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Calculate the pH of a buffer containing 0.030 M HC2H3O2 and 0.050 M NaC2H3O2. The Ka of HC2H3O2 is 1.75 x 10^-5
The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions.
What is the ratio of the rate constants for this reaction when the temperature is decreased from °C to °C?
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
Hydrogenation of carbon double bonds C=C (i.e. adding a hydrogen on each carbon atom and thus reducing the double bond into a single bond: H-C-C-H) is a very common process in organic and polymer chemistry.
A certain mass of oxygen was collected over water when potassium chlorate was decomposed by heating. The volume of the oxygen sample collected was 720. mL at 25.0 oC and a barometric pressure of 755 torr.
A solution containing 6.3 X a0^-8 M benzene and 2.0 X 10^-7 M cyclohexane gave peal areas of 3950 and 4870, respectively, in a GC experiment.
Cinnamon owes its flavor and odor to cinnamaldehyde (C9H8O). Determine the boiling point elevation of a solution of 89.3 mg of cinnamaldehyde dissolved in 1.00 g of carbon tetrachloride (kb = 5.03 C/m)
If a bottle of nail polish remover contains 151 g of acetone, how much heat would be released by its complete combustion?
what is the molality of a solution of glucose that contains 48.0 g of c6h12o6 dissolved in 410.0 g of water? use molar
What is the total sample size (in grams) for a sample of magensium nitrite which contains 0.96 g of oxygen
What amount of barium hydroxide (in moles) must be dissolved in a total of 5.00L of solution in order to have a pH of 12.00
Determine the volume of the methane at STP if bacterial culture isolated from sewage produced 35.5 mL of methane, CH 4 , at the temperature of 31 degree Celsius and at pressure of 753 mmHg.
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