What is the percent concentration of a drug if 295 mg of the drug is found in 550 mL?

Q: If it is found that 5.00 mL of a sample has a mass of 5.250 g, what is the concentration of the…

A: Amount of substance present in 100ml of solution is defined as the percentage mass by volume. %m/v =…

Q: 2- A solution of sugar contains 35 grams of sucrose, C12H22011 in 100 mL of solution. What is the…

A: Given  Mass of sucrose     = 35 gram  Volume of solution = 100 mL   1000 mL  = 1 Liter  100 mL    =…

Q: What volume of solution is needed to give 15.3 g of NaBr is the solution is 28.4% NaBr by volume and…

A: The volume of solution has to be given,

Q: What is the concentration of your stock solution in mM?

A: 1% means 1/100 So, 0.1% = 0.1/100 Thus, 0.1% = 0.1 ug / 100 mL = 0.001 ug/mL

Q: he concentration of PSA (prostate-specific antigen) in the blood is sometimes used as a screening…

A:

Q: What is the molarity of a solution prepared by dissolving 233.4 grams of Fe(OH)3 in enough water to…

A: Given: The given mass of Fe(OH)3=233.4 g. The molar mass of Fe(OH)3=106.86 g/mole. The volume of the…

Q: A sulfuric acid (H2SO4) solution with a concentration of 6.00 M has a density of 1.34 g/mL. What is…

A: Mass percent of solute in a solution represents its concentration in the given solution, which…

Q: A chemist prepares a solution of iron(III) bromide FeBr3  by measuring out  26.g  of iron(III)…

A: Molarity is defined as no of moles of solute per litre of solution. molarity=no of moles of solute…

Q: You measure a dissolved oxygen (O2) concentration of 7.5 ppm in a river. What is the concentration…

A: Given: Dissolved oxygen concentration in water = 7.5 ppm Molar mass of O2 = 32 g/mol

Q: 0.50 M NaOH used.  I need to calculate these 3 things based off the results from attached "Data…

A: Given Data: Average volume of NaOH used= 5.27 ml. Molarity of NaOH= 0.50 M Volume of vinegar used =…

Q: 150 140 KI 130 120 110 100 NANO3 90 80 70 60 50 NH&CI KCI NaCi 40 30 20 10 KCIO3. Ce2(SO4)3 0 10 20…

A: Answer: At a given temperature when a solution contains the amount of solute equals to its…

Q: A solution of ammonia and water contains 1.80x1025 water molecules and 5.90x1024 ammonia molecules.…

A:

Q: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

A:

Q: What is the percent by mass KBr of a solution that contains 54.5 grams of KBr and 100.8 grams of…

A: The concentration of the solution is defined as the amount of solute present in the solution. In a…

Q: 0.502L of a 2.2 M KCl solution? Express answer in 2 significant figures?

A: Question is not there but depending on values given, Interpretation- Number of moles of KCl Concept…

Q: If 124 mL of a 1.2 M glucose solution is diluted to 550.0 Express your answer using two significant…

A: Given: M1 = 1.2 M V1 = 124 mL. V2 = 550.0 mL

Q: A chemist needs to create a 50% HCI solution. (HCt is hydrochloric acid. A "50% HCl solution"…

A:

Q: If 122 mL of allM glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

A:

Q: How many moles of KClKCl are contained in each of the following?

A: The number of moles of KCl(n) can be calculated using molarity (M) and volume (V) by using the…

Q: A chemist prepares a solution of calcium bromide (CaBr2) by measuring out 30.2 µmol of calcium…

A: Given ; moles of CaBr2 = 30.2 micromol And volume of solution = 300 mL

Q: If 25.0 mL of a 3.00 M HCl stock solution are diluted with water to a final volume of 5.00 L, what…

A:

Q: Calculate the number of grams that would be needed to make 2.50 x 102 mL of 0.230 M KOH. Enter your…

A: Given: 2.50 x 102 mL 0.230 M KOH

Q: A chemist prepares a solution of potassium dichromate K2Cr2O7 by measuring out 2.0g of potassium…

A:

Q: A chemist prepares a solution of barium chlorate (Ba (CIO3),) by measuring out 13.7 g of barium…

A: Concentration = number of moles/volume(in L)  And,  Number of moles = mass/molar mass

Q: What is the percent by mass NaCl of a solution that contains 85.1 grams of NaCl and 119.1 grams of…

A: Percentage by mass (% m/m or % w/w )=mass of solutemass of solution×100%

Q: What is the molarity of a solution that contains 57.7 g Naz2CO, in 4.00 L of sole In the 'Answer…

A: Titration is the quantitative method of estimating the strength of the any component. Molarity is…

Q: A student was answering the following question and made a mistake. Identify the mistake and correct…

A: Given data,Mass of solution=350gPercentage by mass=58%

Q: A solution of formic acid , HCHO2 is 23.6 M and has a density of of 1.20 g /mL. What is the…

A:

Q: A chemist prepares a solution of zinc nitrate (Zn(NO3)₂) by measuring out 75.5 μmol of zinc nitrate…

A:

Q: How many moles of solute are present in 300. mL of a 0.60 M solution of NaOH? Please report your…

A:

Q: Calculate the volume in milliliters of a 1.56M sodium nitrate solution

A: Molarity = number of moles/volume of solution (in L)

Q: What mass of  NaHCO3  would he need to ingest to neutralize this much  HCl

A: Molarity = number of moles/volume of solution (in L)  number of moles = mass/molar mass

Q: A 0.75 M acetic acid solution has a density of 1.01 g/mL. What is the amount of solvent in grams in…

A:

Q: What is the mass percent of 60 g NaCl in a 200-g solution? Express your percent as a decimal

A:

Q: A chemist prepares a solution of potassium dichromate (K,Cr,O,) by measuring out 35. g of potassium…

A: Molarity of a solution represents the concentration of a solution, which is expressed as mol/L.…

Q: A sample of barium chloride weighing 20.5g was dissolved in enough water to make a solution with a…

A: Given, Mass of barium chloride = 20.5 g  Concentration = 0.175 M                            = 0.175…

Q: Which of the following glassware is best used for slow dispensing of 47.00 mL of a solution?

A: Volumetric pipette are the most accurate apparatus for dispensing a liquid. Because here the error…

Q: Arsenic was measured in Chesapeake Bay water at a concentration of 512 mg/m3. What is the…

A: Given data,  Concentration = 512 mg/m3  1 oz = 28.35 g  1 gal = 3.78 L  1 m3 = 1000 L

Q: How many moles of hydrochloric acid are present in 61 mL of 0.847 M hydrochloric acid? Report your…

A: Given :- molarity of HCl solution = 0.847 M  Volume of HCl solution = 61 mL  To calculate :-  Number…

Q: A chemist prepares a solution of zinc oxalate (ZnC2O4 )by measuring out 4.97 mg of zinc oxalate into…

A: The concentration of the solution can be calculated using different methods. One of them is…

Q: 134.1 mg of NaCl (MM=58.44 g) is dissolved in 102.17 L of water. What is the concentration of Na+…

A: The mass of NaCl in the solution is = 134.1 mg The volume of the solution is = 102.17 L The…

Q: How much water must be evaporated from a 60 oz, 5% saline solution to produce a 25% saline solution?…

A: On dilution, number of moles remains constant i e. Percent × volume = constant  Using this we will…

Q: A chemist prepares a solution of zinc nitrate  ZnNO32  by measuring out  28.g  of zinc nitrate…

A:

Q: A chemist prepares a solution of zinc nitrate (Zn(NO,) by measuring out 91.0 µmol of zinc nitrate…

A:

Q: Calculate the total volume of pure ethanol in just one 23.5 fl. oz. (695 mL) can of American malt…

A:

Q: The density of a series of solutions with different concentrations of NaCl is measured. The results…

A: Plot of density (g/mL) Vs  concentration (NaCl % by weight)  is given by,

Q: What volume, in milliliters, of 14.6 M HCl is required to make 68.3 mL of 3.16 M HCl?

A: Given: Initial molarity of HCl = 14.6 M Final volume of HCl = 68.3 mL Final molarity of HCl = 3.16 M

Q: What is the percent by mass KBr of a solution that contains 88.7 grams of KBr and 119.7 grams of…

A: Given mass of KBr = 88.7 g Given mass of water = 119.7 g Mass percent is tells the concentration of…

Q: The molecular weight of sucrose is 342 g mol-1. How many grams would you need to weigh out, to…

A: •GIVEN=Molecular weight of sucrose=342 gm/mol •Molarity=0.8 M •Volume=20 ml=0.02 Litre •*Firstly we…