Consider the following balanced reaction. how many grams of water are required to form 75.9 g of hno3? assume that there is excess no2 present. the molar masses are as follows: h2o = 18.02 g/mol, hno3 = 63.02 g/mol.

10.85 g of water

Explanation:

First we write the balanced chemical equation

Then we calculate the number of moles of nitric acid produced

n(HNO3) =

According to the balanced equation, water needed in moles is always half the number of moles of HNO3 produced. So since we will produce 1.2044 mol of HNO3, we will need 0.6022 mol of water. Now to calculate what mass that is:

mass(water)=number of moles*molar mass=0.6022mol*18.02g/mol=10.85g

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

1.solid

2.carbon dioxide

3.helium