Question 2 The concentration of a diluted "wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the dilution was done as described in Part B of the procedure for this lab, what was the original concentration of ethanol in the "wine"? Enter your answer with 2 significant figures.

Q: Graphically find the concentration in ppm and then calculate in mol/L of Soda #1 and Soda #2?

A: Caffeine Std (ppm) Absorbance (270 nm) 1 0.179 2 0.39 3 0.673 4 0.787     Soda #1 0.233…

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Q: Q5: 50 g of a 26% (m/m) solution was mixed together with 130 g of a 17% (m/m) solution. What is the…

A: To solve this problem we have to calculate the m/m% and volume of ethanoic acid.  We use the formula…

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Q: You need to make 500 mL of 5.0% (w/v) NaOH solution. You have a bottle of 10.0% (w/v) NaOH solution,…

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Q: A solution was made by dissolving 488.51 g of Ca(NO3)2 into 1200 mL of water. The density of water…

A: Information of question

Q: How many microliters of a 904.0 ppm Co2+904.0 ppm Co2+ stock solution are required to prepare 20.00…

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Q: Using the stock solution above, the student made additional dilutions, with the final volumes below.…

A: [Fe(NO3)3] = 0.200 M [KSCN] = 0.00200 M Volume of  Fe(NO3)3 used = 9.60 mL millimoles of Fe(NO3)3 =…

Q: How to make 80 micro mol Nacl solution ( mwt NaCL 55.8)? How to make 50 mili molar NaCL solution…

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Q: 2. A solution is prepared by dissolving 10.44 g of NaCl in enough water to make 500.0 mL of…

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Q: ▼ Calculate the number of grams of 1.2 % (m/m) NaCl solution that contains 6.00 g of NaCl. Express…

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Q: What volume (in L) of concentrated potassium hydroxide solution (21.5 mol/L) is required to prepare…

A: This is a dilution problem. Here the concentration of concentrated KOH solution is given. We have to…

Q: During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric…

A: According to the dilution formula, M1×V1=M2×V2

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Q: For the half dilutions part of your experiment how many samples are you required to have ? How much…

A: Following is the appropriate answers of the given question.

Q: Your teacher asks you to dilute 6.0 M HNO3 (M1) to 250. mL (V2) of 1.0M HNO3 (M2). What volume (V2)…

A: Given Molarity(M1) = 6.0 M Volume (V1) = ?  Molarity (M2) = 1.0 M Volume (V2) = 250.0 mL

Q: You have a stock solution of 5% CaCl.  For your experiment you need 250mL of a working solution of…

A: The equation used during dilution is  M1×V1 =M2×V2 M1=initial concentration = 5% M2=final…

Q: Assuming that 1 mL of potassium permanganate stock solution provides 1 mg/L dosage in a 2 L jar,…

A: Concentration of diluted KMnO4 solution (C1) = 1mg/L Volume of dilution (V1) = 2L concentration of…

Q: You have a material that is 1550 cells/L in water and you want to dilute it in the following…

A: Stock solution, C1 = 1550 cells/L Tube 1 solution (diluted), C2 = 115×1550 cells/LVolume of solution…

Q: 1.- The number of grams of Li2CO3 in 225 mL of 1.55 M Li2CO3 solution

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

Q: A mother liquor of a NaCl solution having a concentration of 5.00 M is taken two milliliters (2.00…

A: A 2.0 mL aliquot of 5.0 M NaC solution is taken out and diluted to a volume of 10.00 mL. We are…

Q: DRINK MIX please convert um to ppm of drink mix and show solution. thank you I dont…

A: Answer -

Q: A solution that is found to have a hydroxide concentration of 4.69 x10-5 that is at the freezing…

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Q: substance has a solubility of 12.5 g per 100 mL of solvent at 100 degrees celsius and 2.45 g per 100…

A: Given : solubility of substance at 100 °C = 12.5 g/100 ml  Solubility of substance at 10°C = 2.45…

Q: Calculate the final concentration in %(m/v) of a solution made by adding 325 mL water to 180. mL of…

A: Mass by volume percent represent the percentage ratio of mass of solute to the volume of solution.

Q: 1.How many mL of stock solution (50 mM KCl) will you use to prepare 25 mL of a 5X dilution? Round…

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Q: A chemistry student needs 40.00 g of 4-methyl-2-pentanone for an experiment. She has available 1.0…

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Q: A lab group was supposed to make 12 mL of a 29% acid solution by mixing a 20% solution, a 27%…

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Q: During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric…

A: According to the dilution formula, M1×V1=M2×V2

Q: A student prepares a 0.68 mM aqueous solution of propionic acid (C₂H5CO₂H). Calculate the fraction…

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Q: Data for 5.0% NaCI Solution Mass of 50mL beaker 28.93 g Mass of beaker + 10.00mL of 5.0% NaCl…

A: From given  Density of 5% NaCl and 10% NaCl solutions are determined by finding its mass and…

Q: Question 4. Select the best answer by circling A, B or C below, and if applicable, fill in the…

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Q: 3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the…

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Q: Starting from the primary standard solution in Question 4 and using the dilution scheme in Figure 1,…

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Q: A student prepares a 1.2mM aqueous solution of crotonic acid C3H5CO2H. Calculate the fraction of…

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Q: 1.0 ml culture 0-2 O-3 O-4 O-5 0-6 0-7 O-8 P1 -9 9.0 ml 1/10 10-1 O-10 0.1 ml P2 9.9 ml 1/100 10-3 1…

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Q: A compound “X” is regulated by health Canada at 2 ug/L in drinking water (maximum allowable…

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Q: A sample of an industrial waste water is analyzed and found to contain 48.6 ppb Ni2+. How many grams…

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Q: A solution was prepared by dissolving 5.9833 g NaCl in sufficient water to create a 1-L solution in…

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Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.