2. Boil 1 L of distilled water for 5 min to expel CO2. Pour the water into a polyethylene bottle, which should be tightly capped whenever possible. Calculate the volume of 25, wt% 2. NAOH needed to prepare I L of 0.1 M NaOH. (The density of W. 5 wt% 1.22 g NAOH is0 per milliliter of solution.) Use a graduated cylinder to transfer this

2. Boil 1 L of distilled water for 5 min to expel CO2. Pour the water into a polyethylene bottle, which should be tightly capped whenever possible. Calculate the volume of 25, wt% 2. NAOH needed to prepare I L of 0.1 M NaOH. (The density of W. 5 wt% 1.22 g NAOH is0 per milliliter of solution.) Use a graduated cylinder to transfer this

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 109AE: Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray...

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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?
1. Express in percentage the fluoride concentration in drinking water given in 0.6 ppm. 2. What will be the volume of the solid if it's specific gravity is 0.86 and mass if 5.72grams? 3. A glass plummet weighs 15.25 grams in air, 9.50 grams when immersed in water and 10.65 grams when immersed in oil. Calculate the specific gravity of oil? Show complete solution.
To prepare 4 mL of 1.0 M KOH stock solution, measure the mass of two KOH pellets (MW = 56.11 g/mol). Calculate the volume of 10% D;O required and dissolve the pellets with 10% D;0 stock solution. Make sure the pellet is completely dissolved. Properly label each solution.
Prepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%. Write complete solution using padpaper.
Q/ Prepare 0.1 N and 0.1 M of 98% H₂SO4 in 250 ml. M.wt of H₂SO4 = 98 g/mol, and its Specific density (SP.gr.) = 1.09.
d 630 mL of 2.90% (w/v) aqueous CuSO4 from a 0.385 M CuSO4 solution. Take mL of the 0.385 M CuSO4 solution and dilute to 630 mL with water. Submit e 6.30 L of 0.262 M NaOH from the concentrated commercial reagent [50% NaOH (w/w), sp gr 1.525]. Take mL of the concentrated reagent and dilute to 6.3 L with water. f 3.90 L of a solution that is 16.0 ppm in K*, starting with solid KĄ Fe (CN)6. Dissolve mg K4 Fe (CN)6 in enough water to give a final volume of 3.9 L.
Q/ Prepare 0.1 N and 0.1 M of 98% H,SO4 in 250 ml. M.wt of H,SO4 = 98 g/mol, and its Specific density (SP.gr.) =1.09 . tousityxio
You are analyzing the effluent from a lotion plant for parabens using HPLC. You have a working standard solution with a concentration of 59.4 ppm which returned a Peak Height of 10,164 and Peak Area of 5,315. You take 44.4 L of the water sample and concentrate it to 0.3 L and analyze this solution. The Peak Height is 9,119 and the Peak Area is 6,320. What is the concentration of parabens in the effluent of the plant in mg/L to two decimal places.
How to prepare the solutions listed below Solution 1) 25 mL 7 M sulfuric acid and the respective dilution of this solution to prepare 50 mL 2 M sulfuric acid in deionised water. Sulfuric acid Mw = 98.079 g mol-1 Sulfuric acid density = 1.84 g mL-1 Sulfuric acid purity = 98% Solution 2) 100 mL 0.02M potassium permanganate potassium permanganate Mw = 158.03 g mol-1 potassium permanganate purity = 99%
To 47.62 ml of wine were added 5 mL of concentrated KI solution and 32.11 mL of solution containing (0.7557 g KIO 3)/(100.00 mL solution). The wine+reagent mixture was acidified with 10 ml of 1 M HCI to create a known number of moles of I 2 by the reaction 10 3 + excessl + some H*-> 31 2 Some of this I 2 immediately reacted with the sulfite in the wine sample by the reaction SO 3 +12 --> products we don't care about The left over I 2 was titrated to a starch end point with 10.14 mL of 0.04521 M thiosulfate solution, by the reaction 12+ 25 20 32-> products we don't care about What is the concentration of sulfite in the wine, expressed in mM?
T Normal II Aralik Yok Baglik 2 Ronu Bagl.* x x GE A-D-A- ASeç Paragraf Stiller Düzenleme Ses Duzenley Yazı Tipi STEP1 Put some FeS particles into a big tube. Add 1 or 2 mL of 18% HCl solution onto FeS particles. Immediately close the tube with Pb(NO3)2 or Pb(CH:COO)2 immersed filtration sheet. STEP2 Follow the same steps up to closing tube by filtration sheet. Fix the glass funnel to the tube after adding HCl solution. Close the outlet of funnel with Pb(NO3)2 or Pb(CH3COO)2 immersed filtration sheet. Reaction between FeS and HCl: FeS+2HC1 FeCl2+H2S Reaction on filtration sheet: H2S+Pb(CH3COO)2 PbS+2CH:COOH 1. Why filtration sheet turned black in step1? 2. What happened filtration sheet in step2?
The scatter plot below shows the density of ethylene glycol solutions vs. the mass % of those solutions. Density (g/mL) 1.04+ 1.03- 1.02- 1.01 0.99- 0.98- 8 % 10 12 14 16 18 20 Mass % Q The equation for the line of best fit shown on the scatter plot is y= 0.001683 +0.9959. Use the equation of the trendline to determine the mass percent of an ethylene glycol solution with a density of 1.015 g/mL.