2.4 moles HF
Work Step by Step
From the left side of the equation we see: Na2SiO3 + 8HF --> Therefore, we need 8 moles of HF for each mole of Na2SiO3. If we have 0.3 mole Na2SiO3 then we would need 0.3*8 = 2.4 moles HF
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.