Data for NaOH solution:Mass of the empty beaker:73819Mass of the beaker and NaOH:Mass of NaOH used in solution:97.80923.999Part II: Standardization of the NaOH SolutionTrial ITrial 2Trial 32.3Mass of weighing paper2,24,2.3Mass of citric acid + weighing paper3.423,2493.329Mass of citric acid 1-1.19Initial buret readingFinal buret readingVolume of NaOH usedTily1.091,029012 L0.2mb0.0 mL29.5 27 27.2 mL29.3mL 26.8mL26.8mL 27.2 mL 2. Write a balanced equation for the reaction of citric acid (H3C6H5O7) with excessNaOH.

When an acid reacts with base it forms salt and water.Citric acid is a triprotic acid therefore when…

Answered: Data for NaOH solution: Mass of the…

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

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 117AE: Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray...

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Beakers (a), (b), and (c) are representations of tiny sections (not to scale) of mixtures made from pure benzene and pure water. Select which beaker gives proper representation of the result when the two pure substances are mixed.
Magnesium chloride is an important coagulant used in the preparation of tofu from soy milk. Its solubility in water at 20C is 54.6 g/100 g. At 80C, its solubility is 66.1 g/100 g. A mixture is made up of 16.2 g of magnesium chloride and 38.2 g of water at 20C. (a) Is the mixture homogeneous? If it is, how many more grams of magnesium chloride are required to make a saturated solution? If the mixture is not homogeneous, how many grams of magnesium chloride are undissolved? (b) How many more grams of magnesium chloride are needed to make a saturated solution at 80C?
Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378-m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr?
solution is a homogeneous mixture. Can you give an example of a gaseous homogeneous mixture? A liquid homogeneous mixture? A solid homogeneous mixture?
Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.
Urgently in one hour
A student obtains the following data: a- Mass of evaporating dish 21.345 g b- Mass of evaporating dish and saturated NaCl solution 42.817 g c- Mass of dish and NaCl after evaporation 38.915 g Report the Mass % of NaCl in this solution. Write the number as a percentage with the correct number of significant figures as shown. (i.e. 25%) There should be no space between the numbers and the % sign.
Data of Candy Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 17.2 mL Data of milk Mass of milk: 103.8405g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 5.3 mL
When you walked in to lab today, you noticed that your partner group had a 0.05432 ml mixture sample of sand and water in a beaker. When your group began the lab to separate the mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a result, you added another 5.2ml of water to assist with removing it. A. Which separate method should be used to quickly and effectively separate the two substances. Explain why you chose this method. B.Determine the number of significant figures in your original sample. C.How much total mixture did you have after adding additional water.(provide the equation, calculate the answer and the final answer rounding to the correct number of significant figures.
II. STANDARDIZATION OF NAOH SOLUTION Table 3.4. Standardization of NaOH solution. Trial 1 Conditions Trial 2 Primary standard Weight of flask, g Weight of flask + KHP, g Weight of KHP,g NaOH solution Final volume reading, mL Initial volume reading, mL 123.4568 122.4567 123.7072 122.7208 25.50 32.40 0.00 5.50 Volume used, mL Normality of NaOH solution
150 140 130 120 110 100 NaNO3 90 80 70 60 NH&C KCI Naci 50 40 30 20 KCIO3. 10 Cez(SOA)3 0 10 20 30 40 50 60 70 80 90 100 Temperature ('C) EONX NH37 Grams of solute
1 A certain substance X has a normal freezing point of 7.9 °C and a molal freezing point depression constant K,=5.08 °C·kg•mol . A solution is prepared by dissolving some urea ((NH,) CO) in 600. g of X. This solution freezes at 6.5 °C. Calculate the mass of urea that was dissolved. 2 Round your answer to 2 significant digits. g

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