Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.513 g copper metal was obtained as an'experimental result according to the equation: CuSOg(aq) + Zn(s) Cu(s) + ZNSO4(aq) Before the experiment was carried out the following calculation was completed to predict the maximum amount of copper that could be isolated. The answer was 0.506 g of Cu. mol Cuso, mol Cu g Cu Cuso, 1 mol Cuso, 1 mol Cu 63.55 g Cu 1 mol Cu 159.62 g CuSO, 1 mol CuSO, What is the percent yield? report your answer to the tenths place, L.e. one decimal place

A student pipets 18 mL of a 0.0459 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes to the mark. What is the concentration of the resulting solution?

In an experiment, a student combines 75.0 mL of a 0.200 M iron (III) chloride solution with 125.0 mL of a 0.250 M sodium carbonate solution. Write a balanced equation for the reaction. What is the limiting reactant? What is the theoretical yield of sodium chloride (in grams)? How many grams of sodium chloride need to be produced in the experiment in order to achieve a yield of 93.75%?

A 2.85 g sample of NaCl and CaCl2 was dissolved in water, and an excess of AgNO3 was added to precipitate all of the chloride ions.The AgCl was collected and dried, and weighed to give 7.20 g of AgCl. How much NaCl and CaCl2 was in the sample? i g NaCl g CaCl2

Calculate the molarity of Cl− anions in the chemist's solution.   Be sure your answer is rounded to 2 significant digits.

0.8888 g a mixture contains calcium chloride and potassium nitrate. To determine the % of each compound, silver nitrate was added to these solutions to precipitate all the chlorine in a form of silver chloride. 1.885 grams of silver chloride was precipitated, washed and dried. Calculate the % of calcium chloride in the sample.

A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 87.2 mg of FeBr, into a 250. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to 3 significant digits. mol L

0.248 g An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate. Identify the solid in the balanced equation. O (NH,);SO, O Pb(NO,)2 NH,NO3 There is no solid formed when the two solutions are mixed. PBSO, A 3.8-mol sample of KCIO, was decomposed according to the equation. SAMSUNG & $ % 7 8. 9 4 t y

A chemist prepares a solution of iron(III) bromide (FeBr,) by measuring out 1.0 g of FeBr, into a 100. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. mol L

When (NH4 )2SO4 , and BaCl2 are mixed, a precipitate will form. Which ions should act as reactants in the net ionic equation?