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Some calcium supplements contain calcium citrate, Ca3(C6H5O7)2, and others contain calcium carbonate, CaCO3. Which compound has the higher mass percent of calcium? (Show your work to support your answer.)
A patient with type I diabetes has come to the emergency room with ketoacidosis. which of the following would help to explain her high blood pressure
Write the balanced half-reaction ocurring at the cathode. What would the potential of the cell if it was modified to use 0.10M AgNO3 solution and a 0.30M Cd(NO)3 solution instead
What is temperature of boiling water in Denver (in?C) at an elevation of 6000 ft ? 2000 m given that atmospheric pressure at that altitude is about 0.8 atm?
Calculate the enthalpy per mole of sodium hydroxide for the dissolution process. Assume the specific heat of the solution is the same as that for pure water.
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP (37 C, 767 torr, 100% humidity) by ingesting one 1.834 gram tablet
Predict whether or not the ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X?anion.
When an aqueous solution suspected of containing Ba2+ or Pb2+ or both is mixed with sulfuric acid a precipitate forms. In another test, when the original solution is mixed with an aqueous solution of sodium sulfide no precipitate forms.
Explain this different physical state behavior in terms of chemical structure and secondary intermolecular bonding.
A mixture of gases contains 1.35 g of N2, 2.64 g of H2, and 2.38 g of NH3. If the total pressure of the mixture is 1.64 atm, what is the partial pressure of each component. PN2 atm PH2 atm PNH3 atm
Calculate deltaG at 298K if the reaction mixture consists of 7.4 atm of H2, 0.056 atm of P4, and 0.29 atm of PH3. Reaction is 6H2(g)+P4(g)-->4PH3(g).
Germanium forms a substitutional solid solution with silicon. Compute the weight percent of germanium that must be added to silicon to yield an alloy that contains 4.43 × 1021 Ge atoms per cubic centimeter
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product
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