Calculate the amount of Retin-A® 0.05% Cream in grams required to prepare 3 pounds of RHHA...
Calculate the amount of Retin-A® 0.05% Cream in grams required
to prepare 3 pounds of RHHA cream that has the following
formula.
Retin-A® 0.05% Cream 30 parts
Hydrocortisone 2.5% Cream 25 parts
Hydroquinone Powder 32 parts
Vitamin C 6 parts
A. 87.9 g
B. 806.5 g
C. 468.6 g
D. 366.1 g
E. 439.4 g
Homework Answers
Mass of RHHA cream in grams = mass in lb * 453.592 = 3 * 453.592 = 1360.78 g
Mass of Retin - A = parts of Retin A / total parts * mass in g = 30 / (30 + 25 + 32 + 6) * 1360.78 = 439.4 g
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Calculate the amount of Retin-A® 0.05% Cream in grams required
to prepare 3 pounds of RHHA...
3. Calculate the amount of solute, in moles, grams or milliliters, needed to prepare the following...
3. Calculate the amount of solute, in moles, grams or milliliters, needed to prepare the following solutions Show all the step by step solution: a. 1.00 L of a 3.00 M NaCl solution (moles of solute) b. 2.00 L of a 1.50 M NaOH solution (grams of solute) c. Milliliters of 1.50 M NaCl solution to obtain 4.78 g of NaCl
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of...
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of a 50.0 mM solution. Calculate the number of milliliters of 5 M NaCl required to prepare 875.0 mL of a 25 mM NaCl solution.
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of...
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of water from 25. °C to 50.0 °C. ice Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol Specific Heat (J/g (state) °C) helium He(s) 5.193 water H2O(1) 4.184 ethanol C2H60(1) 2.376 H2O(s) 2.093 (at -10 °C) water vapor H2O(g) 1.864 nitrogen N2(8) 1.040 air 1.007 oxygen O2(8) 0.918 aluminum Al(s) 0.897 carbon CO2(8) 0.853 dioxide argon Ar(s) 0.522 iron Fe(s)...
Use the following atomic weights to calculate how many grams of phenylacetic acid are required to...
Use the following atomic weights to calculate how many grams of phenylacetic acid are required to make the given amount of dibenzyl ketone with the expected % yield. Assume the iron is used in excess. Don't forget about the stoichiometry! Give only two significant digits in your answer. C = 12, H = 1, 0 = 16 phenylacetic acid + iron dibenzyl ketone formula formula weight grams 2.308 moles theoretical yield (g) % yield 67 Answer:
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1. Calculate the amount of grams of CuSO4 (nice blue crystals) required to make a 0.340 M solution in a 500 ml volumetric flask. 2. When 4.05 g of CuSO4 are added to a 250 ml volumetric flask, and it is filled half way with distilled water, and gently swirled until the crystals dissolve, and then enough distilled water is added so the meniscus is right at the mark on the neck, what will be the resulting concentration of the...
UyU lulen? 3. Using the component sources as indicated, calculate the amount of each component required...
UyU lulen? 3. Using the component sources as indicated, calculate the amount of each component required in preparing 1000 mL of the following parenteral nutrition solution: Parenteral Nutrition Solution Formula (a) Amino Acids 2.125% (b) Dextrose 20% (c) Sodium Chloride 30 mEq (d) Calcium Gluconate 2.5 mEq (e) Insulin 15 units (f) Heparin 2500 units (g) Sterile Water for Injection to make 1000 mL Component Source 500 mL of 8.5% amino acids injection 500 mL of 50% dextrose injection 20-mL...
Calculate: References 1pr a. How many grams of solid AgNO, will be needed to prepare 350. ml. of a 0.0500 M solutio...
Calculate: References 1pr a. How many grams of solid AgNO, will be needed to prepare 350. ml. of a 0.0500 M solution? 1 pt g 1 pt b. How many grams of vitamin C (CeHgOe) would be contained in 25.0 ml, of a 1.00 M solution? 1 pt 1 pt c. How many moles of HCl is contained in 300. mL of a S.0 M solution? 1 pt mol 1 pt Submit Answer Try Another Version 10 item attempts remaining...
1. You are provided with 1M solution of CuSO4. 2. Calculate how many grams of CuSO4...
1. You are provided with 1M solution of CuSO4. 2. Calculate how many grams of CuSO4 are dissolved in 100 mL of water to prepare this solution. Show your work in the space provided below. (Molar mass of CuSO4 = 159.6086 g/mol) (1 mark) Scso this . cutissu 159.6 خرداكولات و 3. Using a suitable transfer pipette transfer V. mL of your 1M Cuso. solution into a 100 ml volumetric flask. CV C 2V2 4. Using the equation CiV1=C2V2 calculate...
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answer 9
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16. How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe(s) + 4 H2O(g) Fe3O4(s) + 4 H2(g) 18. Mercury can be isolated from its ore by the reaction 4 HgS + 4 CaO → 4 Hg + 3 CaS + CaSO4 (a) How many moles of CaS are produced from 2.5 mol CaO? (b) How many grams of Hg are produced along with 9.75 mol of CaSO4? (c) How many...
3. Calculate the amount of solute, in moles, grams or milliliters, needed to prepare the following solutions Show all the step by step solution: a. 1.00 L of a 3.00 M NaCl solution (moles of solute) b. 2.00 L of a 1.50 M NaOH solution (grams of solute) c. Milliliters of 1.50 M NaCl solution to obtain 4.78 g of NaCl
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of a 50.0 mM solution. Calculate the number of milliliters of 5 M NaCl required to prepare 875.0 mL of a 25 mM NaCl solution.
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of water from 25. °C to 50.0 °C. ice Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol Specific Heat (J/g (state) °C) helium He(s) 5.193 water H2O(1) 4.184 ethanol C2H60(1) 2.376 H2O(s) 2.093 (at -10 °C) water vapor H2O(g) 1.864 nitrogen N2(8) 1.040 air 1.007 oxygen O2(8) 0.918 aluminum Al(s) 0.897 carbon CO2(8) 0.853 dioxide argon Ar(s) 0.522 iron Fe(s)...
Use the following atomic weights to calculate how many grams of phenylacetic acid are required to make the given amount of dibenzyl ketone with the expected % yield. Assume the iron is used in excess. Don't forget about the stoichiometry! Give only two significant digits in your answer. C = 12, H = 1, 0 = 16 phenylacetic acid + iron dibenzyl ketone formula formula weight grams 2.308 moles theoretical yield (g) % yield 67 Answer:
1. Calculate the amount of grams of CuSO4 (nice blue crystals) required to make a 0.340 M solution in a 500 ml volumetric flask. 2. When 4.05 g of CuSO4 are added to a 250 ml volumetric flask, and it is filled half way with distilled water, and gently swirled until the crystals dissolve, and then enough distilled water is added so the meniscus is right at the mark on the neck, what will be the resulting concentration of the...
UyU lulen? 3. Using the component sources as indicated, calculate the amount of each component required in preparing 1000 mL of the following parenteral nutrition solution: Parenteral Nutrition Solution Formula (a) Amino Acids 2.125% (b) Dextrose 20% (c) Sodium Chloride 30 mEq (d) Calcium Gluconate 2.5 mEq (e) Insulin 15 units (f) Heparin 2500 units (g) Sterile Water for Injection to make 1000 mL Component Source 500 mL of 8.5% amino acids injection 500 mL of 50% dextrose injection 20-mL...
Calculate: References 1pr a. How many grams of solid AgNO, will be needed to prepare 350. ml. of a 0.0500 M solution? 1 pt g 1 pt b. How many grams of vitamin C (CeHgOe) would be contained in 25.0 ml, of a 1.00 M solution? 1 pt 1 pt c. How many moles of HCl is contained in 300. mL of a S.0 M solution? 1 pt mol 1 pt Submit Answer Try Another Version 10 item attempts remaining...
1. You are provided with 1M solution of CuSO4. 2. Calculate how many grams of CuSO4 are dissolved in 100 mL of water to prepare this solution. Show your work in the space provided below. (Molar mass of CuSO4 = 159.6086 g/mol) (1 mark) Scso this . cutissu 159.6 خرداكولات و 3. Using a suitable transfer pipette transfer V. mL of your 1M Cuso. solution into a 100 ml volumetric flask. CV C 2V2 4. Using the equation CiV1=C2V2 calculate...
answer 9
b. (f-g)t Solve the system of equations (4.1) +4y -14 5x 7y-25 5) J=-3 6) Graph the inequality 3x+ 2ys 30. (3x+ 4y 2- 14 5x+ 7y s-25 7) Graph the system of linear inequalities 8) Find the value of $1000 invested in an account (2.5, 3.1, 3.2) a. Bearing 3 % simple interest after 5 years. b. Bearing 3 % interest compounded monthly after 5 years c Bearing 3 % interest compounded continuously after 5 years 9)...
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