Write out the reaction:
ZN + 2 HCl --> ZNCl2 + H2
Covert g of H2 gas produced to moles:
0.15g of H2*(1 mole/2.016g)= moles of H2
moles of H2=moles of Zn
moles of Zn*(65.37g/mol)= g of Zn
Answer contains two significant figures
Conversely, this could have just been combined into one step;
0.15g of H2*(1 mole H2/2.016g)*(1 mol of Zn/1 mol of H2)*(65.37g Zn/mol)=g of Zn
what mass of zinc dissolved in dilute HCL will produce 0.15g of hydrogen ?
can you explain the steps to sloving this question please
1 answer
1 answer