Mrs S has severe urticaria.  The prescriber has requested 500g of 2% w/w calamine in aqueous cream. You have 5% w/w calamine in aqueous cream in stock. You decide to prepare this product by extemporaneous dilution using aqueous cream as the diluent. How many grams of 5% w/w calamine in aqueous cream is needed to make 500g of 2% w/w calamine in aqueous cream? units – g

Q: How many osmoles are there in 6.00 mL of a 6.0 N Mg3(PO4)2 solution ? First we have to convert moles…

A: Given the volume of 6.0 N Mg3(PO4)2 = 6.00 mL  For Mg3(PO4)2, 1 mol = 6 eq

Q: Cl,, uv

A: Irradiation of the reaction mixture under the uv light is the driving force to carry out the…

Q: 2. For the reaction: 2A + B → C, the rate of formation of C was measured for a number of different…

A: Rate law is an expression that relates rate of the reaction to the concentration of the reactants.

Q: Show the formation of ionic bonding in the following 1. MgCla 2. CaBr 3. ALS. Show the formation of…

A:

Q: 1. Using the table of standard free energies, calculate the equilibrium constant, Kp, for the…

A: Recall the reaction, 2HCl(g) <==> H2(g)+ Cl2(g)  Kp @25℃ = ?

Q: An analyte solution was prepared using 1.1278 g of a diprotic acid and 25.0 mL of distilled water. A…

A:

Q: A 5ml ampoule of a 1 in 200,000 solution of bupivacaine hydrochloride is administered to a patient.…

A: 1 in 200,000 solution means 1 g of solute in 200,000 mL of solution.

Q: 5. What are the tips you can give in choosing and using insect repellants?

A: Centers for Disease Control (CDC) have laid down the following  standards  for choosing insect…

Q: Dinitrogen tetraoxide, a colorless gas, exists In equllibrlum with nitrogen dloxide, a reddish brown…

A:

Q: A chemist dissolves 890. mg of pure barium hydroxide in enough water to make up 110. mL of solution.…

A: Mass of barium hydroxide = 890 mg  Volume of solution = 110 ml Temperature = 25 °C  pH of the…

Q: Draw the ICE table and calculate the value of K. for the equilibrium system: H2(8) 12(3) 2 HIg) at…

A:

Q: you add 1.00 mL of 1.00 M HCl to 100.0 mL of buffer solution that is 0.100 M acetic acid and 0.100 M…

A: Given-> Volume of HCl = 1.00 ml Molarity of HCl = 1.00 M Volume of buffer = 100.0 ml Molarity of…

Q: QUESTION 3: What is the mass (in grams) of fluorine gas is needed to react completely with 17.8g of…

A:

Q: When hydrogen and oxygen are burned to produce water, heat is produced at the rate of 58 kcal/mole…

A: Given, 1 mol H2O = 6.022 ×1023 molecules  Heat produced = 58 Kcal/mol

Q: give full and condensed electron configurations, partial orbital diagrams showing valence electrons…

A: To write: full and condensed electron configuration. Partial orbital diagram showing valence…

Q: Ammonia is a weak base (Kb = 1.8 x 10-5). What is the pH of 1.2 M ammonia? 2.33 4.74 9.26 10.14…

A: Given, Concentration of the ammonia (C) = 1.2 M Kb  for Ammonia (NH3) = 1.8 × 10-5 Note: Ammonia…

Q: "Cyclohexene is a linear molecule with 6 carbon atoms and 12 hydrogen Describe the molecule…

A: We have to tell why the response is wrong and also have to give the real response.

Q: 3. For a basic zwitterion, the isoelectronic point is (circle all that are correct): a. below pH 6…

A:

Q: Which of the following may be used to measure the pH of a solution?   a. a pH meter   b.…

A:

Q: How would you convert the following compounds to aromatic compounds? (a) (b) (c) CI (d) (e) (f) HO-…

A: According to Huckel , Aromatic species can be explained using π electrons calculation along their…

Q: Use the diagram below to answer numbers 5-6 Solid Liquid Gas 5. Which of these conclusions can be…

A:

Q: Activity 1. Lewis Structures Instructions: Draw a Lewis structure for: (a) H2S, (b) OF2, (c)…

A: Lewis structure :- Formulas or structures used for representation of bonds and lone pairs in any…

Q: A solution is formed by dissolving 15.5 g of sodium phosphate with 50.0 g water at 25.0 oC.  What is…

A: Formula used :-  (P° - P) /P° = wM/Wm  Where  P° = vapour pressure of pure solvent  P = vapour…

Q: A chemist dissolves 692. mg of pure hydroiodic acid in enough water to make up 60. mL of solution.…

A:

Q: ENDOTHERMIC REACTION EXOTHERMIC REACTION Activation Energy Activation Energy Energy of produch…

A: In an endothermic reaction, heat is absorbed by the reactants whereas in an exothermic reaction,…

Q: Which two functional groups are in the molecule shown below? Use the terms left and right to…

A: Identify functional group present in the structure --

Q: Br,, uv

A: In the given alkane, the carbon atom which is tertiary is most susceptible to the bromination…

Q: Mihira dissolves 0.150 mol of a chloro-carboxylic acid in enough water to make 0.500 L of solution.…

A:

Q: What is the pOH of a 6.0 x 10-7 M aqueous solution of HCl? a.5.2 b.7.8 c.6.2 d.8.9

A: Hydronium ion concentration is an important parameter of an aqueous solution. The concentration of…

Q: A. Put the following complexes in decreasing order of reactions rates under a dissociation reaction:…

A: Monodentate ligands bind to other molecule through only one donor atom and bidentate ligands bind to…

Q: Calculate the ratio of the effusion rates of N2 gas and 02 gas.

A: Effusion rate of a gas is given by the Graham's law of effusion.  According to the the Graham's law…

Q: Where does the 2.303 in front of the R in the second step come from?

A: To describe why we R is multiplied with 2.303.

Q: OH Br Br CH 2 CH2 C Hz CHo С. SHOW THE EXPANDED CONDENSED FORMULA:

A: Expanded formula:  Expanded formula shows all the bonds that are connecting each atom in the…

Q: 5. If there is 256mL of propane (C3H8) is combusted at a constant pressure and temperature. C3H8…

A:

Q: What is the hybridization of the central atom in the sulfur tetrafluoride (SF) molecule?

A: Hybridization of the central atom in the SF4

Q: 1. What are the possible / and m, values for n=4?

A: What are the possible value of l and ml for n=4 ?

Q: QUESTION 1: How much KCl03reactant will be needed to produce 105.8g of tetraphosphorus decaoxide…

A:

Q: You are working in an aseptic unit making TPN bags. One of your adult patients requires 20mmol of…

A: Given the stock solution= 5% sodium chloride.  Let the mass of the solution be 100g. Then the mass…

Q: 42. What is the maximum number of electrons that an orbital can have? * a. 1 electron b. 2 electrons…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Given the reaction: HI + CN- ↔ I- + HCN  What is the Bronsted-Lowry base in the forward reaction?…

A: The Bronsted acid are those which lose proton whereas Bronsted base are proton accepter.

Q: What is E° (celI) for the cell Mn | Mn2*(aq) || Ag*(aq) | Ag? E° (V) Standard Reduction Potentials…

A:

Q: What is the pH of a 0.35 M solution of trimethylamine, (CH3),N (Kb = 7.4 x 10 5)?

A: Given : concentration of (CH3)3N solution = 0.35 M  Kb for (CH3)3N = 7.4 × 10-5  To calculate :-  pH…

Q: Part B Calculate the molar mass for Mn3O7, an oxide of manganese. Express your answer to five…

A: B) atomic mass of Mn = 55 g.mole-1 Atomic mass of O = 16 g.mole-1

Q: 17. The figure below shows how the temperature of a substance changed as it was heated. Which…

A: #17: We are given the temperature(oC) versus time(min) graph for the heating of a substance.

Q: A 50.0 mL solution of 0.1911 M HCl was titrated using a 0.2561 M standardized NaOH solution. Compute…

A:

Q: 16 A Review Fifth member of the homologous series having general formula CnH2n-2 is Only One Correct…

A:

Q: 2. How are gases and liquids similar in properties? * a. Both have molecules that move randomly. b.…

A: Since you have asked multiple questions, as per guidelines we will solve only the first one for you.…

Q: Chemistry PLEASE NEED HELP ASAP!!!! Choose the list of group 2 elements that is ordered from lowest…

A: ->Ionization energy is the amount of energy required to remove the most loosely bound electron of…

Q: When 29.8 g of Al reacts with HCl, how many L of H2 gas are formed at STP? 2 Al (s) + 3 HCl (aq) →…

A: Given :-  2Al(s) + 3HCl(aq) → 2AlCl3(aq) + 3H2 (g)  Mass of Al = 29.8 g  To calculate  :-  Volume of…

Q: Given for nos. 1-2: The pH of a swimming pool was measured at 6.10. 1. What is its pOH? Answer:

A: Given: pH = 6.10