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A certain first order reaction has a rate constant of 0.0215 s-1 at 24 degrees C. What is the value of rate constant at 70 degrees C if Ea=90.0 kJ/mol?
Determine how many milligrams of H 2 O are present in sample If the freezing point of a 100.0g sample of 2-methyl-2-propanol =24.59C?
Determine the numbers of moles of iron that would be formed from 6.2 moles of CO (carbon monoxide) combining with excess of iron (III) oxide (Fe2O 3 )?
What must be the atomic mass of the metal M If A sample of the compound MSO 4 weighing 0.1131 g reacts with barium chloride and yields 0.2193 g BaSO4.?
If a sample of sodium is dropped into a container of water the reaction is:
Calculate what the limiting reactant is in the reaction between copper (II) oxide and hydrochloric acid
Compute the molecular formula of CH 3 COOH the percent composition of acetic acid is 39.99% C and 6.73% H. The remainder of the compound is oxygen.(The molar mass of acetic acid is 60.06 g/mol.)
A 2.30 L sample of O2(g) was collected over a liquid at a total pressure of 785 torr and 25°C. When the O2(g) was dried (vapor of that liquid removed), the gas had a volume of 1.86 L at 25°C and 785 torr.
What is the concentration of the H 2 SO 4 if a chemist titrates 300.0 mL of Sodium Hydroxide NaOH with a 5.0 M solution of NaOH and needs only 3.4 mL of the base to reach the endpoint,?
You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.
Explain, phenomena in terms of atomic structure and behavior. When you lightly bump into a car, why does it dent and not create a hole.
Explain would the calculated molarity of NaOH be too high or too low If the KHP weighed in your experiment today was contaminated with some unknown inert substance.
Mixture also contains He (helium gas). determine the partial pressure of the He gas?
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