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Concentrated HCl has a density of 1.19 g/mL and is 38.0% by mass HCl (the rest of the mass is water). How many mL of this concentrated solution do you need to add to a 250.0 mL volumetric flask to create a 0.0500 M HCl solution? Give your answer to the hundredths decimal place and do not include any units. The MW of HCl is 36.46 g/mol.
A compound with the molecular weight of 391.98 was determined to be 3.1 % Hydrogen, 31.5 % Phosphorous, and 65.4% Oxygen. Determine the empirical formula and molecular formula for the compound.
Explain why the bond dissociation energy for the C-C sigma bond in propane is lower than the BDE for the C-C bond in propene.
At volume of 0.200 M K2Cr2O7 will be required to oxidize the Fe2+ iron in 60.0 mL of .200 M FeSO4 solution?
The reaction of methane and water is a way to prepare hydrogen according to CH4(g)+H2O=CO2(g)+H2(g) a) If 995 g of CH4 reacts with 2510 g of water, how many moles of reactants and products are there when the reaction is finished
Sodium formate, HCOONa, is a weak base and undergoes hydrolysis in water. Determine the OH- concentration at equilibrium in a solution
A certain first-order reaction (A->product) has a rate constant of 7.50×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
The volume occupaied by 1 gigamole of liquid benzene at 25C. The volume occupied by 1 nanomole of Benzene as vapor at STP (assume an ideal gas)
a hemoglobin A1c that is slightly lower than normal. a slightly lower than normal release of insulin in reps once to increases in glucose
How many liters of chlorine gas, measured at STP, would be produced by the electrolysis of molten sodium chloride using a current
you observed that a high dilution of a young culture was plated on a medium known to support its growth, but after 48 hours of incubation, the plate showed no growth. Give two possible explanations for these results.
What minimum voltage is required to electrolyze anhydrous HF? Hint: the H-F bond is so polar that liquid HF is essentially composed of H+ and F- ions.
What is the composition in mole fractions of a solution that has a vapor pressure of 30. torr at 20°C? X C6H6 and X C7H8. What is the mole fraction of benzene in the vapor above the solution described in part (a)?
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