Question

In: Chemistry

Candy chemist was asked to determine the concentration (m/m) of new alcoholic beverage from the molarity,...

Candy chemist was asked to determine the concentration (m/m) of new alcoholic beverage from the molarity, which was determined to be 3.205 M and the density, which was found to be .984 g/mL/ What is the mass percent of ethanol (MM= 46.068 / mol) in the beverage ?

Solutions

Expert Solution

                                 Molarity= { [(w/W)%] X10Xd} x[1/M.wt]

Molarity= 3.205        denisity= 0.984               M.wt= 46.08   

                                  Molarity= { [(w/W)%] X10Xd} x[1/M.wt]

                                   3.025 = { [(w/W)%] x10x0.984x[1/46.08]

                               w/W%=    [3.025x46.08]/[9.84]

   w/W%=    [139.39]/[9.84]

                                          =14.165%

                  

queen_honey_blossom answered 1 year ago
Next > < Previous

Related Solutions

Chemists often use molarity M, in moles/liter, to measure the concentration of solutions. Molarity is a...
Chemists often use molarity M, in moles/liter, to measure the concentration of solutions. Molarity is a common unit of concentration because the volume of a liquid is very easy to measure. However, the drawback of using molarity is that volume is a temperature-dependent quantity. As temperature changes, density changes, which affects volume. Volume markings for most laboratory glassware are calibrated for room temperature, about 20?C. Fortunately, there are several other ways of expressing concentration that do not involve volume and...
A chemist needs to determine the concentration of a sulfuric acid solution by titration with a...
A chemist needs to determine the concentration of a sulfuric acid solution by titration with a standard sodium hydroxide solution. He has a 0.1157 M standard sodium hydroxide solution. He takes a 25.00 mL sample of the original acid solution and dilutes it to 250.0 mL. Then, he takes a 10.00 mL sample of the dilute acid solution and titrates it with the standard solution. The endpoint was reached after the addition of 14.02 mL of the standard solution. What...
You are asked to determine the concentration of ions dissolved in water samples collected from a...
You are asked to determine the concentration of ions dissolved in water samples collected from a storm sewer. The client is only interested in the following anions: Cl–, Br–, NO3–, SO42– and the following cations: NH4+, Na+, K+, Ca2+ and Mg2+. Select the best method of analysis. Options: Gas Chromatography HPLC-Liquid Chromatography Atomic Absorption HPLC-Ion Chromatography Atomic Emission UV/Vis Spectrophotometry
You are asked to determine the concentration of ions dissolved in water samples collected from a...
You are asked to determine the concentration of ions dissolved in water samples collected from a storm sewer. The client is only interested in the following anions: Cl–, Br–, NO3–, SO42– and the following cations: NH4+, Na+, K+, Ca2+ and Mg2+. For the scenario above, identify the best detection method for the analysis: Question options: FID ECD Refractive Index UV Conductivity TCD
A chemist needs to determine the concentration of a sulfuric acid solution by titration with a standard sodium hydroxide...
A chemist needs to determine the concentration of a sulfuric acid solution by titration with a standard sodium hydroxide solution. He has a 0.1799 M standard sodium hydroxide solution. He takes a 25.00 mL sample of the original acid solution and dilutes it to 250.0 mL. Then, he takes a 10.00 mL sample of the dilute acid solution and titrates it with the standard solution. The endpoint was reached after the addition of 14.33 mL of the standard solution. What...
A chemist measures the haptoglobin concentration (in grams per litre) in the blood serum from a...
A chemist measures the haptoglobin concentration (in grams per litre) in the blood serum from a random sample of 11 healthy adults. The concentrations are assumed to be normally distributed and are given below. 1.4,1,1.8,1.8,0.4,1.5,2.2,0.8,0.9,3.3,2.2 At a 1% level of significance, perform a statistical test to see if there is evidence that the mean haptoglobin concentration in adults is less than 1.8 grams per litre, by answering the following parts. 1.1 (.8 marks) Give the Null and Alternative Hypotheses, using...
Goal #2: Determine the aqueous concentration of IO3- in each sample by titration. Molarity Formula Name...
Goal #2: Determine the aqueous concentration of IO3- in each sample by titration. Molarity Formula Name Quantity Determined in Part I Na2S2O3(aq) Sodium Thiosulfate 250 mL KI(s) Potassium Iodide 10 scoops using the spoon provided in your kit 1.0 M HCl Hydrochloric Acid 25 mL 0.20% Starch Solution 10 mL Fill the buret with the thiosulfate titrant. Drain some titrant out until the level is a milliliter or so below 0.0 mL. Make sure you don't have a bubble at...
calculate the acidity (H+ concentration) of a carbonated beverage that contains .15 m h2co3 use only...
calculate the acidity (H+ concentration) of a carbonated beverage that contains .15 m h2co3 use only the first ionization for h2co3 to hco3- which is 4.4x10^-7
Also use 0.1 M NaOH. 1. The concentration (molarity) of H3PO4 in your 250.00 mL sample...
Also use 0.1 M NaOH. 1. The concentration (molarity) of H3PO4 in your 250.00 mL sample using the data from part B. 2. The mass (in mg) of NaH2PO4 in the 250.00 mL sample using the data in part B. In my data: the first equivalence point is rech at 18 ml at pH 4.75, second equivalence point is reach at 47.0 mL at pH 9.85. I stop titrating at 52 mL with pH 11.00. Help Please.
Determine the chloride ion concentration in each of the following solutions: 0.130 M BaCl2: M 0.666...
Determine the chloride ion concentration in each of the following solutions: 0.130 M BaCl2: M 0.666 M NaCl: M 1.802 M AlCl3: M (b) What is the concentration of a Sr(NO3)2 solution that is 1.55 M in nitrate ion? M
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT