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A. Consider an unknown that is approximately 50.% KHP. What mass of the unknown would be required to react with 40. mL of 0.10 M NaOH? B. If 41.23 mL of 0.09824 M NaOH solution was required to reach the endpoint in a KHP titration and the sample weight was 1.6670 g, what is the %KHP (wt%) in the unknown sample?
What is the molality if a solution in which 15 g of I2 is dissolved in 500. g of alcohol?
If 43.2 ml of 0.105 M KMnO4 were required to reach the endpoint of a 14.8g bleach sample, what was the perrcentage of H2O2 in the sample?
Multiple choice questions in Radioactive Decay - electron emitted from the nucleus during some kinds of radioactive decay is known
What is the density of a block of marble that occupies 253 cm3 and has a mass of 752 g?
A solution formed by mixing 11.0 ml of 0.110 M HBr with 25.0 Ml of 0.190 M HCl. what is the ph of the strong acid?
A gas expands and does P-V work on the surroundings equal to 337 J. At the same time, it absorbs 177 J of heat from the surroundings. Calculate the change in energy of the gas.
explain in detail, using thermodynamics principles, why the mixing of pure chemicals to form homogeneous mixture is a so-called spontaneous process
Determine the molarity of a solution prepared by dissolving 4.50 mol of NH4Cl in sufficient water to make 2.00 L of solution.
Rubidium has two naturally occuring isotopes. The relative abundance of rubidium-85 is 72.17%; its atomic mass is 86.91 amu. Determine the average atomic mass of rubidium.
Calculate the molar mass and the molecular formula of the solid. (Ki for diphenl is 8.00'C/m)
how many milliliters of .1229 M NaOH are needed to completely neutralize 50.00mL of .1012M H2SO4 solution
If 145 mL of 1.10 M KCl are diluted to 515 mL, what is the molarity of the final solution?
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