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- 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?Arterial fluid is what is in the bottle, arterial solution is the mixture in the reservoir. True FalseCommercial bleach is usually 5% solution of hydrochloric acid. true or false
- In a test tube, dissolve 10 drops of methanol in 3 ml. of water. Oxidize a copper wire spiral by passing it through a Bunsen burner. Plunge the red-hot wire into the alcohol solution several times, cooling the solution under the tap (faucet) so as not to evaporate too much of it. Next, add 1 drop of 0.5% resorcinol solution. Measure 2 ml. of concentrated sulfuric acid (CAUTION!) and pour this carefully down the sides of the test tube containing the mixture. Note the color of the zone intermediate between the acid and the solution. RESULT:2. When performing the recrystallization of an impure solid, why is it advised to use the minimal amount of solvent possible? Group of answer choices To minimize the amount of pure solid lost due to its solubility. To minimize the cost of the recrystallization. To reduce the time needed to filter the pure solid from the solvent after recrystallization. To minimize the amount of hazardous materials used.Rinse and fill the buret with 0.100 M HCl solution. Transfer accurately 25.0 mL of saturated calcium hydroxide solution (2g of calcium hydroxide per 100 ml of water) into two separate E-flasks. Add 2 drops of phenolphthalein to each flask and titrate each solution until the pink color disappears. Voume of HCl used: Trial 1= 6.80ml; Trial 2 = 6.30mL Determination of solubility and Ksp of calcium hydroxide 2. Compute for the moles of H+ used and the moles of OH- present. moles of H+ used = (concentration of HCl) × (volume of HCl used)moles of OH- = moles of H+ used 3. Construct an ICE table for the reaction.4. Calculate the molar solubility (in mol/L) of OH- and Ca2+.5. Determine the solubility of Ca(OH)2 in g/L. (MM of Ca(OH)2 = 74.096 g/mol)6. Calculate the Ksp of Ca(OH)2.7. Compute for the percent error of the experimental value for Ksp of Ca(OH)2 with the literature value.(Ksp of Ca(OH)2 = 8.0 × 10-6 at 25°C)
- 逐步解决 不使用人工智能出色完成工作 非常感谢您的支持 SOLVE STEP BY STEP IN DIGITAL FORMAT DON'T USE AI | DON'T USE AI | DON'T USE AI | DON'T USE AI | 2. An ethyl alcohol solution that is 75% alcohol by weight is to be used as a bactericide. The solution is to be prepared by adding water to a 95% ethyl alcohol solution. How many grams of each should be used to prepare 400 grams of the bactericide?a mixture containing only water and salt must be boiled to seperate the salt from water true or false?heat stability of oil in cold water fish and warm water fish?
- Please don't provide handwritng solutionConnected to DESKTOP-VKHKVG3 A solute added to a solvent raises the boiling point of the solution because Molal Boiling-Point Elevation Constants (Kb) and Freezing-Point nts the temperature to cause boiling must be great enough to boil not only the solvent but also the solute. Disconnect the solute particles raise the solvent's vapor pressure, thus requiring a higher temperature to cause boiling. 06:28 / 31:54 "TRU the solute particles lower the solvent's vapor pressure, thus requiring a higher temperature to cause boiling. the solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT]).How many grams of a 25% v/v hydroalcoholic solution should be used in preparing 32 fl.oz. of a 5% v/v solution. Specific gravity of the stock solution is 1.52.