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What is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55? The half life of Potassium 40 is 1.28 x 10^9 years.
If 50.0 ml of the solution prepared in 6 is reacted with an excess of sodium chloride, how many grams of silver chloride should be produced.
Urea, NH2CONH2, is a nonvolatile nonelectrolyte. Calculate the boiling point of a solution of 30.0g of urea in 250g of water
from your understanding of collniative properties how would you design an experiment to measure the freezing point of a
The equilibrium internuclear distance of deuterium iodide, DI, is 160.4 pm, where 1 pm = 1x10-12m. The relevant atomic masses are: mD = 2 amu and mI = 127 amu
Write a balanced equation for the neutralization of potassium hydrogen phthalate (C8H5O4K) with sodium hydroxide. Calculate the mass of potassium hydrogen phthalate that neutralizes 15 mL of an ~0.040 M NaOH solution.
Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte.a)LiClO4 b)HClO c)CH3CH2CH2OH d)HClO3 e)CuSO4 f)C12H22O11
How many grams of acetic acid is this. If the mass of analyte is 10.20 grams, what is the mass % of acetic acid in the analyte
A sample of a gas occupies a volume of 323 mL at 625 torr. At constant temperature, what will be the new volume when the pressure changes to the following:
Look at the list of fabrics that are woven into the multifiber fabric. Which do you suspect will be the most difficult to dye? Explain why.
what volume of carbone dioxide ,measured at STP,would result from the reaction of 9.786 kg of oxygen with excess pentane
If a 190 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.21.0 , what is the average thickness of the sheet in meters?
a 24.6 ml volume of hcl solution reacts completely with a solid sample of magnesium carbonate producing 183 ml of
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