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3. When 30 mL of a 375 mL stock solution containing 2.11 M AlCl3 is diluted to 92 mL, how many moles of Al3+ are in the new solution?
4. A stock solution is prepared by adding 35 mL of 1.5 M NaNO2 to enough water to make 49 mL. How many moles of NO2- are in 30 mL of the stock solution?
A mixture of 0.100 mol of CO2, 0.050 mol of H2, and 0.100 mol of H2O is placed in a 1.00 L vessel and reacts according to the reaction shown below. CO2 + H2 --> CO + H2O
Assume that a particular reaction evolves 235kJ of heat and that 24 kJ of PV work is gained by the system What is the delta H inside and the surroundings and delta E inside and out?
A pair of enantiomers is named below. For each stereoisomers, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
Consider the titration of 80.0 mL of 0.0200 M HONH2 (a weak base; Kb = 1.10e-08) with 0.100 M HBrO4. Calculate the pH after the following volumes of titrant have been added- (a) 0.0 mL pH = (b) 4.0 mL pH = (c) 8.0 mL pH = (d) 12.0 mL pH = (e) 16.0..
Two carbon atoms are present in the simplest member of which of the following types of hydrocarbon derivatives
the reactant concentration in a zero-order reaction was 7.00times10-2 m after 155 s and 1.50times10-2 m after 370 s.
If 100.0 mL of NO (at STP) reacts with 400.0 mL of O2 at STP, calculate the partial pressure of NO2 in the final reaction mixture.
The solubility of KNO3 is 155 g per 100 g of water at 75 degree C and 38.0 g at 25 degree C. What mass of KNO3 will crystallize out of solution if exactly 550 g of its saturated solution at 75 degree c is cooled to 25 degree C
a 25 ml sample of .147 m propionic acid hc3h5o2 is titrated with .104 m koh solution. the equivelence point is reached
The partial pressures of gas A and gas B, respectively, are 0.379 atm and 0.675 atm. If 0.190 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
Which of the following condensed notations correctly represents oleic acid
a 251 mL sample of oxygen is collected over water at 25 deg C and 760 torr pressure. If the vapor pressure of water as 25 deg C is 23.8 torr, what is the pressure of the dry gas alone?
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