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A student is performing an esterification reaction with benzoic acid and methanol to give methyl benzoate and water. The student starts with 0.97 moles of benzoic acid and 7.8 moles of methanol. At the end of the experiment 0.9 moles of methyl benzoate are isolated. Assuming no experimental loses, how much benzoic acid should be recovered
compound be meso if it only has one chiral center? For example, is 1-chloro-1-methylcyclohexane a meso compound?
A cube of a gold with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. What is the percent error of the measured density?
The sensitivity of a spectrophotometer allows detection of 1 percent of one colored form of an indicator for example HIn in the presence of 99 percent of the other colored form In-. Based on this fact, over what pH range relative to its pK can an ..
What is the anhydride of each of the following acids. (a) H2SO4 (b) HClO3 (c) HNO2 (d) H2CO3 (e) H3PO4
If you have .200 mL of methyl salicyate (density=1.184 g/mL)(molar mass=152.15 g/mol) how many moles do you have?
What is the percent yield for the reaction if 65.0 g of iron(III) oxide produced 15.0 g of iron? b) What is the percent yield for the reaction if 75.0 g of carbon monoxide produces 85.0 g of carbon dioxide
In combustion studies of the use of H2 as an alternative fuel, HO is sometimes formed in flames by the reaction, H(g) + 1/2 O2(g) HO(g) Use the data below to calculate the value of Kc H2(g) 2 H(g) Kc = 0.00473 1/2 H2(g) + 1/2 O2(g) OH Kc = 0..
Inorganic phosphorous is spectrophotochemically measured in blood serum by formation of a reduced heteropoly acid (heteropoly blue) and comparison of its absorbance with a standard treated by the same procedure.
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
Put in order the following molecules in terms of the Permeability of the molecule across a membrane by simple diffusion at pH 7.
At 350 K, Kc = 0.142 for the reaction 2BrCl(g) -> Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.058 mol/L. What is the equilibrium concentration of BrCl? Answer in units of M.
The disappearance of X is monitored at timed intervals. Assume that temperature and volume are kept constant. The data obtained are shown in the table below.
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