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What would be the formula for the compound sample If a sample of a compound contains 1.36 mol of nitrogen atoms and 2.72 mol of oxygen atoms?
Considering the Given data: Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.042 g, Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.783 g,Volume of water displaced from the squirt bottle 144 mL
Temperature of the Carbon dioxide(g) 293.6 K, CO2(g) pressure 0.986 atm then compute the mass of Carbon dioxide (g), and also determine the no of moles, density of carbon dioxide?
if 5.50 mol calcium carbide reacts with an excess water, how many moles of acetylene will be produced?
Given: Volume of He sample = 72.5mL Temperature = 30 C Atmospheric pressure = 785 mmHg Equilibrium vapor pressure of water at 30 C = 31.88 mmHg What is the ratio of average molecular velocity between He(g) and H2O(g)
If the pressure of 50.0 mL of oxygen gas at 100 °C increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume temperature remains constant.
Which monatomic ion has a charge of 1+ and the electron configuration [Kr]4d105s2? Write the element symbol and charge.
A sample of MgCl2 is known to be contaminated with NaCl. A 3.47-g portion of the sample is dissolved in water and treated with an excess of AgNO3 solution.
At a certain temperature* (probably not 25 ºC), the solubility of silver sulfate, Ag2SO4, is 0.023 mol/L. Calculate its solubility product constant for this temperature.
Working with partition function and entropy what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K?
A 4.50-g sample of LiCl at 25.0 C dissolves in 25.0 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C.
A patient is given 0.055mg of technetium -99m, a radioactive isotope with a half-life of about 6.0 hours.
What mass of carbon dioxide is produced from the complete combustion of 7.50×10^-3g of methane?
1.00 g of NH4Cl (s) is completely decomposed by heating to 325 °C at 1.00 atm. What volume of gas will be produced? NH4Cl (s)= HCl(g) + NH3(g)
A sample of helium has a volume of 3 liters when the pressure is 500 torr. What volume does the gas occupy at 300 torr?
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