The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

need help !!!

got these questions i dont understand

minerals containing zinc are important to the human body,since zn2+ ion os important in many enzymes. zinc sulphate can be used as a dietary supplement in cases of zinc deficiency. the compound crystalises as a hydrated salt, ZnSO4.7H20
and is soluble in water.
the recomended daily allowance (rdA) of zinc if 15.2mg (0.0152g)

1)calculate the relative molecular mass of hydrated zinc sulphate crystals ZnS04.7H20

2)calculate the mass of hydrated zinc sulphate crystals which would be needed to be taken to obtain the rda for zinc

3)normally this is taken via a 5cm3 dose of an aqueous soloution of hydrated zinc sulphate ZnSO4.7H2O. Calculate the concentration of this solution

please help i have no idea how to do these questions

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you