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1. Formic acid, HFor, ha a Ka value equal to about 1.8 x10-4. A student is asked to prepare a buffer having a pH of 3.4 from a solution of formic acid and a solution of sodium formate having the same molarity. How many milliliters of the NaFor solution should she add to 20mL of the HFor solutionto make the buffer?
2. How many mL of 010 M NaOH should the student add to20 mL 0.10 M HFor if she wished to prepare a buffer with a pH of3.4, the same as in Problem 4?
Draw Fischer projection formulas for the products likely to be obtained from the bromination of (Z)-2-pentene with Br2/acetic acid. Identify the chiral centers with asterisks and label each center as R or S.
explain how to identify a molecular compound based on a: chemical formula and on a systematic name
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What must the concentration be, of each member of the buffering acid/base pair, if the reaction is expected to release 0.1 millimoles of H+?
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1-bromopentane reacted with 1. Na CCCH3 2. HgSO4,H20,H2SO4 3.BrMgCh2Ch3 4.H+, H20 There should only be one product this is a multi step reaction
What volume in mL of 0.075 M NaOH is required to neutralize the following solutions? A. 200 mL of a 0.0500 M H2C2O4(diprotic acid) solution.
The hydrogen gas formed in a chemical reaction is collected over water at 30 at a total pressure of 727 .What is the partial pressure of the hydrogen gas collected in this way
Which of the following underlined items is not an intensive property (a) A chemical reaction reqyuires 3.00g of oxygen (b) Solid copper hydroxide is blue colored (c) the density of helium at 25degree celsius
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