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A 0.10-cm^3 sample of a solution containing a radioactive nuclide (5.0x10^3 counts per minute per mL) is injected into a rat. Several minutes later 1.0 cm^3 of blood is removed. The blood shows 48 counts per minute of radioactivity. Calculate the volume of blood in the rat.
Analysis of a metal chloride XCl3 shows that it contains 64.3% Cl by mass. Calculate the molar mass of X
The spatial relationship between the hydrogen on C-1 and the hydrogen on C-2 in the most stable chair conformation is: gauche, eclipsed with a 0 degree dihedral angle, eclipsed with a 120 degree dihedral angle, anti
What is the initial concentration (in M) when 15.3 mL of a potassium hydroxide solution was diluted with 15.1 mL of solvent to a final concentration of 0.561 M? Assume the volumes are additive.
The Wittig reaction involves coupling between a phosphonium ylide and a carbonyl-containing molecule. If a chemist wants to use the Wittig reaction to synthesize 2-methyl-2-butene, which reactants should be used?
What volume of ammonia gas measured at 762 mm Hg and 21.0 °C must be absorbed by the same solution to neutralize the HCl?
Using the perfect gas law, if the diver rapidly resurfaces to 1 atm of pressure, how much N2 in Liters will come out of their blood
how do you find the empirical formula of a compound if they don't give you percentages. For example, if they ask: what is the empirical formula for N2O4?
Dinitrogen pentoxide is a product of the reaction between P4O10 and HNO3. Balance this reaction and calculate the theoretical yield of N2O5 if 79.7 g of P4O10 are reacted with excess of HNO3.
Calculate the concentration of OH- in a solution that contains 3.9 x 10 to the -4 M H30+ at 25 degrees C. Identify the solution as acidic, basic, or neutral.
An aqueous solution of NaCl has a mole fraction of 0.30. What is the mass of NaCl dissolved in 185.9 mL of solution
Explain the hybridization of carbon in C2H2 using electron configuration diagrams of the original atoms, excited staes
Choose the answer which gives the electron-domain geometry and molecular geometry which are both correct for TeF4.
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