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The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion. 4 N2H3CH3(l) + 5 N2O4(l) 12 H2O(g) + 9 N2(g) + 4 CO2(g) Calculate ?H° for this reaction. in kJ
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range.
A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml .(a)find the mean volume and deviation from the mean for each and calculate the average deviation from the mean (b) calculate the relative deviation (in %) for this set of data. Relative deviation (%) ..
a solution was prepared by mixing 50 ml of 0.100 M HCl with enough water to get 250 ml solution . what is the M of the final solution of hydrochloric acid?
In an equilibrium mixture the partial pressures of SO2 and O2 are 0.165 atm and 0.755 atm, respectively. What is the equilibrium partial pressure of SO3 in the mixture?
Show the calculation for the moles of benzaldehyde, the moles of acetone, the theoretical yield of dibenzalacetone in grams, and the calculation for the % yield of the product (dibenzalacetone). Also indicate which reagent is the limiting reagent.
2 NH3(g) + 3 O2(g) + 2 CH4(g) → 2 HCN(g) + 6 H2O(g) If 5.08 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
Suppose that you wished to prepare copper(II) carbonate by a precipitation reaction involving Cu2+ and CO3^2-. Select all of the pairs of reactants that could be used as solutes
calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate cano32 to
Draw one planar structure each for the following compounds using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, include the hydrogen atoms on the chirality centers (asymmetric carbons).
In an experiment 1.550g of mercury oxide decomposed to give oxygen gas and 1.435g of liquid mercury. What is the empirical formula of mercury oxide
Starting from the ideal gas equation, show how you can calculate the molar mass of a gas from knowledge of its density.
Calculate the number of molecules of AsCl3 that would be in 1 mL of Solution C at this concentration. Look at your answer. This is the average number per mL. But what is the most likely number (ie integer) of molecules of AsCl3 in 1 mL?
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