If 4.00 g of nacl react with 10.00 g of agno3, what is the excess reactant?

Answer : The excess reagent is,

Explanation :

First we have to calculate the moles of and .

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

From the balanced reaction we conclude that

As, 1 mole of react with 1 mole of

So, 0.068 moles of react with 0.068 moles of

From this we conclude that, the moles of are less than the NaCl. So, is a limiting reagent because it limits the formation of products and is an excess reagent.

Hence, the excess reagent is,

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.