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A radioactive 32P nucleus has a half-life of 14.3 days. If a 50.00 g sample is allowed to decay naturally, how much time passes until only 1.00 g of 32P remains?
Based on their activation energies and energy changes and assuming that all collision factors are the same, which of the following reactions would be slowest in the forward direction
How do you calculate the pH of a solution given the concentration of OH- ions?
Write an equation, using the curved-arrow notation, for the acid-base reaction that will take place when each of the following are mixed. If no appreciable acid-base reaction takes place
Grignard reagent and carbonyl-containing compound. Suppose scheme one involves the reaction of the Grignard reagent containing more carbon atoms with the carbonyl compound containing less carbon atoms and scheme two involves the reaction of the Gr..
Calculate the amount of heat (in kJ) required to convert 63.3 g of water to steam at 100°C. Use the correct amount of sig figs.
Write the chemical equation(s), including state symbols, for what happens when the following ionic compounds are placed in water. Are these substances reacting with water when they are added to water
If you have 15mL of 0.1 M NaC2H3O2, and the pH is 7.0. What would the Kb be for this reacton
Give the structure of the sodium salt of methyl salicylate and in the second part of the experiment, what is the structure of the anionic form of salicylic acid before it is acidified with the dilute sulphuric acid?
in the formula sodium phosphate na3po4 how many moles of sodium are represented? how many moles of phosphorus? how many
When 26.0 mL of 0.675 M H2SO4 is added to 26.0 mL of 1.35 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted.
During an experiment, a student adds .339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL,
Estimate the magnitude of the absoulte error and percent error in the measured sample volumes. Compare those errors to the errors that occur when measuring volumes of approximately 8mL
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