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Problem- Part 1- You have diluted 9mL of nominally 6M NaOH to 500mL. What is the approximate molarity of the base?
Part 2- A 20.00 mL sample of the standard KHP (KHC8H4O4) solution requires 24.16 mL of your base to reach the end point. Write the equation for the reaction.
Part 3- Calculate the molarity of the base in question 2?
Part 4- 24.37 mL of an unknown acid is titrated with 40.62 mL of the stardr from number 3 above. What is the molarity of this acid?
Please demonstrate the entire work. I am thanking you in advance
Could a percent transmittance reading of 0.00 be used in calculations? Briefly explain. Suggest a procedure that the student could follow to finish the experiment satisfactorily without weighing out a new sample of copper wire.
The speed limit on many Australian highways is 100 km hr-1. Convert this to miles hr-1 (round to nearest whole number)
solution has a transmittance of 0.309 in a 1.00 cm cell at 520 nm. Calculate the molar absorptivity of the solution.
when relatively small amounts of magnesium burn the fires are extinguished using commercially available dry powder. why
1. suppose that you suspend a 10kg mass of iron from a height of 200meters. the outside temperature is 300ka. what is
Write the reactions of cinnamic acid with sodium bicarbonate and sodium hydroxide. What is the gas that is evolved when cinnamic acid reacts with sodium bicarbonate
The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water.
Problem- Calculate the pH at the equivalence point for the titration of 0.220 M methylamine (CH3NH2) with 0.220 M HCl. The Kb of methylamine is 5.0* 10^-4.
if a sample of the compound contains 9.41x10^21 lithium ions, how many oxide ions does it contain? show units, show work and answer in scientific notation.
A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units
Show by explicit integration that the 1s and 3s wave functions of the hydrogen atom are orthogonal. Note that in integrals over r
The pressure of the gas is 365 torr, and the temperature is 45, ^{\circ}C. If the temperature changes to 60\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container
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