The solution is given below.
all 1. a. Balance the following equation _Mg(OH)2() + __HCl(g) → MgCla(s) +_ H20(1) b. What...
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 and 10.00 g of HCl are reacted, how many grams of MnCl2 can be produced? Show all calculations 2. Consider the following unbalanced equation: NH4NOs(aq) + Na PO4(aq)(NH4)3PO4(aq NaNOs(aq) Assuming you start with 50.0 g of NHNOs and 50.0 g of NasPO4, which is the limiting reagent? What is the theoretical yield (g) of ammonium phosphate? a....
concentration of Ca(OH)2 in the solution! 7. Given the following equation: 2 Nacio3 B 2 NaCl + 3 O2, if 12.00 moles of NaClO3 reacted in the reaction; a) How many grams of O2 produced? B) How many grams of NaCl are produced when 80.0 grams of O2 are produced? 8. Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2A1+ 3C12 → 2AlCl3 a) Identify limiting reagent b) How many grams of aluminum chloride could...
Consider the reaction of HCI with O2 to form H20 and Cl2. If 5.26 g 02 is reacted with excess HCl and 5.29 g of H2O is ultimately isolated, what is the percent yield for the reaction? Percent yield = %
6) Balance the following equation (1) Fe2O3(s) + CO(g) ® Fe(s) + CO2(g) 7) If 150.0 grams of Fe2O3 react in excess carbon monoxide, what mass of iron will be produced? If in an experiment only 87.9 grams of Fe were recovered, what is the percent yield of this reaction. (5)
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EXAM #2 2. 20.0 g of AlzS3 and 20.0 g of H20 are reacted according to the following reaction: Al S; (s) + 6H20 (1) ► 2 Al(OH)3 (s) + 3 H2S (g) A. Determine the percent yield of the reaction if 17.5g Al(OH)3 are actually produced in this reaction. (8 pts) B. What mass of the excess reactant remains unused after the reaction in complete? (Bonus = 4 points)
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H20(1) – Ca(OH)2(s) In a particular experiment, a 4.50-g sample of Cao is reacted with excess water and 5.45 g of Ca(OH), is recovered. What is the percent yield in this experiment? 6.47 91.6 1.21 121
given equation Mg + 2 HCl —> MgCl2 + H2 If a chemist uses 20g Mg and excess HCl, what mass of MgCl2 product would form?
1. 5.00 g of butane are combusted in a sealed container containing 2.00 g of oxygen gas. The balanced reaction for the combustion of butane is shown below. How many grams of the excess reagent are left over? (This question first requires you to determine the limiting reagent, and then calculate how much will be leftover). Pease answer in g. Molar Mass Butane: 58.12 g/mol Molar Mass Oxygen Gas: 32.0 g/mol 2CH3CH2CH2CH3 + 13O2 --> 8CO2 + 10H2O 2. If...
12. Potassium reacts aggressively with water, as shown in this equation: 2 K + 2 H20→2 KOH + H2 If 0.2 grams of potassium are added to 15.0 grams of water, what mass of KOH can form in this reaction? 7.4 Theoretical and Percent Yield 13. A chemist carries out the following reaction: C.He + Brı → C.H.Br + HBr a. If he reacts 14.2 grams of GoHs with an excess of Brz, what is the theoretical yield of C.H.Br?...
6. Balance the following equation: Sc(NO) Na2SO4 NaNO + Se2(SO4)s + The following information may be helpful for problems 5-6. Molar mass of Na2S203= 158.11 g/mol. Molar mass of AgBr 187.78 g/mol. Molar mass of Na3Ag(S2O3)2 = 401.10 g/mol. Molar mass of NaBr 102.90 g/mol. 7. Consider the following balanced equation: 2NA2S2O3 AgBr Na3Ag(S203)2 NaBr + + What is the limiting reagent or reactant if 52.36 grams of Na2S2O3 reacts with 29.47 grams of AgBr to form 6.15 g of...