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Question: Calculate the amount of Tris (hydroxlmethyl) aminomethane (Tris) necessary to make 100mL of a 0.100M Tris buffer that is equimolar in Tris-base(MW=121.1 g/mol) and Tris-HCl(MW=157.6g/mol).
What is the ground state electron configuration for the boron atom? What term symbols can arise from this electron configuration?
describe in brief the risk connected with solutions of 1m nh3 1m hcl and 1m naoh?external pressure of 13.0 atm had by
What is the hydronium-ion concentration in a 0.025 M solution of carbonic acid, H2CO3? For carbonic acid,
Carbon tetrachloride was widely used for many years as a solvent until its harmful properties became well established. Carbon tetrachloride may be prepared by the reaction of natural gas (methane, CH4) and elemental chlorine gas in the presence of..
Explain briefly why CuSO4 is more soluble in water than in organic (nonpolar) solvent.
The freezing points of 0.0935 m ammonium chloride and 0.0378 m ammonium sulfate in water were found to be -0.322 C and 0.173 C. What are the values of the van't Hoff factors for these salts
In the chemical kinetics experiment, describe how you plan to mix the dye and bleach to start the reaction and when you expect to start recording the time? Include the volumes of dye and bleach solution you intend to mix? How are you going to make..
When zinc chloride (ZnCl2) reacts with NH3 solution, a white crystalline compound Zn(NH3)nCl2 is produced. A student used the procedure in this molecule to determine the mass percent of NH3 in Zn(NH3)nCl2.
A chemist is commissioned to produce 50,000 liters of 0.550 M aqueous phosphoric acid. The chemist can purchase solid, 98.64% pure, phosphoric acid to dissolve in water. How many grams of this reagent are required?
Calculate the osmotic pressure of a solution containing 19.10 of hemoglobin in 17.0 of solution at 19. The molar mass of hemoglobin is 6.5*10^4 g/ml
What pH is needed to increase the solubility of Mn(OH)2 to 2.5 x 10-3M? Ksp for Mn(OH)2 = 1.6 x 10-13.
At 25?°C, the vapor pressure of diethyl ether is higher than the vapor pressure of its isomer n-butanol, because A. diethyl ether has a higher density than n-butanol.
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