20:11Stoichiometry - Limiting & Excess Reactant, Theoretical & Percent Yield - ChemistryThe Organic Chemistry Tutor653views1rank
25:16Stoichiometry Basic Introduction, Mole to Mole, Grams to Grams, Mole Ratio Practice ProblemsThe Organic Chemistry Tutor971views
Multiple ChoiceAmmonium nitrate (NH4NO3), a common fertilizer, is 35.0% nitrogen by mass. How much ammonium nitrate contains 1.25 kg of nitrogen?552views
Multiple ChoiceZeatin, a plant hormone, is known to have 5 nitrogen atoms in every molecule. Nitrogen makes up 33.8% of the mass of the molecule. What is the mass of one molecule in amu?278views
Multiple ChoiceIf a match contained 1.00 g of P, how much P4O10 would form if the following equation was obeyed? ___ KClO3 + ___ P → 10 KCl + ___ P4O10278views
Multiple ChoiceIn order to calculate the mass of a product in a chemical reaction from the number of moles of a reactant, which of the following describes all the conversion factors needed?1263views
Multiple ChoiceIn the following equation how many moles of aluminum chloride are produced from 2.50 mol of hydrochloric acid? 2 Al (s) + 6 HCl(aq) → 2 AlCl3 (aq) + 3 H2 (g)436views1rank
Multiple ChoiceWhen heated, potassium chlorate decomposes to potassium chloride and molecular oxygen: 2 KClO3 → 2 KCl + 3 O2 How much oxygen could be formed from 5.0 g of potassium chlorate?1238views
Multiple ChoiceThe combination reaction for the formation of hydrazine is shown below:4 NH3 (g) + N2 (g) → 3 N2H4 (l)Determine the number of moles of hydrazine formed when 25.7 g ammonia reacts with excess nitrogen gas.291views8rank
Multiple ChoiceThe reaction between solid phosphorus and fluorine is given below:P4 (s) + 12 F2 (g) → 4 PF6 (aq)If 6.92 x 10-5 molecules of solid phosphorus react to completion, how many grams of phosphorus hexafluoride would be produced?304views4rank3comments
Multiple ChoiceDetermine the density of 50.0 mL iron (II) bromide when the following chemical reaction produced 112.7 g iron (II) phosphate.2 K3PO4 (aq) + 3 FeBr2 (aq) → Fe3(PO4)2 (s) + 6 KBr (aq)263views2rank
Open QuestionHow many moles of nitrogen are needed to completely convert 6.34 mol of hydrogen?262views
Open QuestionHow many chlorine atoms are on the products side of the reaction 2Al + 6HCl ‚Üí 2AlCl3 + 3H2? 2 3 6 9250views
Open QuestionWhat mass of silver oxide, Ag2O, is required to produce 25.0 g of silver sulfadiazine, AgC10H9N4SO2, from the reaction of silver oxide and sulfadiazine?244views
Open QuestionThe coefficients in a balanced chemical equation always can express the ratio of335views
Open QuestionAmmonia NH3 chemically reacts with oxygen gas O2 to produce nitric oxide NO and water H2O.202views
Open QuestionGiven 6.000 moles of aluminum (Al), how many grams of aluminum oxide (Al2O3) will be produced?168views
Open QuestionThe molar mass of O2 is 32.0 g/mol. What mass, in grams, of O2 must react to form 3.80 mol of Al2O3?415views
Open QuestionHow many moles of copper must react to form 3.50 mol of Ag? 0.175 mol 1.75 mol 7.00 mol 17.0 mol171views
Open QuestionCalculate the number of grams of oxygen required to convert 63.0 g of glucose to CO2 and H2O.199views
Open QuestionWhat are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water?144views
Open QuestionHow many moles of oxygen (O2) are required to react completely with 1.67 mol H2?255views
Open QuestionHow many moles of CO2 are produced when 5.80 mol of ethane are burned in an excess of oxygen?264views
Open QuestionWhat mass of NaCl can be produced by the reaction of 5.0 mol Cl2? 2 Na + Cl2 --> 2 NaCl172views
Open QuestionIf you produced 5 moles of Ca3(PO4)2, how many moles of NaCl did you also produce?166views
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