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Suppose that on another planet the atmosphere consists of 17% Kr, 38% CH4, and 45% O2. What is the average molar mass at the surface? What is the average molar mass at an altitude at which all the O2 is photodissociated?
My balanced equation is: 3HBr(aq) + Al(OH)3 (s) ----> AlBr3 (aq) + 3H2O(l) My question is: What are the spectator ions
Question- Predict how much copper in grams should be transferred from the anode to the cathode if an electrolytic cell is run for 10.0 minutes with a current of 0.75 amps.
How many moles of magnesium and moles of chlorine ions are present in 123.4 mL of a .345 M solution of magnesium chloride
A soluation of HO-CH2-CH2-OH is prepared by dissolving 651g of ethylene gylcol in 1.50kg of water. Determine the freezing point of the soluaiton and the vapor pressure of water above the solution 25.0 degrees C.
A sample of 10.7 g of CO reacts completely with O2 to form CO2. How many grams of CO2 will be formed
A BaSO4 slurry is ingested just before the gastrointestinal tract is x-rayed because it is opaque to x-rays and defines the contours of the tract. Ba2+ ion is toxic, but the compound is nearly insoluble
Calculate the equilibrium concentrations of IO3- and Cd2+. Assume volumes are additive, and the temperature remains constant
Consider the reaction 2ZnS + 3O2 → 2ZnO + 2SO2. Suppose that you wanted enough O2 to completely react with 500. g of ZnS. What mass of O2 should be present?
How many grams of dry NH4Cl need to be added to 2.30 L of a 0.100 M solution of ammonia,NH3, to prepare a buffer solution that has a pH of 9.00
A 2.747 g sample of manganese metal is reacted with excess HCl gas to produce 3.22 L of H2 (g) at 373 K and 0.951atm, as well as a manganese chloride compound (MnClx). Explain what is the formula of the manganese chloride compound produced in the ..
Write the overall equation for the reaction. B) Do you expect this reaction to go by an E1 or an E2 mechanism?
What is the density of an object with a weight of 32 grams if it has a volume of 4 cubic centimeters
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