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If all of the energy from the emitted alpha particles is absorbed by the animal's tissues, and if the energy of each emission is 7.77×10?12J what is the dose in rads to the animal in the first 4.0 hours following the ingestion of the radioactive material?
Indicate what precipitates, if any, form when solutions of each of the following are added to a solution containing the Group I cations.
Phosphorus trichloride, PCl3, has a molar mass of 137.32 g/mol. What is the mass of 0.285 moles of PCl3?
Write the balanced reaction equation for the precipitation of calcium carbonate from potassium carbonate and calcium chloride.
A reaction was conducted in benzene as the solvent. Because the reaction was very exothermic, the mixture was cooled in a salt-ice bath. This was a bad choice. Why?
The compound KB5O8·X H2O was analyzed and found to contain 24.6% of water. If the formula weight of this compound is 293.15 g/mol, what is the number of water molecules (X) in the formula?
Ksp for PbCrO4 at 25oC is 2.0 x 10-14. A sample of 1.000 mg of PbCrO4 is added to 1.0 L of water at this temperature.
A mixture of nitrogen and liquid ethanol in a closed constant-volume container has a partial pressure of 101 mm Hg of nitrogen and 66.2 mmHg ethanol at 27 C (300 K)
a 125 g sample of an unknown metal requires 1351 j of energy to heat it from 25 degrees celcius to 112 degrees celcius. what is the specific heat capacity of the unknown metal.
What volume of 3 M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH (2.17 mL excess) present after the initial reaction?
The pH of uncontaminated rain water is about 5.6. The pH of rain falling in Cleveland, OH is 4.2 and that in Omaha, NE is 5.5. What is the concentration of hydrogen ions in the rainfall of each city? [H] 6.3 ^ -5 for Cleveland.
"If 2.3g of Sodium reacted with 1.8g of water, what would be the total mass of Sodium Hydroxide and hydrogen produced? Explain your answer"
How do you calculate H2 volume needed when you are given power output required is 1kW, V .78, run for .6 hours? I only have a rate equation to work
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