How many grams of cholesterol are in 270 mL of blood?
Express your answer using two significant figures.
Aqueous ammonia is commercially available at a concentration of 16.0 M.
How much of the concentrated solution would you use to prepare 600.0 mL of a 1.45 Msolution?
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How many grams of cholesterol are in 270 mL of blood? Express your answer using two...
The concentration of cholesterol (C27H460) in blood is approximately 5.0mM. How many grams of cholesterol are in 224mL of blood? molar masses: C=12.001 H=1.008 O=16 • Answer to 3 decimal places • Read about significant figures and rounding in the Helpful Resources page! • Do not include units when reporting your answer • Use standard notation or scientific notation as accepted by Blackboard • e.g. 0.001 or 15-3, not 1 x 10^-3
How many grams of CaCl2 are present in 28.0 mL of a 0.520 M solution? Express your answer using three significant figures
YPart A How many grams are in 2.20 mol of sodium chloride (NaCl)? Express your answer numerically in grams. View Available Hint(s) Submit Part B Correct Significant Figures Feedback: Your answer 128.5 g was either rounded different different number of significant figures than required for this part Part B How many water molecules are in a block of ice containing 1.50 mol of water (H2O)? Express the number of molecules numerically View Available Hint(s) molecules of H2O Submit
18) How many grams of ammonium chloride are in 23.5 ml of a 0.887 M ammonium chloride solution? Make sure to express in the correct # of significant figures
Part A How many grams of phenylephrine is needed to prepare 50. mL of a 14 % solution for a glaucoma patient? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Provide Feedback
Part A: How many grams of dry NH4Cl need to be added to 2.40 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.71? Kb for ammonia is 1.8×10^−5. Part B: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 17.0 mL of HNO3. Part C: Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract...
g#/assignment/6338912 VitemView?offset- next&assignmentProblemID-100453845 80 g of Na2SO4 in 270 mL, of Na2SO4 solution Express your answer using two significant figures. Submit Request Answer ? Part B 44 g of sucrose in 300 mL of a carbonated drink Express your answer using two significant figures. %m/v
PART A: I) How many grams of CoI2 are there in 225 grams of an aqueous solution that is 21.0 % by weight CoI2. II) An aqueous solution of iron(III) sulfate, Fe2(SO4)3, contains 9.24 grams of iron(III) sulfate and 17.6 grams of water. The percentage by mass of iron(III) sulfate in the solution is %. Part B: I) A solution was made by dissolving 2.39 g sodium chloride () in 27.9 g water (h20). What is the mole fraction of...
How many grams of the CuSO_4 provided will be needed to make 100 mL of a 0.1 M solution? Give your answer with four significant figures in grams.
How many grams of potassium bromide are needed to prepare 300.0 mL of a solution that is 2.0%w/v? Do NOT include any units, just answer with the NUMBER of grams, for example: 4.2 or 13 or 220. Type your response What is the new concentration, if solvent is added to 20.0 mL of a solution that is 4.0%w/v, until the total volume of the solution is 100.0 mL? (DO NOT include any units with your answer.) Type your response 25...