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What volume of
Assume constant T and P for reactants and products.
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- A student prepares phosphorous acid, H3PO3, by reacting solid phosphorus triiodide with water. PI3(s)+3H2O(l)H3PO3(s)+3HI(g) The student needs to obtain 0.250 L of H3PO3(d=1.651g/cm3). The procedure calls for a 45.0% excess of water and a yield of 75.0%. How much phosphorus triiodide should be weighed out? What volume of water (d=1.651g/cm3) should be used?arrow_forwardWhen calcium carbonate is heated strongly, it evolves carbon dioxide gas. CaCO3(s)CaO(s)+CO2(g) 25 g of CaCO3 is heated, what mass of CO2would be produced? What volume would this quantity of CO2 (CU at STP?arrow_forwardThe nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first reacted by passage over hot CuO(s): CompoundCuO(s)HotN2(g)+CO2(g)+H2O(g) The product gas is then passed through a concentrated solution of KOH to remove the CO2. After passage through the KOH solution, the gas contains N2 and is saturated with water vapor. In a given experiment a 0.253-g sample of a compound produced 31.8 mL N2 saturated with water vapor at 25C and 726 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25C is 23.8 torr.)arrow_forward
- If an electric current is passed through molten sodium chloride, elemental chlorine gas is generated as the sodium chloride is decomposed. :math>2NaCl(1)2Na(s)+Cl2(g) at volume of chlorine gas measured at 767 mm Hg at 25 °C would be generated by complete decomposition of 1.25 g of NaCl?arrow_forward2. If you mix 1.5 L of B2H6 with 4.0 L of O2, each at 0 °C and a pressure of 1.0 atm, what amount of water is produced? 0.18 mol 0.067 ml 0.25 mol 0.060 molarrow_forwardA power plant is driven by the combustion of a complex fossil fuel having the formula C11H7S. Assume the air supply is composed of only N2 and O2 with a molar ratio of 3.76:1.00, and the N2 remains unreacted. In addition to the water produced, the fuels C is completely combusted to CO2 and its sulfur content is converted to SO2. In order to evaluate gases emitted at the exhaust stacks for environmental regulation purposes, the nitrogen supplied with the air must also be included in the balanced reactions. a Including the N2 supplied m the air, write a balanced combustion equation for the complex fuel assuming 100% stoichiometric combustion (i.e., when there is no excess oxygen in the products and the only C-containing product is CO2). Except in the case of N2, use only integer coefficients. b Including N2 supplied in the air, write a balanced combustion equation for the complex fuel assuming 120% stoichiometric combustion (i.e., when excess oxygen is present in the products and the only C-containing product is CO2). Except in the case of use only integer coefficients c Calculate the minimum mass (in kg) of air required to completely combust 1700 kg of C11H7S. d Calculate the air/fuel mass ratio, assuming 100% stoichiometric combustion. e Calculate the air/fuel mass ratio, assuming 120% stoichiometric combustion.arrow_forward
- What volume (in liters) of O2, measured at standard temperature and pressure, is required to oxidize 0.400 mol of phosphorus (P4)? P4(s) + 5 O2(g) P4O10(s)arrow_forwardIn the presence of nitric acid, UO2+ undergoes a redox process. It is converted to UO22+ and nitric oxide (NO) gas is produced according to the following unbalanced equation: H+(aq)+NO3(aq)+UO2+(aq)NO(g)+UO22+(aq)+H2O(l) If 2.55 102 mL NO(g) is isolated at 29C and 1.5 atm, what amount (moles) of UO2+ was used in the reaction? (Hint: Balance the reaction by the oxidation states method.)arrow_forwardA gas is formed in the reaction shown below. The gas laws can help determine the volume of gas produced. Zn(s) + 2 HCI(aq) → ZnCl, + H2(g) Assume that 165.6 grams of Zn was used in this reaction. To determine the number of moles of hydrogen gas formed, you need to know the number of moles of Zn reactant was used. How many moles of Zn were used? molarrow_forward
- The industrial production of nitric acid (HNO3) is a multistep process. The first step is the oxidation of ammonia (NH3) over a catalyst with excess oxygen (O2) to produce nitrogen monoxide (NO) gas as shown by the unbalanced equation given here: Part A ?NH3(9)+?O2(9)–→?NO(g)+?H2O(g) What volume of O, at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your answer numerically in litres. • View Available Hint(s) volume of O, = Submit Previous Answers Request Answerarrow_forwardMercury can be obtained by reacting mercury(II) sulfide, HgS, with calcium oxide, CaO. How many grams of calcium oxide are needed to produce 12.2 g of Hg? 4 HgS(s) + 4CaO(s) → 4Hg(1) + 3CaS(s) + Cas(arrow_forward6. If 15.00g of Mg¿(SO4)3 is reacted with 32.25mL of o.2038M of AGNO3 to produce Mg(NO3)2 and Ag.SO4, answer the following questions.arrow_forward
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