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The antacid milk of magnesia, which contains
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- When 3.00 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 11.00oC was obtained for ΔT. 1. Calculate the molarity of the sodium hydroxide solution? _____ 2. Calculate the value (calories) for the heat of solution of 3.00 g of NaOH? ______ 3. Calculate the number of calories that would be produced if one mole of sodium hydroxide was dissolved. (ΔHsolnNaOH)? ______arrow_forwarda) Aspirin, which is acetylsalicylic acid, was the first NSAID use to alleviate pain and fever. If a solution of aspirin has an [OH-] = 1.0 x 10-5 M, what is the [H3O+], of solution? b):Aspirin, which is acetylsalicylic acid, was the first NSAID use to alleviate pain and fever. If a solution of aspirin has an [H3O+]= 4.7 x 10-2 M, what is the pH of the solution?arrow_forwardOld aspiring exposed to moisture smells like acetic acid (vinegar). when aspirin is heated in boiling water, it decomposes and gives off a vinegar smell. The resulting solution gives a positive FeCl3 test. What is happening when the aspirin gets old?arrow_forward
- Benoxinate hydrochloride 0.4% w/v Fluorescein sodium 0.25% w/v Sodium chloride qs Purified water qs 30 mL Make isoton. sol. Sig. use in the eye How much sodium chloride should be used in compounding the prescription?arrow_forwardHousehold bleach contains 6% sodium hypochlorite. How much household bleach should be combined with 70 L of a weaker 1% hypochlorite solution to form a solution that is 2.5% sodium hypochlorite? Show all workarrow_forward3. 5 mL acetic anhydride is to be added to 2 g salicylic acid. To how many equivalents (acetic anhydride/salicylic acid) does this correspond?arrow_forward
- Make 500 ml of 10 mM Tris-HCl; pH=7.5; 0.25 M Glucose; 0.1% Tween-20; 5% BSA Molecular weight of Tris-HCl = 157.6 g/mol. You have a 3M glucose stock. Tween-20 is a liquid. BSA is a solid. How many grams of Tris-HCl is used? How much of the 3M stock is used? How much of tween-20 is used? How much BSA is used? What is the process in making this solution?arrow_forward2.9g of aspirin was obtained from 3.0g of salicylic acid. Calculate the percentage yield.arrow_forwardAn aqueous solution containing 0.16 M of unknown base has a measured pH equal to 7.51. What is the value of pKb for the unknown base? Include 3 significant figures in the answerarrow_forward
- A 2.00 L bottle of soda when cold (0 °C), has a CO2 concentration of 0.105 M. When the bottle is opened andheated to 50 °C, most of the CO2 leaves the solution, and the CO2 concentration drops to 0.026 M. How manyGrams of CO2 bubbled out and left the solution? Use stiochemistry with divider lines in between numbers for the conversion factors and the answer is 7.0g CO210) The following questions use the balanced chemical equation below.3 Cu(NO3)2 + 2 K3PO4 º 6 KNO3 + Cu3(PO4)2(a) Calculate the volume of 0.750M Cu(NO3)2 solution required to react completely with 2.48L of a 1.19MK3PO4 solution. Use stiochemistry with divider lines in between numbers for the conversion factors (b) How many grams of Cu3(PO4)2 will be formed from the complete reaction of 18.5 mL of a 0.625MCu(NO3)2 solution?Use stiochemistry with divider lines in between numbers for the conversion factors The answer is 10a. 5.90L 10b. 1.47g 11) The following questions use the balanced chemical equation below.Zn + 2 HBr º…arrow_forwardIndicate whether each of the following increases, decreases, or has no effect on the rate at which 10.0 g of sugar -dissolves in a liter of water. (a) using water from the refrigerator (b) shaking the sugar and water (c) using powdered sugar rather than crystals (d) using tap water rather than distilled waterarrow_forwardWhen 3.50 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 10.50oC was obtained for ΔT. molarity of the sodium hydroxide solution. 0.583 Calculate the value (calories) for the heat of solution of 3.50 g of NaOHarrow_forward
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