Estimating the overall order of the reaction
A reaction has a rate law, rate = k[A][B]2. What is the overall order of the reaction?
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An antacid tablet containing magnesium hydroxide instead of calcium carbonate was dissolved in 10 mL of 0.2893 M HCL. 10 mL of this solutions was tritated to endpoint with 25.20 mL of 0.1007 M NaOH. How much magnesium hydroxide was in the antacid
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium. Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC. Give your answer with three significant figures
Calculate the molarity (M) of a solution prepared by dissolving 13.7 g of HCl in enough water to make 2.25 L of solution.
Phosphorus is obtained primarily from ores containing calcium phosphate.If a particular ore contains 58.5% calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosphorus?
For the reaction: H2SO4(aq) + 2 KOH(aq) --> K2SO4(aq) + 2 H2O To find the concentration of H2SO4, a 25.00 mL sample was titrated with 0.8752 M KOH. It took 31.79 mL of KOH to reach the endpoint of the reaction. What is the concentration of the
If the blocks were placed at a temperature of 20oC, what will be the force of compression when the temperature reaches 40oC? The contact area between the block is 0.20m2. Will fracture occure?
Calculate the pH during the titration of 40.00 ml of 0.1000M NaOH Solution after the following additions of base a) 24.00 ml b)39.80 ml c)52.00 ml
The pH of 0.5 M HF is 1.88. Calculate the difference in pH when 6.06 g of NaF is added to 205.7 mL of this solution. Ignore any changes in volume. The Ka value for HF is 3.5 x 10-4.
What is the force of attraction between the two, if the separation is the Bohr radius? Give answer in nN (nanoNewtons), 2 significant digits. Make sure you use the Coulomb law written in SI units.
the earth undergoes over a specified period of time the amount of work required to build a house the heat generated by a chemical reaction carried out at constant temperature and pressure the enthalpy released by the combustion of a gallon of gaso
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