Greetings,
timus221:, I'd like to welcome you and all the new students to the Chemical Forums. But I'd like to ask you to trouble yourself to read our
Forum Rules{click}. You already accepted them when you signed up for our forum, and they apply to you, whether you agree with them or not, or even if you're unaware of them.
Our rules specify that we want to see your work, and then, we want to give you hints, so that you learn for yourself. It doesn't matter if you're a new student, or a dedicated amateur, we need to know what you know, and what you think, so we know what level you're at, so we can give useful hints, so your knowledge can grow.
Let's get started:
We have 5g of SiO2 and 25g 30% solution of NaOH. Calculate a mass of product. Please help
SiO2+2NaOH =Na2SiO3+H2O
You've been given an equation, that relates products to reactants. You've been given mass, of reactants, and need mass of products. But the units of your equation aren't mass. You will have to convert back and forth. You will also have to be sure you have enough of both reactants, you can only get as much product as you have enough reactant -- but which one do you have the least of?
There are tasks usually covered in class notes and text books, before these problems are assigned. Why not try a few of the steps suggested, and show us what you're able to figure out?
ChemBuddy | 
Chem Reddit | 
Topic: Product mass (Read 2505 times)