Please calculate how many mL of sodium acetate 16.4 % you would add to a 790mL bag of 0.8 % saline to make the solu...
Please calculate how many mEq of sodium are present is a 828ml bag of 0.41% saline containing 121.7mL of sodium acetate 16.4% (sodium acetate MW 82, NCI MW 58.5) Answer:
How many moles of solid sodium acetate (CH3COONa) would you need to add to reduce the percent ionization of a 0.20 M solution of acetic acid (CH3COOH) to 0.0060%? The volume of the acid solution is 2.00 L and you can ignore the slight change in volume that comes from adding the solid sodium acetate. (Hint: remember that you can make the assumption that the change in molarity is small)
1- a patient is receiving vancomycin 1.25 g every 8 hours in D5w. How many kilocalories will the patient receive in 24 hours? 2- if 60 g of 1% hydrocortisone is mixed with 80 g of 2.5% hydrocortisone, what is the percent W/W of hydrocortisone in the final mixture? 3 - if 3 teaspoonsful of dexamethasone intensol (1mg/ml) is diluted to 120ml with sterile water. What is the strength of the final solution in mg/ml? Express this result in percent...
Solutions practice problems. calculate how much of each ingredient you would need to make the solution CIRCLE YOUR FINAL ANSWERS. Be sure to include the correct units with your answer. Molecular weights: SDS-288.38 g/mol Tris (base) = 121.1 g/mol EDTA = 372.2 g/mol Sodium acetate 82.03 g/mol Tris maleate = 237.2 g/mol Magnesium sulfate heptahyrdate=246.5 g/mol Sodium hydroxide - 40.00 g/mol (can calculate the MW for simple compounds) 1) 200 mL of 25% SOS 2) 60 ml alkaline lysis buffer...
6. How many mL of 0.2 M sodium acetate should be added to 200 mL of 0.2 M acetic acid to make a buffer of pH 5.5? (refer to Table 2-2 on page 60 for pKa values). What is the molarity of the resulting buffer with respect to acetate (acetate + acetic acid)? 7. How many mL of 0.2 M HCl should be added to 50 mL of 0.2 M Tris base (Trishydroxymethyl aminomethane) to make a buffer of pH...
1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0 (pKa = 7.2) phosphate dibasic (the conjugate base). 2) What are the concentrations of acetate and acetic acid in a 0.2 M acetate buffer pH 5.3? The pKa for acetic acid is 4.76. 3)You have 100 ml of 0.1 M acetate buffer pH 5.2 (pKa 4.76). You add 10 ml of 0.1 M NaOH. Calculate the resulting change in pH and the buffering capacity...
Question 4. a.) Calculate the pH of a solution initially 0.1 M in acetic acid and 0.02 M in sodium acetate. The pKa for acetic acid is 4.76. b) Calculate the pH of the buffer if you add 10 ml of 0.1M HCl to 100 ml of the buffer in part a.
HELP WITH B and C please ? (molarity stoich)
How many grams of sodium nitrite are needed to make 2.50 L of 1.12 M solution? Calculate the number of moles of the precipitate formed when 525 mL of 0.500 M potassium iodide reacts with excess lead (II) nitrate. Balanced equation:___ Calculate the number of grams of precipitate formed when 2.00 L of 0.400 M calcium chloride reacts with excess silver nitrate. Balanced equation: How many milliliters of a 1.5 M...
PLEASE SHOW WORK AND BE CLEAR!!!!
1. Calculate the following: How do you prepare 75 mL of 2% ferric chloride from a 10% solution? If you only have ferric chloride crystals, how much do you need? mL H20 mL 8 Esch How many mL of an 11% solution will 300 g of sodium chloride make? 8.25 mL hydrochloric acid diluted to 450 mL is what percent solution? 13.5 g of potassium dichromate will make how many mL of a 5%...
How many grams of ethanol, CH3CH2OH, would you dissolve in water to make 2.75 L of vodka (which is an aqueous solution that is 6.86 M ethanol)? Using the density of ethanol (0.789 g/mL), calculate the volumes of ethanol and water you need to make 2.75 L of vodka. Please show all work. Thank you!