Hi I am relatively new to chemistry and got a bit of help earlier (thanks)
I have no idea in how to get the answer to these can anyone help please.
Q1
SiO2 + 4HF
SiF4 + 2H2O
How many grams of HF would i need to react with 150.0g of Silica?
Q2
What volume of a solution of HCI with a concentration of 0.25 mol.L-1, contains 0.50 mol of the HCI?
Q3
What is the molar concentration of the solute in each of the following solutions
1.55 lires containing 153g of Na2CO3?
0.25 litres containing 1.675g of Na2C2O4?