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a flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at 21.O C and 780 torr and heated. At what temperature will it burst?
How many grams of oxygen are collected in a reaction where 265 mL of oxygen gas is collected over water at a temperature of 298 K and a total pressure of 709 torr
Calculate the density of a block.
A sunscreen preparation with a density of 2.82 g/mL contains 3.55% by mass zinc(II) oxide. Each tube is filled with 185.0 mL of sunscreen. If you are the manufacturer and use 5.00 lb of zinc(II) oxide.
A 2.15 g sample of white solid was vaporized in a 345 mL vessel. If the vapor has a pressure of 985 mmHg at 134°C, what is the molecular weight of the solid
What is the average mass of calcium in each sample? (Assume that the relative uncertainties in atomic mass are small compared the uncertainty of the total mass.)
A balloon originally has a volume of 4.39L at 44 C and a pressure of.959atm. The balloon must be cooled to what temperature in order to reduce its volume to 3.78 L?
Calculate the concentration of IO3- in a 3.02 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 × 10-13. Assume that Pb(IO3)2 is a negligible source of Pb2 compared to Pb(NO3)
What are five general properties of aqueous acids? Name some common substances that have one or more of these properties.
Determine the numerical values of the parameters A, B, and C in the Antoine equation relating vapor pressure of pure substances to temperature using an appropriate linear regression procedure.
If vitamin A is 83.86% Carbon and 10.56% Hydrogen by mass then determine the the molecular formula this vitamin A.?
What volume of 0.550 M Na3PO4 is required to precipitate all the lead(II) ions from 160.0 mL of 0.700 M Pb(NO3)2?
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
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