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Would the following rocedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case
A. Your flask was wet when you started the experiment
B. Your flask was removed from the water bath before the vapor had reached the temperature of the boiling water
Compute the volume of 3M NaOH(aq)aqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in the synthesis of acetyl-ferrocene.
Calculate the pH of 0.103 M phosphoric acid (H3PO4, a triprotic acid). Ka1 = 7.5 x 10^-3, Ka2 = 6.2 x 10^-8, and Ka3 = 4.8 x 10^-13.
A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29?C. What is the new pressure of the gas in Pa.
draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when benzoic acid reacts with Br2 in the presence of FeBr3
A gaseous mixture of O2 and Kr has a density of 1.104 g/L at 435 torr and 300K. What is the percent of O2 in the mixture?
An equilibrium mixture for the reaction above contains [H2] = 1.00 M, [N2] = 1.50 M, and [NH3] = 2.00 M. What is the value of the equilibrium constant, Kc, for the reaction?
Assume that the wet limestone process requires 1 metric ton of calcium carbonate to remove + 85.0 % of the sulfur from 4 metric tons of coal containing + 10.0 % S Assume that the sulfur product is calcium sulfate.
seperate two compounds efficiently, what alternatives would one consider to effect clean separation by distillation?
For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.350 M after 25.0 min and 0.170 M after 40.0 min.
A gas mixture composed of helium and argon has a density of 0.727g/L at a 755mmHg and 298K .What is the composition of the mixture by volume?
Synthetic polypeptides can assume an helical structure under appropriate conditions. Indicate whether polylysine and polyglutamate form an helix
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
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