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Problem- If you need to make a phosphate buffer made with NaH2PO4 and Na2HPO4 that is 0.010M total concentration and has a pH of 7.4, how much of each salt would you need to weigh out in order to make 150mL of total buffer solution?
I desire you to define the chemistry in the problem
The formula Co(NH3)5CO3Cl could represent a carbonate or a chloride: write the two formulas, draw the two structures and name them below.
Draw a complete mechanism for the reaction that occurs in this solvolysis experiment showing all the intermediates and using curvy arrows to show electron movement
A student calculated an averagelue of 4289 for a siyle's law constant k. Based on the number ofgnificant figures in the measured thantities, how many significant figures should Bois result have after proper qu rounding
What is the OH- in a solution that has a pH of 4.92? Give your answer to 3 significant figures using E-notation (i.e., 1 number before and 2 after the decimal point)
Gout is caused by an error in nucleic acid metabolism that leads to a buildup of uric acid in body fluids, which is deposited as slightly soluble sodium urate (C5H3N4O3Na) in the soft tissues of joints.
1 l of a buffer composed of acetic acid and sodium acetate has a ph of 4.3. adding 10ml of 2m sodium hydroxide solution
A solution is prepared by measuring 33 mL of the concentrated HCl, adding it to water, and diluting to 0.500 L. Calculate the approximate molarity of this solution from the volume, percent composition, and density.
The first equivalence point was at 7.59mL and the second equivalence point was at 14.91 mL. My calculated pKa1 is 2.01 and pKa2 is 5.71. What is the molarity of the maleic acid
zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose vapor pressure
Calculate: (a) The partial pressure of each component. (b) The mass fraction of methane. (c) The average molecular weight of the gas mixture. (d) The density of the gas mixture in kg/ m3. write the steps please
Describe how nickel is separated from iron and manganese. Include the name or formula of the soluble nickel species produced
q1. what is the mass number of an iron atom that has 28 neutrons?q2. calculate the number of neutrons of 239pu.q3.
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