QUESTION 1 A commercial vinegar is analyzed for the percent acetic acid present. The data for the first trial is given below. Calculate the required quantities using the raw data below. Preparation of Vinegar Sample: • Mass of vinegar (g) = 3.06 Analysis of Vinegar Sample: • Buret reading, initial (mL) = 25.40 • Buret reading, final (mL) = 3.70 • Molar concentration of NaOH solution (mol/L) = 0.0940 Calculate the volume of NaOH used (mL). Number answer only, do not write units. Do NOT write answer in scientific notation.

QUESTION 1 A commercial vinegar is analyzed for the percent acetic acid present. The data for the first trial is given below. Calculate the required quantities using the raw data below. Preparation of Vinegar Sample: • Mass of vinegar (g) = 3.06 Analysis of Vinegar Sample: • Buret reading, initial (mL) = 25.40 • Buret reading, final (mL) = 3.70 • Molar concentration of NaOH solution (mol/L) = 0.0940 Calculate the volume of NaOH used (mL). Number answer only, do not write units. Do NOT write answer in scientific notation.

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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A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 6.0 g • She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 94.86 g. • She added water to the graduated cylinder and dissolved the sodium thiosulfate completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 122.28 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits. 山。 g.mL 1 x10 X Ś
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A solid mixture consists of 25.5 g of KNO3 (potassium nitrate) and 4.5 g of K₂SO4 (potassium sulfate). The mixture is added to 130. g of water. Use this solubility curve (Figure 1) to answer the questions. Part B If the solution described in the introduction is cooled to 0 °C, what mass of KNO3 should crystallize? Enter your answer numerically in grams. View Available Hint(s) 15| ΑΣΦ ?
mass NaHCO3 (g) molar mass NaHCO3 (g/mol) moles NaHCO3 (mol) liters solution (L) Molarity NaHCO3 (M) . Start Virtual ChemLab, select Reactions and Stoichiometry, and then select Creating a Solution of Known Molarity from the list of assignments. The lab will open in the Titration laboratory. 2. In the laboratory, a bottle of baking soda (sodium bicarbonate, NaHCO3) will be next to the balance, and an empty beaker will be on the stir plate. Drag the empty beaker to the spotlight next to the balance, click in the Balance area to zoom in, place a weigh paper on the balance, and tare the balance. 3. Open the bottle by clicking on the lid (Remove Lid). Pick up the Scoop and scoop out some sample by first dragging the scoop to the mouth of the bottle and then pulling the scoop down the face of the bottle. As the scoop is dragged down the face of the bottle it will pickup different quantities of solid. Select the largest sample possible and drag the…
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Calculate the grams of solute needed to prepare each of the following. Part A You may want to reference (Pages 298 - 305) Section 9.4 while completing this problem. 2.00 L of a 2.00 M NaOH solution Express your answer with the appropriate units. HẢ ? Value Units Submit Request Answer Part B 4.80 L of a 0.195 M CaCl2 solution Express your answer with the appropriate units. HẢ ? Value Units Submit Request Answer