\cdot3=101g/mol\\ M_{H_2SO_4}=1\cdot2+32+16\cdot4=98g/mol\\ M_{CuSO_4}=64+32+16\cdot4=160g/mol\\ M_{Al\left(OH\right)_3}=27+\left(1+17\right)\cdot3=78g/mol\\ M_{NaCl}=23+35,5=58,5g/mol\)
\(M_{KNO_3}=39+14+16\cdot3=101g/mol\\ M_{H_2SO_4}=1\cdot2+32+16\cdot4=98g/mol\\ M_{CuSO_4}=64+32+16\cdot4=160g/mol\\ M_{Al\left(OH\right)}_{_3}=27+\left(1+16\right)\cdot3=78g/mol\\ M_{NaCl}=23+35,5=58,5g/mol\)