Vraag 12

Voorbeelden van een juiste berekening zijn:

\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,(\text{g})\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,()\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2\,(g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2(g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2(g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2(g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1{,}58\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=158\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1.58\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=158\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{18{,}0}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{180}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{1{,}41\times10^3\times2{,}02}{18,0}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{1{,}41\times10^3\times202}{18,0}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{1{,}41\times10^3\times2,02}{18,0}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{141\times10^3\times2,02}{18,0}(\times\frac{2}{2})=1,58\cdot10^2(~g)\frac{1,41 \times 10^{3} \times 2,02}{18,0}(\times \frac{2}{2})=1,58 \cdot 10^{2}(\mathrm{~g})

of

1{,}411{,}41~1{,}41~k$1{,}41 \mathrm{~kg}kg water is\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(\text{mol})\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(\text{mol}m)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(\text{mol}mo)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(\text{mol}mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1\,(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1(mol)\frac{1{,}41 \times10^{3}}{18{,}0}=7{,}833\cdot10^1(mol)$\frac{1{,}41 \times 10^{3}}{18{,}0}=7{,}833 \cdot 10^{1}(\mathrm{mol}).

Er kan dus7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,(\text{g})7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,()7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2\,(g)7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2(g)7{,}833\cdot10^1\times2{,}02(\times\frac{2}{2})=1{,}58\cdot10^2(g)$7{,}833 \cdot 10^{1} \times 2{,}02(\times \frac{2}{2})=1{,}58 \cdot 10^{2}(\mathrm{g})waterstof ontstaan.

of

De massaverhouding$\mathrm{H}_{2}: \mathrm{H}_{2} \mathrm{O}=\frac{2{,}02}{18{,}0}=1{,}122 \cdot 10^{-1}.

Er is dus1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,(\text{g})1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,()1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2\,(g)1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2(g)1{,}122\times10^{-1}\times1{,}41\times10^3=1{,}58\cdot10^2(g)$1{,}122 \times 10^{-1} \times 1{,}41 \times 10^{3}=1{,}58 \cdot 10^{2}(\mathrm{g})waterstof ontstaan.

Opmerking

Wanneer een onjuist antwoord op vraag 12 het consequente gevolg is van een onjuist antwoord op vraag 11, dit antwoord op vraag 12 goed rekenen.