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A large flask is evacuated and weighed, filled with argon gas, and then reweighed. When reweighed, the flask is found to have gained 3.219 g. It is again evacuated and then filled with a gas of unknown molar mass. When reweighed, the flask is found to have gained 8.108 g.
Determine the enthalpy for the given reaction as CS2
Gold (Au) crystallizes in a cubic close-packed structure (the face-centered cubic unit cell) and has a density of 19.3 g/cm3. Calculate the atomic radius of gold in picometers.
The two occuring isotopes of gallium-69 and gallium-71,which are found in the ratio of 3:2. Determine the atomic mass of gallium.
Will a precipitate of Cu(OH)2 (Ksp = 1.6x10-19) form when 10.0 mL of 0.010 M NaOH is added to 1.00 L of a 0.010 M CuCl2 solution
How many grams of calcium chloride should be formed from the reactions of hydrochloric acid and calcium hydroxide? If the reaction in 2.4 only produces 3.0 g calcium chloride, calculate the percentage yield of calcium chloride.
State whether each of the following experimental errors would raise or lower the mass of the recovered product:
Identify the potential donor atoms in each of the following Lewis bases and classify the donor atom(s) as hard soft or borderline bases
What is the balanced reduction half-reaction for the following unbalanced redox reaction: Ca(s) + Ag^+(aq)--->Ca^2+(aq)+Ag(s)
The standard enthalpy of formation for ammonia NH3 is -46.2kj/mol. How much heat is released/absorbed when 1 mole of N2 is reacted with three moles of H2 to produce ammonia
Calculate the [OH-] of each aqueous solution with the following [H3O^+] at 25 degrees c: a. Baking soda, 1.0x 10^-8M b. Orange juice 2.0x 10^-4 M c. milk 5.0 x 10^-7 M D bleach 4.8x 10^-12m
using a flow diagram show the separation of a mixture containing p-bromoacetanilide
Write the balanced net ionic equation for the reaction that occur in the following case. Ba(NO3)2 (aq) + K2SO4(q) Express your answer as a balanced net ionic equation.
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