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Suppose a 5.00 L sample of Oxygen at a given temperature and pressure contains 1.08 * 10^23 molecules. How many molecules would be contained in each of the following at the same temperature and pressure? A.) 5.0 L hydrogen
The air in a laboratory was measured with a barometer to be 7.40 x 10^2 mm Hg. What is the laboratory air pressure in atm?
When the concentrations of CH3Br and NaOH are both 0.165 M, the rate of the reaction is 0.0050 M/s. (c) What is the rate of the reaction if the concentrations of CH3Br and NaOH are both increased by a factor of four?
in ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH it was 4.86
Assume that the volumes are additive, the specific heat of the solution is 4.18 Jg-1°C-1 and that the density of the solution is 1.00 g mL-1 Calculate the enthalpy change, ?H in kJ for the reaction
An air sample contains 0.034% . If the total pressure is 765 , what is the partial pressure of
Which reaction sequence would be best to prepare m-chloroaniline from benzene? a. chlorination, nitration, reduction
What are the products of a Diels-Alder reaction between 1mL (12mmol) of cyclopentadiene and 1.393g (12mmol) of fumaric acid? and what is the Theoretical Yield? please show calculations
a 10.00-ml sample of sulfuric acid from an automobile battery requires 35.08 ml of 2.12 m sodium hydroxide solution for
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
If you use 25.0 mL of the 0.24M sodium hydroxide solution to titrate a 0.40 M solution, how many mL of HCl will be used
Consider the reaction of sulfur dioxide and water, which is represented by the following equation: 2SO2(g) + 2H2O(g) ® 2H2S(g) + 3O2(g) How many moles of electrons are transferred according to the equation that is written
State whether each of the following is a physical or a chemical property of copper. has good corrosion resistance high melting point doesn't react with water reacts with oxygen
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