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A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L^-1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L^-1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass of Mg(OH)2 in the original sample? When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride and water.
copper is electroplated from CuSO4 solution. A constant curent of 4.39 A is applied by an external power supply. How long will it take to deposit 1.00x10^2g of Cu
Given that the atomic mass of carbon is given as 12.0107 g/mol, what are the approximate relative abundances of the two isotopes 12C and 13C?
A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second (3 × 109 molecules·s-1).
if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen
There is a one to one relationship between the number of moles of hydrogen gas evolved and the moles of Magnesium metal consumed in the reaction, therefore moles of H2 evolved = moles Mg consumed and the atomic weight of Mg = weight of Mg consumed..
what mass of Mg is formed from molten MgCl2 if a current of 1.8 amps is passed through the sample for 16.7 hours
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
How many mL of 0.380 M solution can be prepared by dissolving 4.00g of Ca(OH)2 in water?
The following is a first order reaction with a rate constant of 2.98*10>-3s-1: SO2CL2>>>>SO2+CL2. What is the half life for the reaction?
What is the maximum amount of O2 in grams that can be obtained from 2.00 x 102 g of nitroglycerin?
To provide energy for the human, the O2 is reduced to H2O duing food oxidation by the following reaction: Recall that 1 ampere is equal to a charge of 1 coulomb per second flowing past a point in a circuit.
Determine the empirical formula of a compound that is 32.79% Na,12.90% Al with the remainder F.If the molecular mass is approximately 200 amu
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