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An empty beaker weighed 45.897g. After some crushed ice was added to it, the total weight was 68.034g. The ice was poured out into another container leaving a wet, empty beaker that weighed 46.146g. How much ice was poured into the other container? How much ice was originally weighed out?
Calculate the pH of a solution prepared by dissolving .370 mol (HCO2H) and .230 mol (NaCO2H) in H2O sufficent to yeild 1.00L of solution. Ka=1.77x10^-4
Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
A 1.80 g sample of a large boimolecule was dissolved in 18.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule.
A modern chealting agent used for this purpose is succimer (C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning.
For the reaction 2HCl + Na2CO3 to 2NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP?
Calculate the mass of propylene glycol that must be added to 0.500 kg of water to reduce the vapor pressure by 4.60 torr at 40 degrees celcius.
What is the kinetic energy in joules of a 1183 motorcycle moving at 63.
Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- -> Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)?
calculate the volume of water needed to dilute the anti-freeze from 0.20M in 0.260 litres to 0.13M.
how I resolve it, A 1.25 gram sample of methane is container in a 850.0 mL flask at295.65 K.What is the pressure of this gas?
The ultimate analysis of a coal is 80% carbon, 4% hydrogen, 2% oxygen, and the rest ash. The flue gases are 60 F and 14.7 psia (15.6 C and 101.3 KPa) when sampled and are 80%, nitrogen, 12% carbon dioxide
Write a chemical reaction equation that shows what happens when HNO3 is added to MnCO3. Remember to include the physical state symbols.
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