An aqueous solution of iron(III) bromide, FeBrs, contains 7.27 grams of iron(III) bromide and 17.6 grams of water. What is the weight'weight percent of iron(III) bromide in the solution? Weight weight percent =
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A: The given graph is :
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- Answers should be in 4th decimal places An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG=1.114; MW = 62.07 g/mole) and water at 20oC. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol asa) Volume percentb) Mass percentc) Molarityd) Molalitye) Mole fractionDrug: C20H22ClN (Flexeril also known as iCyclobenzaprine HCl Using unit analysis, clearly show the set-ups for your calculations. You wish to prepare 50.0 mL of 2.30 x 10–2 M solution of your drug. (hint-how many grams will you need of your drug?) Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. A patient is given 2.0mL of a 3.00% (m/v) solution of your drug, how many milligrams of the drug did they receive? What is the molarity of a 3.00% (m/v) solution of your drug?What is the molarity of a concentrated solution of sulfuric acid with a specific gravity of 1.84 and 95.0% by weight sulfuric acid? specific gravity = density of substance at certain temp/density of water at 4 degrees C the density of water is 0.999973 g/mL at 4 degrees celsius. Describe how to prepare 3.0 L of 0.100M. I will pipet ______ and add this to 200mL water. The solution will be stirred and diluted to 3L with water.
- Part 1: Preparation of the Primary Citric Acid Standard Mass of empty 250-mL glass beaker: 100.7g Mass of 250-mL beaker and anhydrous citric acid First weighing : 103.4 g Second weighing: 106.5 g Third weighing: 106.1 3. Total volume of citric acid solution: 75.0 mL please help me with part Part 1: Preparation of the Primary Citric Acid Standard Mass of Citric Acid _________________________ Volume of Citric Acid Solution ____________ Moles of Citric Acid _________________ (Molar Mass = 192.0 g/mol) Molarity of Citric Acid Solution ____________10. A 150.0mL sample of salt water is evaporated to dryness. A residue of salt weighing 27.9g is left behind. Calculate the percent mass/volume of the original salt water sample. 11. A solution is made by dissolving 0.900g of salt in 100.0mL of water. Assume that each milliliter of water weights 1.00g and that the final solution volume is 100.0mL. Calculate the %mass and %mass/volume for the solution.Gypsum (CaSO4) is a common percipitant in water desalination. CaSO4 <=> Ca2+ + SO42- where Ksp=10-4.6. Assuming that: [Ca2+]=2x10-2 M; [SO42-]=2x10-3M: a) Find Qsp or IAP for the given water b) Find the solubility index (SI) and determine whether CaSO4 is under, super, or at saturation in water. Feel free to make any assumptions you wish, as long as they're stated.
- A solution of potassium phosphate contains a mixture of 164 mg of monobasic potassium phosphate (MWt: 136) and 158 mg of dibasic potassium phosphate (MWt: 174) per milliliter. If a hyperalimentation fluid calls for the addition of 45 mEq of potassium, how many milliliters of the solution should be used to provide this level of potassium? How many millimoles of total phosphate will be represented in the calculated volume of potassium phosphate solution?A student determines the molar mass of a liquid unknown by the method used in this experiment. She found that the equilibrum temperature of a mixture of ice and water was 1.0 degrees C on her thermometer. When she added 11.1 g of her unknown sample to the mixture, the temperature, after thorough stirring, fell to -3.0 degrees C. She then poured off the solution through a screen into a beaker. The mass of the solution was 90.4 g. Kf=1.86 degrees C/m 1. What is the freezing point depression? 2. What is the molality of the unknown solution? 3. How much unknown liquid was in the decanted solution?1. A solution of 1200 mL of water is prepared with 157 grams of NaCl and 40.0 grams of Sucrose. Find the boiling point of the solution at sea level? At 3000 ft? (MW NaCI 58, Sucrose 342)
- 1. How many microliters of a 25 \mu M MgCl2.6H2O solution would be needed to provide 152.48 ng of MgCl2.6H2O for a chemical reaction? [ Mwt MgCl2.6H2O = 203.3 g/moleANSWER THEM ALL FOR AN UPVOTE. ASAP PLEASE. The theoretical weight of 10 tablets is 9.35g. Each tablet contains 425mg of the active ingredient. Using this data, determine the amount of additive needed to prepare 160, 000 tablets. How many grams of drug are required to make 500ml of 25.0% solution?Calculate molar concentration of a solution that is 50.0% NaOHby weight and has a specific gravity of 1.52 (FW NaOH= 40.00g/mol)