How many grams of oxygen are needed to produce 5.40 g of water according to this equation?   2 H2 (g) + O2 (g) ⟶⟶ 2 H2O (l)

39.6 g of carbon dioxide (CO2) is dissolved in a 2 L of water.   1 L of water is added.  What is the new volume? What is the new molarity?

What is the molarity of a solution in which 23.1 g of sodium sulfate (Na2SO4) is dissolved in enough water to make 250. mL of solution? 0.0922 M 0.652 M 0.163 M 0.205 M

How many grams of lead(II) nitrate, Pb(NO3)2, are needed to prepare 750. mL of 0.785 M solution?

m101 G periodic table - Google Search A How many moles of lithium hydr X + Question 7 of 8 Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in the reaction below. How many molecules of HCI would have to be present to form 59.04 g of MgCl2? Mg(OH):(s) + 2 HCI(aq) → 2 H2O(1) + MgCl2(aq) DELL

A chemist adds 0.25 L of a 9.4M silver perchlorate (AgClO.) solution to a reaction flask. Calculate the mass in kilograms of silver perchlorate the chemist has added to the flask. Round your answer to 2 significant digits. kg x10 Ar

If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) + SO3(g) If you are heating a sample of CoSO4·6H2O and this reaction occurs along withdehydration, what will happen to the experimental percent water? Explain your answer.

How many moles of NO2 would be required to produce 2.46 moles of HNO: in the presence of excess water in the following chemical reaction? 3 NO:(g) + H.O (1) → 2 HNO:(g) + NO(g)

What volume of each of the following solutions contains the indicated amount of dissolved solute? 45.0 gg solute in 0.486 M Fe(ClO3)Fe(ClO3) 3

How many grams of hydrogen are needed to produce 1.82 g of water according to this equation? 2 H2 + O2 → 2 H2O