2 Al + 3 H,SO, 6. How many grams of hydrogen gas are produced with 0.88 moles of aluminum sulfate? 3 H, + Al,(SO,de 0.88 moles Al(SO), 3 moles H. 6 g H. 0.88 moles Al (SO), 1 mole H.

DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: 2C6H5 Cl + C₂2 HOC13 → C14H9 Cl5 + H₂O chlorobenzene chloral DDT In a government lab, 1167 g of chlorobenzene is reacted with 470 g of chloral. a. What mass of DDT is formed, assuming 100% yield? g b. Which reactant is limiting? Which is in excess? is limiting. Mass= is in excess. c. What mass of the excess reactant is left over? g in excess d. If the actual yield of DDT is 285.0 g, what is the percent yield? Percent yield = % Mass=

a. A  2.0 M potassium chloride solution is prepared by dissolving 37.3 g of potassium chloride in distilled water. What is the volume of the solution formed?(Relative atomic masses: K = 39.1, Cl = 35.5) b. What volume of 0.05 M Na2CO3 solution can be prepared from 2.65 g of Na2CO3?(relative atomic mass Na=23.0, C=12.0, O=16.0) c. Which of the following apparatus is usually used to deliver 25.0 cm3 of a solution into a conical flask?A. BuretteB. PipetteC. Beaker D. Volumetric flask

14. The fertilizer ammonium sulfate [(NH,),SO4] is prepared by the reaction between ammonia (NH3) and sulfuric acid: 2NH;(g) + H,SO,(aq) --->(NH,),SO,(aq) How many kilograms of NHz are needed to produce 1.00 x 10° kg of (NH,),SO,?

6. Consider the following chemical reaction: 2 Cr(OH)3(aq) >Cr₂O3(s) + 3H₂0(1) 12.00 moles of chromium (III) hydroxide is decomposed. Calculate moles of the water produced. O 18.00 moles O 1.500 moles O 4.00 moles O 12.00 moles

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General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning Cryolite, Na, AIF,(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al, 0, (s)+NAOH(1)+HF(g) Na, AIF, + H, O(g) If 12.9 kg of Al,0,(s), 56.4 kg of NaOH(1), and 56.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: kg Na, AlF, Which reactants will be in excess? NaOH Al, O3 HF What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books

For the following balanced equation:  CH4 + 4 Cl2 ==> CCl4 + 4 HCl Determine the number of moles of HCl that  can be made from 1.49 moles of CH4? Answer to 2 decimal places.

37. Nitrogen gas reacts with oxygen and water to form nitric acid: 2Nde) + 502ie) + 2H,Oa →4HNO30: What is the mole ratio of oxygen and nitric acid? а. 5:4 b. 2: 5 с. 5:2 d. 1:2

#11 please