A sample of the compound M2SO4 weighing 0.1561 grams reacts with barium chloride and yields 0.3193 gram BaSO4. What is the balanced equation? What is the molar mass and identity of the metal M

Antimony is alloyed with lead to increase the rigidity of components used in the construction of lead storage batteries.1.304 g of a particular metallic alloy, compounded of only Pb and Sb, can be quantitatively converted into a 1.511-g mixture of the oxides PbO2 and Sb2O4.What was the percentage (by mass) of antimony in the alloy?

In an experiment to determine the empirical formula of magnesium chloride, 0.50 g of magnesium ribbon was taken in a beaker and a few drops of HCl was added until all the Mg reacted with the acid liberating the hydrogen gas. The reaction completion was noted by observing that the bubbling stopped and no solid Mg was seen in the beaker. The beaker was heated to remove water and the dried magnesium chloride was weighed and found to be 1.99 g. What is the empirical formula for magnesium chloride based on this experiment?

(b) An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A. Then 10.00 mL of Solution A is diluted with water to 50.00 mL. The final solution is Solution B. 20.00 mL of Solution B contains 4.408 x 1020 sodium ions. (NA = 6.022 x 1023 mol-1) Calculate the mass of Na3PO4(s) that was dissolved to form Solution A.

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4 HCl(aq) + MnO,(s) → MnCl, (aq) + 2 H,O(1) + Cl, (g) > A sample of 34.9 g MnO, is added to a solution containing 43.1 g HCI. What is the limiting reactant? HCl O MnO2 What is the theoretical yield of Cl, ?

The amount of mols of hydrochloric acid in 15 mL of 6.0 M HCl(aq) is 1.80 g of cadmium reacts with 0.530 g of sulfur to produce cadmium sulfide as shown by the equation, Cd(s) + S(s) → CdS(s)  Which is the limiting reactant?

Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that had been diluted by mixing with table salt (sodium chloride). When 2.00 g of the mixture undergoes combustion, 3.97 g of CO₂ is produced. What is the mass percent of morphine in the mixture?

Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). How many grams of phosphorus trichloride can be formed from 419.7 grams of P₄ based on the balanced chemical equation?