17. A fuel mixture used in the early days of rocketry consisted of two liquids, hydrazine (N2H4) and dinitrogen tetraoxide (N2O4), which ignite on contact to form nitrogen gas and water vapor. How much in grams of the excess reagent is used up when 435.0 g of N2H4 and 718.5 g of N2O4 are mixed? (, MW: N2O4 = 92.011g/mol, N2H4 = 32.05g/mol, N2 =28.013 g/mol 2N2H4() + N2O40) 3N2(9) + 4H2O(g) ->

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To produce zinc metal, carbon monoxide reacts with zinc (I1) oxide according to: Zno + CO - Zn + CO2 The carbon monoxide, however, is initially prepared from: 2C+ 02 → 200 How many grams of zinc metal (Zn) may be prepared if If 81.0g of C is used with excess amount of ZnO? Your answer should be numerical and neglect units (e.g., if you calculate 3.5g then input 3.5).

Part d and e

Acetylene torches are used for welding. These torches use a mudure of acetylene gan, CH₂, and oxygen gas, O, to produce the following combustion reaction 2C₂H₂(g) +50; (g)-+4CO(g) + 2H₂O(g) Part A Imagine that you have a 5.50 1, gas tark and a 2.00 1 gas tank You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch if you fill the larger tank with oxygen to a pressure of 155 atan, to what pressure should you till the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases Express your answer with the appropriate units ▸View Available Hint(s) P Value Submit atm ? X Incorrect Try Again: 5 attempts remaining

The enthalpy for combustion for ethanol is -1370.7 kJ/mole and occurs via the following balance chemical reaction.   C2H6O (l)         +          3 O2 (g)           -->        2 CO2 (g)         +          3 H2O (g)   If 0.461 grams of ethanol are combusted in the presence of 1.28 g of O2, answer the following.   a. How many grams of CO2 could be produced?   b. How much heat is released?   c. What is the change in internal energy (DU)?

Wine is produced by the fermentation of grapes. In fermentation, the carbohydrate glucose (C6H₁206) is converted to ethanol (C₂H6O) and carbon dioxide (CO₂), according to the given balanced equation. CH₁₂O6(aq) 2C,H,O(aq) + 2 CO₂ (g) How many grams of ethanol (C₂H₂O) are formed from 0.75 mol of glucose (C6H₁206)? Be sure your answer has the correct number of significant figure g C₂H₂O 0x10 X Ś

14. The fertilizer ammonium sulfate [(NH,),SO4] is prepared by the reaction between ammonia (NH3) and sulfuric acid: 2NH;(g) + H,SO,(aq) --->(NH,),SO,(aq) How many kilograms of NHz are needed to produce 1.00 x 10° kg of (NH,),SO,?

The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by doing a famous experiment in 1775. In this experiment Lavoisier found that mercury(11) oxide, when heated, decomposed into liquid mercury and an invisible and previously unknown substance: oxygen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury(11) oxide (HgO) into liquid mercury and gaseous dioxygen. 2. Suppose 39.0 mL of dioxygen gas are produced by this reaction, at a temperature of 50.0 °C and pressure of exactly 1 atm, Calculate the mass of mercury(11) oxide that must have reacted. Round your answer to 3 significant digits. 0. 0-0 X

Consider the gaseous reaction at 347 C          N2 + 3H2 ---> 2NH3 if 2.00 mole of N2 and 3.00 mole of H2 react, a) which of the two reactants is the limiting reagent  b) if the reaction goes completely, how many grams of NH3 should be produced c) calculate the percent yield of 2.50 g of NH3 are actually obtained