Solve the set of problems shown below with reference to the following information about ethanol. Ethanol (C2H5OH): molar mass = 46.069 g/mol. Density of absolute (100 % v/v) ethanol = 0.7893 g/mL During a romantic candlelight dinner a 70 kg person drinks a bottle (750 mL) of Leeuwin  Estate Art Series Chardonnay (13.5 v/v%) in the space of 3 hours (assume the individual starts drinking wine from the start of the dinner). Ethanol is metabolised at a constant rate of 120 mg per hour per kg body weight, regardless of its concentration. What is their blood alcohol content (mg/100 mL blood) at the end of the dinner? How long will it take for their blood alcohol level to fall to the legal limit (0.05 %)?

Q: How many grams of NaBr are needed to prepare 21.6 g of 5.06% (w/w) NaBr solution in water? How many…

A: Answer: Formula to calculate (w/w)% of solute is shown below: (w/w)% of solute=Mass of soluteMass…

Q: Can someone please show me how to find the molarity of isopropyl alcohol (70%) Known information:…

A:

Q: Which of the following is expected to be moderately soluble in both water and benzene? H H Benzene:…

A:

Q: 1. Calculate the mass of 0.1890 mol CH

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: What is the %(w/v) of a 0.500 M glucose (C6H12O6) solution? MM of glucose is 180 g/mol. 18.0% 1.80%…

A:

Q: Compound NaCl (FW = 58.5 g/mole) C₂H5OH (FW = 46.0 g/mole) KBr (FW=119.0 g/mole) Molality 2.70…

A: We have to calculate the missing values in the given table.

Q: An aqueous solution is prepared by diluting 4.20 mL acetone (d = 0.789 g/mL) with water to a final…

A: Volume of acetone is 4.20 mL. Density of acetone is 0.789 g/mL. Density of solution is 0.993 g/mL.…

Q: When 71 g of Na2SO4 (FW 142 g/mol) is dissolved in 0.250L of water (MW 18.02 g/mol), what is the…

A: The mole fraction of sulphate ion can be calculated as follows

Q: 20 g of compound A (Mwt=46), with vapor pressure 400 mmHg at 70°C, mixed with 15g of compound B…

A: This question is related to finding out the total vapor pressure. The method is correct undoubtedly.…

Q: (Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,296 grams of water to…

A: The solution is made up of solute and solvent. The solute is present in a small amount and the…

Q: [Topic: Percent Concentration ] How would we prepare 250mL of a 4.4% w/v KBr solution in water?…

A:

Q: Calculate the mass percent (m/m) of 25.0 g KCl dissolved in 125 g of water?

A: Mathematically,Mass percentage of an substance is equal to the ratio of mass of given substance to…

Q: What is the molar concentration of a 27% acetone (CH3COCH3) solution?

A: Given: (w/v)% of acetone = 27%

Q: ADWA) sets a limit for mercury- a toxin to the central nervous system- at 0.0020 ppm by mass. Water…

A: In this question we have to find out the volume of water in litre by a person have to consume to…

Q: You wish to prepare 191 grams of 7.01% (w/w) NaCH3COO. Assume that the density of water is 1.00…

A: w/w % is the method for determining the concentration of any sample in which the units used for the…

Q: What mass of carbon dioxide (in g) is dissolved in 1,248.9 mL of water at 25°C when the partial…

A:

Q: How many grams of phenol should be used to prepare 240 g of a 5% (w/w) solution in water?

A: Formula used :-  W/W % = (Mass of phenol ÷ Mass of solution )×100%

Q: show the solution Describe the preparation of 2.50 L if 18.0% (w/v) aqueous glycerol (C3H8O3)(92.1…

A:

Q: 4. State whether you expect the following molecules to be soluble or insoluble in water. Explain…

A: Given are organic compounds. Water is polar solvent.So, only polar compounds are soluble in…

Q: Ethanol (C2H5OH): molar mass = 46.069 g/mol. Density of absolute (100 % v/v) ethanol = 0.7893 g/mL.…

A:

Q: e boiling point of

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the %(w/v) concentration of an anti-septic solution that contains 0.85 moles of solute in…

A: Given molar mass is 96.6g/mol

Q: volume

A:

Q: 3. What is the molar concentration of nitric acid (63.0 g/mol) in a solution that is 68.10 % HNO3…

A: Given that, Molar mass of HNO3 = 63.0 g/mol percentage of composition of solution = 68.10 % Specific…

Q: How much water is needed to dilute a mixture of 0.25 moles NaOH and 250 ml H2O so that the solution…

A:

Q: How many grams of NaBr are needed to prepare 31.8 g of 1.13% (w/w) NaBr solution in water? How many…

A:

Q: gaseous mixture contains the following (%n/n is percent by mole): 15%n/n O₂, 23%n/n N₂, 4%n/n CH₄,…

A: Ideal gas equation is : PV = nRT  At constant temperature and pressure :  V ∝ n

Q: Which of the following would you predict to be soluble in water? (can choose more than one) NH₂ ҳ НО…

A: Given compounds are :  ?

Q: Which of the following can complete the reaction below? ? NBS/(PhCO2)2 H₂SO4 in boling water H₂, Pt,…

A: The suitable catalyst is to be identified for the given reaction.

Q: How many grams of NaBr are needed to prepare 27.5 g of 7.46% (w/w) NaBr solution in water? How many…

A:

Q: What are the mole fraction and the mass percent of a solu-tion made by dissolving 0.30 g of KI in…

A: Substitute 0.4 L as volume and I g/mL as the density of water in the expression of density to…

Q: Calculate the molarity (M) of 34% aqueous H3PO4 solution (d=1.2g/ml). (P:31, O:16 H:1 g/moles)

A: 100 g of solution contains 34 g H3PO4. Density of solution = 1.2 g/mL=1200g/L   [ 1mL=10-3L] Now…

Q: 7. What volume in Litres does 85.4 g of nitrogen gas occupy at SATP?

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: A 4.5 mL gas bubble is exhaled by a diver at a depth where the pressure is 3.30 atm and the…

A: Given that,  Volume of gas bubble V1 = 4.5 mL Pressure P1 = 3.30 atm Temperature of gas bubble T1=…

Q: What is the freezing point of a solution prepared from 53.3 g ethylene glycol (C2H6O2) and 86.4 g…

A: Given: Mass of ethylene glycol (C2H6O2)=53.3 g Mass of water=86.4 g=0.0864 kg Kf of water =1.86°C/m.…

Q: How many 650mg NaHCO3 tablets would be used to prepare 250mL of 10% w/v solution?

A: mass of NaHCO3 = 650 mgVolume of 10% w/v solution = 250 mL10% w/v = 10 g of solute in 100 mL…

Q: For each solute, click the button under the better solvent. solute :0: || NH,—CNH, NaCl CH₂(CH₂) CH,…

A: Generally, polar substances are soluble in polar solvents. Non-polar substances area soluble in…

Q: 10.Pure ethanol (C2H5OH) typically freezes at -114.6 °C, with a Kf value of -1.99 °C/m. If 50.00 g…

A: Pure ethanol freezes at -114.5 °c 50.00 g of Ca(NO3)2 is added in 700 g of ethanol. Freezing point…

Q: How many grams of NaBr would be required to make 250 mL of a 0.2 M solution?

A: You have asked multiple type questions, we will solve only first  questions for you. If you want any…

Q: Determine the mass of sodium nitrate (NaNO3) that must be added to 450 g of water to prepare a 7.5%…

A: Density of H2O = 1 g/mL Density of NaNO3 = 2.26 g/mL The relation between density, d and mass, m is…

Q: In European countries, a person with a blood alcohol concentrationof 0.050% (v/v) is considered…

A: Given, Legal blood alcohol concentration = 0.050 % (v/v)  Blood volume = 5.0 L

Q: Please answer subparts C AND D   C. An 80-proof brandy means that the brandy contains 40.% alcohol…

A: Note - In part C, since you have asked the millilitres of alcohol present in 750 mL of brandy, we…

Q: When a person has a blood alcohol content (BAC) of 0.10% (v/v) they are likely to exhibit impaired…

A:

Q: How would you prepare 100 ml of a 5 uM solution of ammonium nitrate (NH4NO3; Formula weight = 80…

A: The answer is given below: