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Tris is widely used in a biochemical laboratory. Its acid dissociation constant is 8.32x10^-9. You have available at your lab bench a 0.1M solution of Tris in its protonated form, 0.1M solution of HCl and NaOH, and ample distilled water. Describe the preparation of a 1 L solution of 0.02M Tris buffer, pH=7.8.
1 what polymer is made from the monomer vinylidene chloride?2 what additional polymer is made from this alkene
How many grams of cholesterol are in 230 mL of blood? The concentration of cholesterol (C_27H_46O) in blood is approximately 5.0mM.
What is the temperature of 0.46 mol of gas at a pressure of 1.3 atm and a volume of 11.7 L ? Express your answer using two significant figures.
Using a band diagram, explain how magnesium can exhibit metallic behavior when its 3s band is completely full.
Aluminum and oxygen react according to the following equation: 4 Al (s) + 3 O2 (g) → 2 Al2O3 (s) What mass of Al2O3, in grams, can be made by reacting 4.6 g Al with excess oxygen
If the average collection period is 55 days, what is the receivables turnover?
The thermocouple is then placed in boiling toluene at the same pressure and provides an output of 12.59 mA.
The magnesium and calcium ions present in seawater([Mg2+] = 0.059 M and [Ca2+] = 0.011 M) can be separated by selective precipitation with KOH.
select the true statements out of these given statements as 1the formal charge on the p atom is zero. 2it is best
Solid potassium ,K , can be reacted with molecular oxygen , O2 to form K2O. If 4.3 g of potassium are reacted with 2 dm^3 of pure O2 at 20 degree celsius and 101.325 kPa what will be the mass and/or volumes of all substances present after the reac..
a sample of an element has a volume of 81 ml and a density of 1.73 gml. what is the mass in grams of the sample round
Manganese dioxide reacts with hydrochloric acid as shown in the chemical equation MnO2(s) + 4HCl(aq)-->MnCl2O(l) + Cl2(g) What is the percent yield of the reaction if 5.75 g of H20 is obtained when 28g of MnO2 and 28g of HCl are mixed and allowed ..
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