$x$ has a molecular weight of $10\frac{g}{m}$ole. How many grams would be required to make

$250mL$ of a $0\mathrm{.}5M$ solution? $(5)$

You have been asked to make $200mL$ of $0\mathrm{.}25M$ sucrose. All you have available is $2M$

sucrose. How would you make this solution? $(5)$

How much of a $3$MNaCl solution would be required to make $50L$ of a $\mathrm{.}25M$ solution?

$(5)$