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Using a sample of a diatomic gas occupies a volume of 2.35 Litres at a pressure of 0.979 atm and a temp of 26.4 C. if the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
Calculate thePH at the equivalence point in titrating 0.100 M solutions of each of the following with 9.0×10?2 M NaOH for hydrobromic acid (HBr). HCLO2 chlorous acid, C6H5COOH benzoic acid
Consider the reaction 2ZnS + 3O2 → 2ZnO + 2SO2. Suppose that you wanted enough O2 to completely react with 500. g of ZnS. What mass of O2 should be present?
What evidence do you have that your product consists of a single geometric isomer or is a mixture of isomers? Does the melting point give such information
The molality of the solution is determined to be .0480m. What is the molar mass of the substance?
How much energy in J must be added to 36.04g of solid water at -15 celcius degree to conver it to liquid water at 12 celcius
Calculate the electrostatic energy of the system and compare this energy to the Hydrogen atom in its ground state.
Count Rumford observed that using cannon-boring machinery, a single horse could heat 11.6 kg of water (T = 273 K) to T = 355 K in 2.5 hours
The disinfectant hydrogen peroxide (H2O2) decomposes to form water and oxygen gas.How much O2 will result from the decomposition of 3.21 mol of hydrogen peroxide?Answer in units of mol.
Calculate the energy emitted by an electron when it drops from energy level 4 down
Draw the product of the aldol-dehydration reaction with diethylketone and p-tolualdehyde
Describe in detail how you would prepare a solution with a concentration near 0.100 M from a 0.650 M stock solution. Calculate the final concentration of the diluted solution (it won't be exactly 0.100 M). It should be within 10% of 0.100 M.
A sample of helium gas, He, at 22 degrees C and 101.3 kPa occupies a volume of 2.54L. At a constant pressure, what volume will it occupy at a liquid nitrogen tempature of -197 degrees C?
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