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Element X has two natural isotopes: X-6 (6.015 amu) and X-7 (7.016 amu). Calculate the atomic mass of the element X given the abundance of X-7 is 92.5%
How many calories of heat are necessary to raise the temperature of 350 ml of water from 1.00oC to 5.00oC.
Solid calcium oxide reacts with solid ammonium chloride to produce gaseous ammonia, gaseous water, and solid calcium chloride. If 112 grams of calcium oxide were mixed with 224 grams of ammonium chloride
36.8mL of hydrogren gas, from the reaction of a piece of magnesium ribbon with hydrochloric acid, are collected over water in a eudiometer. The temp of the hydrogen gas at 21C, and the atmospheric pressire is 768mmHg.
How many grams of each reactant remains after the reaction is complete and how many grams of each product is produced
What mass of O2 is required for the complete combustion of 68.9 g of pentane, C5H12, to CO2 and H2O?
Calculate the molality of a solution prepared by dissolving 112. grams of copper (II) sulfate in 450. mL of water at 25°C.
What mass of magnesium is required to produce enough gas to exert pressure of 0.50 atm in a 50.0 mL flask at a temperature of 25.0 degrees Celcius? show all work.
What mass of precipitate forms when 124.5 mL of 0.660 M NaOH is added to 517 mL of a solution that contains 10.9 g aluminum sulfate per liter?
What is the resonance structure that best describes the overall structure of the SNO+1 ion
calculate the volume of 0.050M Barium Hydroxide solution that contains the same number of moles
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 Angstrom. How many moles of gold fit in a sheet with a length of 51.6 nm, a width of 24.3 nm, and a thickness of 16.7 nm?
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
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