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Given unlimited quantities of 95% alcohol and distilled water, prepare 200ml of 40% alcohol.
Do the calculations to make 200ml of 0.1M sodium acetate buffer with a pH of 5.1 starting with 5.0M acetic acid and 1.0M NaOH ****show calculations***** 1.How much acetic acid is needed? 2.What is the ratio of Ac- to HAc at pH of 5.1? 3. What fraction of total acetate is Ac-at pH 5.1 4. How much OH- is needed to obtain 68.7% Ac-?
So Question 4 asks, Calculate the amount of solid sodium hydroxide needed to make 200mL of a 0.2M solution. My work is as follows: .2mol/1L•.200L=0.04mol .04mol•40g/1mol= 1.6 grams Question 5 asks, If 10mL of the solution made in question 4 is used to make another 125mL solution of NaOH, what is the new concentration?
A reminder of the henderson- equation Do the calculation to make 200ml, of 0.1M sodium aculate buffer with a pathe of 5.1 with 5 xm acis and 1 CM NaCH. Calculate the total amount of acetric acid needed. Calculate the radio of the two form of that will when the pH is 5.1 Use this ratio to calculate the % of calculate that will be in the A form. Assume that each NaOH will convert one. Use this plus the...
Question 1 : a) Show the calculation of the mass of Al2(SO4)3 needed to make 200ml of a 0.250 M solition. report your answer to 3 significant figures. b) show the calculation of the volume of 0.667 M solution which can be prepared using 37.5 grams of Ba(NO3)2 c)show the calcultion of the freezing point of a solution made by dissolving 15.6 grams of the nonelectrolyte C3H6O3 in 200 geams of water. Kf for water is 1.86, freezing point of...
using C1xV1=C2xV2: how much 95% alcohol is required to make 200 mls of a 5% alcohol?
How would you make 200ml of 0.5% Trifluoroacetic acid?
What allylic alcohol and DET isomer are needed to make the
following chiral epoxide using a Shapless asymmetric epoxidation
reaction? Be sure answer all parts. Draw the allylic alcohol using
a skeletal structure.
3 attempts et Check my work Be sure to answer all parts. What allylic alcohol and DET isomer are needed to make the following chiral epoxide using a Sharpless asymmetric epoxidation reaction? Be sure to answer all parts. Draw the allylic alcohol using a skeletal structure. Report...
You are asked to make a 50 ppm solution of benzene in alcohol. You have 200 mL of alcohol (density 0.84 g/mL). How many mL of benzene (density 0.96 g/mL) do you need to add to add to the alcohol to make it 50 ppm Benzene in mixture? (10)
How much heat is needed to vaporize 225 g of rubbing alcohol C3H8O at its boiling point? The enthalpy change of vaporization of rubbing alcohol = 0.664 kj/mol.