you have .41g of citric acid in water to make 128mL of a solution. how many g of citric acid are in 20mL of the solution
you have .41g of citric acid in water to make 128mL of a solution. how many...
biochemistry
Question 3.(9 pts) You need to make up a 600 ml of a 40 mM solution of Citric acid DH 7.5 from a 1M stock of Citric acid pH 6.4. Citric acid pKa 6.4. Describe how you would make up this solution. Show work and all calculations
Question 3.(9 pts) You need to make up a 600 ml of a 40 mM solution of Citric acid DH 7.5 from a 1M stock of Citric acid pH 6.4. Citric acid...
Consider citric acid, H3C6H5O7: a. How many acidic hydrogens does the acid have? b. What is the Ka for loss of the first acidic hydrogen? c. What is the Ka for the weakest loss of hydrogens? d. Write reactions representing successive losses of the acidic hydrogens in water. e. Explain using Le Chatelier's principle what happens as strong acid is added to each reaction.
How many turns of the citric acid cycle are implicated in accounting for the net oxidation of each of the following compounds to carbon dioxide and water: (a) glucose, (b) glyceralde-hyde, (c) citric acid, (d) succinic acid?
Citric Acid has 3 pKas: 3.13, 4.76, and 6.39. How many grams of sodium citrate monobasic (HOC(COONa)(CH2COOH)2) and citric acid (HOC(COOH)(CH2COOH)2) are needed to make 300 mL of a 10 mM citrate buffer of exactly pH 2.8? The molecular weight of sodium citrate monobasic (NaH7C6O7) is 214.11 g/mol and that of citric acid (H8C6O7) is 192.12 g/mol.
5) What is the concentration in mM of 4.80 g of citric acid (CoHsO7) dissolved in water to make 1.00 L? (The molar mass of citric acid is 192 g/mole) 6) The concentration of sugar in a soft drink is measured to be 10.5%. How many grams of sugar are in 125 g of the drink?
How many grams of citric acid, C6H8O7 (Mm = 1925 g / mol), must be added to 50.0g of acetic acid (Tb = 118.5 C, Kb = 3.07 C / m) to prepare a solution with a boiling point of 120.3 C?
If you have 1M/L stock solution, how would you make 20mL of 20mM from the solution?
Five grams of citric acid (MM=180.0 g/mol) are dissolved in 100.0 g water. the resulting solution reacts with 65.3 mL of strontium hydroxide solution. the balanced net ionic equation for the reaction is H3C5H5O7 (aq) +3OH^-(aq)-->C5H5O7^3- (aq) + 3H2O what is the molarity of the strontium hydroxide solution? the answer is .638 in my answer key but I don't know how to get it. thanks
7. How many grams of chlorous acid must be dissolved in water to make 100 mL of a HClO2 solution whose pH is 2.40? Ka for HClO2 = 1.1 x 10-2. Molar mass of HClO2 = 68.5 g/mol.
A 1.18 M solution of citric acid (H3C6H507, MW=192.122 g/mol) in water has a density of 1.8 g/mL. What is the mass percent of this solution? Select one: a. 75.42% O b. None of the choices is correct c. 3.93% Od. 12.59 % O e. 68.21 %