A 38.9 mL aliquot of weak base that has a concentration of 0.562 M will be titrated with 0.37 M HCl. Calculate the pH of of the solution upon the addition of 13.77 mL of HCl. The Kb of the base is 4.5×10-6.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?