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Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
how many grams of ammonium nitrate are necessary to form 0.852 moles water.
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
A water sample is analyzed for a pollutant by the standard addition method . four solutions are prepared,each with a 10.00 ml aliquot of the water sample and varying amounts of a 10 ppm standard solutions of the pollutant
if 1.30 g of P-aminophenol is allowed to react with excess acetic anhydride, what is the theoretical yield of acetaminophen in moles. in grams
It is possible to detect NH3 gas over 10^-2 M NH3. To what pH must .1 M NH4Cl be raised to form detectable NH3
What is the approximate pH of a solution of the salt NH4(O2CCH3) (ammonium acetate)? No calculations -- only reasoning needed. pKa/pKb values in your notes
What is the Fe2+:Sn2+ concentration ratio in the following cell at 25C if the measured cell
If 10.3 mL of 0.100 N NaOH is used to bring 10.0 mL of juice to a pH of 8.20, what is the titratable acidity (g/L tartaric acid)? Assume tartaric acid is 75.0 eq/L.
a cook wants to heat 1.37 of water from 27.0 to 100.0 .if he uses the combustion of natural gas which is exothermic to
Why is sodium chloride added to the tea solution before extracting with ethyl acetate? 4 grams of calcium carbonate was added to 90 ml's of water in a flask
In the following reactions all reactants and products are gases. Which of the reactions, if carried out in a closed container at constant T, would proceed with an increase in pressure
Calculate the pH at the equivalence point if 25.00 mL of 0.010 M barbituric acid (HC4H3N2O3) is titrated with 0.20 M NaOH. (Ka barbituric acid = 1.0 x 10^-5).
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