Methanol (CH 3 OH) can be decomposed to form hydrogen gas and carbon monoxide ga
ID: 786005 • Letter: M
Question
Methanol (CH3OH) can be decomposed to form hydrogen gas and carbon monoxide gas. If 125 grams of methanol is decomposed, and 13.6 grams of hydrogen gas is produced, what is the percent yield of hydrogen gas in this experiment?
Aspirin is produced by the reaction of salicylic acid (C7H6O3 . M = 138.1 g/mol) and acetic anhydride(C4H6O3, M = 102.1 g/mol).
C7H6O3(s) + C4H6O3(l) ? C9H8O4(s) + C2H4O2(l)
If 2.04 g of C9H8O4 (M = 180.2 g/mol) is produced from the reaction of 3.00 g C7H6O3 and 5.40 g C4H6O3, what is the percent yield?
Solid aluminum reacts with chlorine gas to produce solid aluminum chloride. If 2.70 grams of aluminum and 4.05 grams of chlorine gas were mixed, what maximum mass of aluminum chloride could be produced?
Consider the reaction: MnO2 + 4 HCl ? MnCl2 + Cl2 + 2 H2O. If 0.86 mol of MnO2 and 48.2 g of HCl react, how many grams of Cl2 will be produced?
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of CO2 produced is 33.5 grams, what was the approximate mass of the methane in the original mixture?
How many milliliters of 0.100 M NaOH are needed to completely neutralize 25.0 mL of 0.250 M H3PO4 ?
What volume of a 0.750 M solution of hydrochloric acid can be prepared from the HCl produced by the reaction of 25.0 g of NaCl with an excess of sulfuric acid?
NaCl(s) + H2SO4(l) ? HCl(g) + NaHSO4(s)
Select the net ionic equation for the reaction between sodium chloride and mercury(I) nitrate:
2 NaCl(aq) + Hg2(NO3)2(aq) ? NaNO3(aq) + Hg2Cl2(s)
You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.5 mL of NaOH to titrate 100.0 mL of HCl and 18.4 mL of NaOH to titrate 50.0 mL of 0.0782 M H2SO4. What are the concentrations of the HCl and NaOH respectively?
How many grams of solid magnesium nitrate should be added to 5.0 g of solid sodium nitrate in a 500-mL volumetric flask in order to produce an aqueous 0.25 M solution of NO3
A. 86.5% B. 95.3% C. 21.7% D. 43.3% Methanol (CH3OH) can be decomposed to form hydrogen gas and carbon monoxide gas. If 125 grams of methanol is decomposed, and 13.6 grams of hydrogen gas is produced, what is the percent yield of hydrogen gas in this experiment? Aspirin is produced by the reaction of salicylic acid (C7H6O3 . M = 138.1 g/mol) and acetic anhydride(C4H6O3, M = 102.1 g/mol). C7H6O3(s) + C4H6O3(l) ? C9H8O4(s) + C2H4O2(l) If 2.04 g of C9H8O4 (M = 180.2 g/mol) is produced from the reaction of 3.00 g C7H6O3 and 5.40 g C4H6O3, what is the percent yield? Solid aluminum reacts with chlorine gas to produce solid aluminum chloride. If 2.70 grams of aluminum and 4.05 grams of chlorine gas were mixed, what maximum mass of aluminum chloride could be produced? Consider the reaction: MnO2 + 4 HCl ? MnCl2 + Cl2 + 2 H2O. If 0.86 mol of MnO2 and 48.2 g of HCl react, how many grams of Cl2 will be produced? A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of CO2 produced is 33.5 grams, what was the approximate mass of the methane in the original mixture? How many milliliters of 0.100 M NaOH are needed to completely neutralize 25.0 mL of 0.250 M H3PO4 ? What volume of a 0.750 M solution of hydrochloric acid can be prepared from the HCl produced by the reaction of 25.0 g of NaCl with an excess of sulfuric acid? NaCl(s) + H2SO4(l) ? HCl(g) + NaHSO4(s) Select the net ionic equation for the reaction between sodium chloride and mercury(I) nitrate: 2 NaCl(aq) + Hg2(NO3)2(aq) ? NaNO3(aq) + Hg2Cl2(s) You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.5 mL of NaOH to titrate 100.0 mL of HCl and 18.4 mL of NaOH to titrate 50.0 mL of 0.0782 M H2SO4. What are the concentrations of the HCl and NaOH respectively? How many grams of solid magnesium nitrate should be added to 5.0 g of solid sodium nitrate in a 500-mL volumetric flask in order to produce an aqueous 0.25 M solution of NO3- ions (once the flask is filled to the 500.-mL volume line)?Explanation / Answer
if according to stoichiometry,
x grams are supposed to be formed
and if y grams are formed,
percent yield=y/x*100%