Answered: How do I create a detailed separations…

How do I create a detailed separations flowchart of the isolation process of caffeine from soda? The experiment uses: 1. NaOH (sodium hydroxide) 2. CH2Cl2 (methylene chloride)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industrial strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume of vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas Volume of gas produced (mL) vs. Time (s) for Volcano #1 Time (s) produced (mL) 60 E 50 10 25 40 20 38 30 46 30 • Volume of gas produced (mL) 40 50 50 52 10 60 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas produced (mL) vs. Time (s) for…
What is another factor that can influence fractional distillation’s success other than the number of theoretical plates?
b. Account for this fact: Mixing 50 mL of methanol with 50 mL of water produces a solution with a volume slightly less than 100 mL. OMethanol evaporates during the mixing. ODuring hydration, methanol molecules decrease in volume. Owater evaporates during the mixing. Owater molecules interact extensively with methanol molecules. Submit Answer e Try Another Version F5 n F6 2 item attempts remaining S F7 C/C+ SONY F8 F9 e WEB F10 OFF One Touch Web Access Without Booting F11 F12 Num Lk PrtSc Sys
Grams of solute per 100 g H₂O 140 130 120 110 100 90 80 70 60 50 40 30 20 10 NH37 NaNO3 KCIO3. KNO3 NHẠC KCI Naci -Ce₂(SO4)3 0 10 20 30 40 50 60 70 80 90 100 6. How many grams of KCI can be dissolved in 100g of water at 80°C? 7. At 40°C, how much KNO3 can be dissolved in 100g of water? 8. At 30°C, 90g of NaNO3 is dissolved in 100g of water. Is this solution saturated or unsaturated? 9. How could you tell by looking at a solution that was saturated? 10. A vinegar brand contains 4% acetic acid by volume. If the density of vinegar is 1.05 g/ml, how many grams of acetic acid are in a 250.0 mL of vinegar? 19
Wine goes bad soon after opening because the ethanol (CH3CH₂OH) in it reacts with oxygen gas (0₂) from the air to form water (H₂O) and acetic acid (CH₂COOH), the main ingredient of vinegar. What mass of water is produced by the reaction of 8.9 g of ethanol? Round your answer to 2 significant digits. 08 g x10 ? Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility Explanation Check X MacBook Pro & X
3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industrial strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume of vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Time Volume of gas Volume of gas produced (mL) vs. Time (s) for Volcano #1 (s) produced (mL) 60 50 10 20 30 25 38 40 46 30 • Volume of gas produced (ml) 40 50 20 50 52 e 10 60 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas produced (mL) vs. Time (s)…
Ex. 110 - Calculating Mass of 3 attempts left Check my work What mass of oxygen is needed to react with 1.79 gal of methanol according to the balanced equation below? (1.00 gal = 3.79 L, and the density of methanol is 0.793 g/mL.) 2 CH3OH() + 3 02g) – 2 CO2g) + 4 H2O(g) If appropriate, express your answer in scientific notion. (Click on the answer box to show the pallet.) < Prev 3 of 5 ***** ****
A soft drink contains 54 gg of sugar in 339 gg of H2OH2O. Part A What is the concentration of sugar in the soft drink in mass percent? Express your answer in percent to two significant figures.
1. A company illegally dumped their wastewater on a river bank. You are part of an environmental NGO that are tasked to determine what kind toxins that may have contaminated the waters. What kind of analysis would you do? a. Characterization analysis b. Qualitative analysis c. Fundamental analysis d. Quantitative analysis 2. Four groups weighed ten rock samples each, and tested the possibility of outliers using Q-test. At 95.0% confidence (a = 0.05), which of the following is considered to be an outlier? a. 0.024 b. 0.413 c. 0.453 d. 0.674 3. An unknown solution containing oxalic acid, which is a diprotic acid, is titrated against sodium hydroxide. How many mole/s of titrant is needed to react with one mole of analyte? a. ½ b. ¼ c. 2 d. 4
What is the concentration of a 62.0 % (w/w) concentrated nitric acid (HNO3, Mr = 63.0 g/mol) solution (density: 1.32 g/cm3) in mol/dm3 (molarity) and g/dm3 (mass concentraion) units? How many cm3 do you need to dilute into 200.0 cm3 from that concentrated nitric acid if you would like to have a solution with a concentration of 3.0 mol/dm3 ?
Remaining Time! 02:29:4. Consider the balanced chemical equations shown below. When a 6.00 g sample of a mixture of iron (Fe) and aluminum (Al) is treated with excess HCl(aq), 0.177 moles of H2 are obtained. What is the mass percentage of Fe in the original mixture? Choose the closest answer. Fe(s) + 2 HCI(aq) FeCl2(aq) - + H2(g) 2 Al(s) +6 HC((aq) 2 AICI3(aq) + 3 H2(g) 96 % 69 % 47 % 33 % 17 % Rack Question Menu - O O
5.0 mL of 1-butanol was mixed with 10 mL of HCl. The reaction was put on an ice bath and 4 mL of concentrated sulfuric acid was added. This mixture was refluxed for 45 min and then the product was co-distilled with water using a simple distillation apparatus. Water and the product are immiscible. 1-butanol has a molar mass of 74.12 g/mol, a density of 0.810 g/mL, and a boiling point of 118 C. The product has a molar mass of 92.57 g/mol, a density of 0.880 g/mL, and a boiling point of 78 C. What is the nucleophile in this reaction? What is the role of H2SO4 in this reaction? Calculate the theoretical yield for this reaction. Give your answer in grams. Select the following statements that can be said about the reaction shown.