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Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
Aqueous solutions of chromium(III) chloride and lithium hydroxide react to give aqueous lithium chloride and a chromium(III) hydroxide precipitate.
By the time Yuchong is 70 years old, how many light-years is the ship away from the earth? (Assume that the ship does not stop or change direction.)
A buffer is initially prepared by adding 100 mLs of 0.500 M HOl to 60 mLs of 2.00 M NaOI. The mixture is brought to a final volume of 200 mL by adding water. What is the pH fo the buffer
Calculate the molar enthalpy of combustion of cinnamaldehyde (delta H comb) (in kilojoules per mole of cinnamaldehyde).
a 0.025 m monoprotic weak acid is titrated with a 0.10 m naoh solution at 25degc and the ph at the half-equivalence
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. Write a chemical equation for the neutralization reaction that occurs.
How many grams of DRY alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield? How many grams of WET alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield
In a bad sporangiospores and fungi, are found in bag-like structures. Ascospores are also found in bag-like structures, but are always present in even numbers. Why are these spore types not the same?
Calculate the pH during the titration of 40 mL of 0.1M HCL with 0.1M NaOH solution after the following additions of base:
Find the standard reduction potentials for the following half reactions in acidic solution. E° for MnO4 (aq) + 8 H+ (aq) + 5e^- -> Mn^2+ (aq) + 4 H2O (I)
A 9m^3 room contains a canister of CO2 with a faulty valve. At a level of 75 mole % CO2, breathing the air becomes lethal. The room temperature is 25 degrees Celcius.
The equation for the combustion of acetone is: 2 C3H6O + 8 O2 ---> 6 H2O + 6 CO2 + 852.6 kcal How much heat will be given off if 0.18 mol of acetone is completely burned?
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