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If a sample of dry nitrogen occupies 447mL at STP. Explain what would its volume be if it were collected over water at 26 degrees C and 750torr?
Calculate the pH of the solution after the addition of 100mL of 1.00 M HCL. the Ka for Hf is 3.5*10-4
what partial pressure of hydrogen gas is required in order for 0.00426 g of the gas to dissolve in 20.7 ml of pure
Arrange the following elements in order of INCREASING atomic size AND explain how you know the order
Calculate the pH of 0.500L of a buffer solution composed of 0.20 M butyric acid (CH3(CH2)2)2COOH, Ka = 0.000015) and 0.10 M sodium butyrate, (NaCH3(CH2)2COO).
they are stable molecules with normal bonds and are frequently isolated. d. all reactions involve reaction intermediates, but not all have activated complexes. e. they are intermediate structures which have characteristics of both reactants and pr..
If a buffer is made up to be 1.0 M in acetic acid and 1.0 M in sodium acetate predict how much acid will be required to change the pH of 100 mL of the buffer by 0.1 pH units
The solid is not completely submerged in te water. will this technique error ingrease, decrease, or have no effect on the reported density of the solid
A gas sample has a volume of 4.50 L when the temperature is 28 oC and the pressure is 1.00 atm. What will be the new volume of the gas when the temperature is changed to 0.0 oC and the pressure to 850 torr
The item itself serves as the cathode, at which the Au^3+ ions are reduced to Au(s). A piece of solid gold is used as the anode and is also connected to the power source, thus completing the circuit.
A 14.0g sample of an unknown gas occupies 10.8L at a temperature of 30 degrees celsius and a pressure of 750mmHg. What is the molar mass of the gas
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
The reaction of t-butyl bromide (CH3)3CBr with water to make t-butyl alcohol (CH3)3COH proceeds according to the following steps: write the rate law for the reaction
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