Scelta multiplaIn the reaction between ammonia (NH_3) and phosphoric acid (H_3PO_4) to form ammonium phosphate ((NH_4)_3PO_4), how many moles of ammonia are required to react completely with 3 moles of phosphoric acid?154views
Scelta multiplaWhat volume of 1.0 M sodium phosphate solution is required to prepare 4.0 L of 0.80 M sodium phosphate solution?103views
Scelta multiplaHow many atoms of sulfur are present in 4.30 grams of carbon disulfide (CS_2)?124views
Scelta multiplaWhat volume (in liters) of a 0.60 mol/L CaCO3 solution is required to contain 105 g of CaCO3? (Molar mass of CaCO3 = 100 g/mol)112views
Scelta multiplaWhen 25.5 grams of NaHCO3 decompose completely, what mass of CO2 is produced? (Molar masses: NaHCO3 = 84.0 g/mol, CO2 = 44.0 g/mol)141views
Scelta multiplaIn terms of stoichiometry, what is the coefficient of O_2 in the balanced chemical equation for the combustion of C_2H_6?109views
Scelta multiplaGiven that air is approximately 21% oxygen by mole, how many moles of propane (C_3H_8) are needed to completely react with the oxygen present in 24.0 moles of air?134views
Scelta multiplaWhat mass of Ca(OH)_2 is required to react completely with a 25.00 mL sample of 0.1234 M HCl(aq)?107views
Scelta multiplaIf 5.0 moles of C_3H_8 react completely with oxygen, how many molecules of H_2O are formed?104views
Scelta multiplaWhat volume in mL of a 0.3000 M NaCl solution is required to provide 0.1500 moles of NaCl?115views
Scelta multiplaIn the reaction 2 H_2 + O_2 → 2 H_2O, how many moles of O_2 are required to completely react with 27.4 mol of H_2?102views
Scelta multiplaWhen 3 moles of hydrogen gas (H_2) react completely with 3 moles of oxygen gas (O_2) according to the equation 2H_2 + O_2 → 2H_2O, how many grams of water (H_2O) are produced?99views
Scelta multiplaWhen 0.100 moles of bromine (Br_2) react with excess hydrogen gas (H_2) according to the equation Br_2 + H_2 → 2 HBr, how many grams of HBr will be produced?112views
Scelta multiplaWhich of the following would NOT be studied within the topic of stoichiometry?118views