Five Questions, 10 pts each 50 pts total 1. Calcium oxide reacts with water in a...
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
10. (a) Determine the mass of calcium oxide (CaO, lime) that can possibly be produced by heating 44.6 g of calcium carbonate (CaCO). The balanced equation for this reaction is shown in Equation 8 heat CaO(s) +CO2 (g) CaCOs(s) (Eq. 8) (b) Determine the mass of CO2 that would be produced by the reaction described in (a). 11. Joseph Priestley's study of the decomposition of mercury(ID oxide (HgO) with heat led to the discovery of O2. The balanced equation for...
answer questions 1,2,3 DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and hydrogen, releasing carbon monoxide according to the reaction below. If you combine 11.6 moles of Fe(CO)s. 81.6 moles of PF3, and 90 moles of H2, how many moles of Fe(CO)2(PF3)2(H2)2 are formed? Fe(CO)5 (s) + 2 PF3 (s) + 2 H2 (g)--Fe(CO)2(PF3)2(H2)2 (s) + 3 CO (g) uestion2 2 pts What is the percent yield of the following reaction if 23.4 grams of NH3 are...
For this reaction, 31.3 g zinc oxide reacts with 11.1 g water. zinc oxide (s) + water (l) = zinc hydroxide (aq) What is the maximum mass of zinc hydroxide that can be formed? What is the FORMULA for the limiting reagent? What mass of the excess reagent remains after the reaction is complete?
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide CaOg + H₂2 Ca(OH)2) In a particular experiment a 2.00g sample of Calis reacted with excess water and 2.14g of Ca (OH) is recovered What is the percent held in this experiment
1) Ammonia, NH3, reacts with molecular oxygen, O2, to form nitric oxide, NO, and water:4NH3(g) + 5O2(g) = 4NO (g) +6H2O(l)A. What is the limiting reactant and what is the theoretical yield of NO?B. What is the theoretical yield of H2O?C. How many grams of excess reagent will be left over?D. If the actual yield of NO had been 91 g, what would be the percent yield of the reaction
If the percent yield for the following reaction is 75.0%, and 45.0 g of NO2 are consumed in the reaction, how many grams of nitric acid, HNO3(aq), are produced? 3 NO2(g) + H2O(l) ? 2 HNO3(aq) + NO(g)
6. Calcium oxide reacts with nitric acid to produce calcium nitrate and water. How many grams of calcium oxide are required for complete reaction with 30.0 mL of 0.587 M nitric acid? The molar mass of calcium oxide is 56.077 g/mol. (Hint: start by writing the balanced equation for the reaction.) 7. A sample contains an unknown amount of succinic acid, H2CHO. If 0.3540 g of the sample requires 42.70 mL of 0.1000 M NaOH to neutralize the H2C,H404 completely,...
described in (a). 11. Joseph Priestley's study of the decomposition of mercury(II) oxide (HgO) with heat led to the discovery of O2. The balanced equation for this reaction is shown in Equation 9. (Eq. 9) beat 2 HgO(s) 2 Hg()+O2(g) (a) How many grams of O2 could possibly be formed by the decomposition of 75.0 g of HgO? (b) How many grams of HgO must be decomposed to produce 75.0 g of O2? 12. Propane (CHs) is used as a...
Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) → CaCO3(s) ∆H = –178.4 kJ How many kilojoules of heat are evolved in the reaction of 0.500 kg CaO(s) (molar mass 56.08 g/mol) with an excess of carbon dioxide?