determine the amount of solid NaBr needed to prepare 10mL of 0.5 M solution
Calculate the amount of 0.1 M sucrose solution and the amount of dH2O needed to prepare 100 mL of unbuffered 20 mM sucrose. (Hint: use the formula c1v1=c2v2 to calculate the amount of sucrose stock solution needed) Amount of 0.1 M sucrose solution needed? Amount of dH2O needed?
How many grams of solid KCl are needed to prepare 250.0 mL of 0.235 M solution?
PROCEDURE 1. Prepare three 100 mL beakers for this experiment. Use the molecular weights on the bottles to calculate the amount of solid to use. a. *b. Prepare 25 mL of a 10 M NaOH solution (concentrated NaOH solution). Calculate the amount of solid NaOH needed to make. *c. Prepare 50 mL of a 20 mM histidine solution (calculate the amount of solid histidine needed to make it, m.w. 209.6 g/mol). In the fume hood, add 3 drops of concentrated...
Perform calculations to determine the volume of the 1.0x10-5 M stock solution needed to prepare 10.0 mL of a 2.0x10-6 M solution. Perform calculations to determine the volume of the 2.0x10-6 M solution needed to prepare 10.0 mL of a 5.0x10-7 M solution.
So Question 4 asks, Calculate the amount of solid sodium hydroxide needed to make 200mL of a 0.2M solution. My work is as follows: .2mol/1L•.200L=0.04mol .04mol•40g/1mol= 1.6 grams Question 5 asks, If 10mL of the solution made in question 4 is used to make another 125mL solution of NaOH, what is the new concentration?
Calculate the amount of copper (II) sulfate needed to prepare 100. mL of 0.0100 M solution
4. How many grams of KCl are needed to prepare 20 mL of a 0.5% (m/v) solution?
5. Molality, m =- The molality of NaBr solution is 1.25 m 1.25 mole of NaBr I 1.0 kg of the solvent Question 17. Calculate the number of g solvent that contains 12 g NaBr of 1.25 m solution of NaBr. [8.14E2 g solvent] Question 18. Calculate the molality of a solution containing 17.2 g of ethylene glycol (CzH02 ) dissolved in 0.500 kg water. [5.54E-1 m) Question 19. What is the formula of sucrose? Calculate the molality of a...
solid AgNO3 is slowly added to a solution that is 0.0010M in NaCl, NaBr, and Nal. calculate [Ag+] required to initiate the ppt of each solver salt. assume the solution volume does not change in the process
Determine the molar solubility of AgBr in a solution containing 0.150 M NaBr. Ksp (AgBr) = 7.7 × 10-13.