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A 55.0mL sample of a 0.102M potassium sulfate solution is mixed with 35.0mL of a 0.114M lead(II) acetate solution as well as the precipitation reaction occurs
K2SO4(aq)+Pb(C2H3O2)2(aq)->2KC2H3O2(aq)+PbSO4
(s) The solid PbSO4 is collected, dried and determined to have a mass of 1.01g . Find out the limiting reactant, the theoretical yield and the percent yield?
Explain how much dry solute would you take to prepare each of the subsequent solutions from the dry solute and the solvent
The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 438 grams of ice initially at -6°C to liquid water at 64°C
Explain what will the volume of 254 cm3 of gas be at STP if its current temperature is 72.6 degrees C
Draw the Lewis structures for the following compounds. 1) PBr3 Using VSEPR, what is the shape about the P. 2) N2H2 3) CH3OH Using VSEPR, what is the shape about the C and about the O? 4) CO2 Using VSEPR, what is the shape about the C? 5) C2H4
A 0.01M solution of acid HAS, has a ka=1.6 x 10-10 and a concentration of NaAS of 1.29 x 10-3 molar; (a) what is the pH of this solution and (b) what is the pkb of the conjugate base of HAS
Determine each of the following. 1) the initial pH? 2)the volume of added acid required to reach the equivalence point
Copper dissolved in nitric acid, producing copper (II) nitrate. After reaction with sodium hydroxide an heating, copper nitrate changed to copper(II) oxide. Calculate the percent yield of this process if 1.025g of copper produced 1.025 g of copper..
An aqueous solution of CaCl2 has a vapor pressure of 84.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg . What is the concentration of CaCl2 in mass percent?
When 2-Methylpropene was treated with aqueous sulfuric acid, tert-butyl alcohol was obtained. Draw a step-by-step mechanism for this conversion. Show curved arrow to indicate electron pair movements.
Diethyl ether has a deltaH vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0 C. What is its vapor pressure at 81.0 C
Compute the concentration in molecules cm-3 and the mixing ratio in ppm of water vapor at ground level at T=298K as well as RH values of 50% and 60%
balance the forward reaction with whole-number coefficientsalpha ch3ohl beta o2g---gtgamma co2g delta h2olgive your
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