Molecular weight and mole concept explained in this, Ask an Expert

Academics

Molecular weight and mole concept explained in this solution

The molecular weight of NaOH is 40. the molecular weight of a widely used buffer, HEPES, is 255. HEPES has a pK of 7.5 and is available in the acid form. how many grams og HEPES and NaOH are needed to produce one liter of a 0.5 molar solution of pH 7.5? of pH 7.0? of pH 8.5?

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M9407464

Have any Question?Write your Review or question?

Related Questions in Chemistry

0394 mol of a solid was dissolved in 340 ml of water at 269

0.394 mol of a solid was dissolved in 340 mL of water at 26.9 oC. After the solid had fully dissolved, the final temperature of the solution was 31.6 oC. What is the molar heat of solution of the substance?

Assume that you dissolve 102 g of a mixture of naoh and

Assume that you dissolve 10.2 g of a mixture of NaOH and Ba(OH)2 in 227.0 mL of water and titrate with 1.47M hydrochloric acid. The titration is complete when 107.8 mL of the acid has been added. What is the mass (in gra ...

The combustion of naphthalene c10h8 which releases 51501

The combustion of naphthalene (C 10 H 8 ), which releases 5150.1 kJ/mol, is often used to calibrate calorimeters. A 1.05 - g sample of naphthalene is burned in a calorimeter, producting a temperature rise of 3.86 degrees ...

A student is doing the experiment chemical formulas of

A student is doing the experiment Chemical Formulas of Copper Sulfide by heating copper with excess of sulfur at very high temperatures using a Bunsen burner. Copper and sulfur react stoichiometrically and excess of sulf ...

What roman numeral is required in the name of the following

What roman numeral is required in the name of the following compound? Ag2SO4 What roman numeral is required in the name of the following compound? CuCO3 What roman numeral is required in the name of the following compoun ...

H2g i2g 2hitemperature 731 kif 160 mol h2nbspand 420 mol

H 2 (g) + I 2 (g) = 2HI Temperature = 731 K If 1.60 mol H 2 and 4.20 mol I 2 areplaced in a 1.08 L vessel What is the equilibrium concentration of H 2 in the gaseous mixture? The equilibrium constant is K = 49.7

Match the reaction provided on the left with the correct

Match the reaction provided on the left with the correct reaction classification/type on the right [NOTE the reaction equations are not balanced] . Reaction classification/types can be used more than once or not at al ...

You are required to read the following case study and

You are required to read the following case study and prepare a Project Feasibility Study and Timeline based on the information contained in the case study. Residential Duplex Development Project You own a real estate ...

A gas is confined to a cylinder with a moveable piston to

A gas is confined to a cylinder with a moveable piston (to allow the gas to expand or contract) under a pressure of 1 atmosphere. When the temperature of the gas is increased, 850 J of heat is added, and the gas expands, ...

What is the mass of naoh present in grams given that a 100

What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert