Pre-lab question #1: The Ksp for BaCO3 is 5.1 x 10°. How many grams of BaCO3 will dissolve in 1000 mL of water? 0.028 g O 0.014 g None of above O 0.007 g
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- Post-lab question #1: Ag2CrO4 (s) + 2 Ag* (aq) + CrO42- (aq) If the Ksp for Ag2CrO4 is 1.1 x 10-10, How many milligrams of Ag2CrO4 will dissolve in 10.0 mL of water? None of the above 100 mg 1.0 mg 10. mgTable 1: Temp vs. solubility data of ammonium chloride. Test tube g NH4Cl/10 mL H2O Crystallization temp. (ºC) 1 1.0 g/10 mL H2O 10 oC 2 1.8 g/10 mL H2O 20 oC 3 2.9 g/10 mL H2O 40 oC 4 3.8 g/10 mL H2O 65 oC 5 4.4 g/10 mL H2O 95 oC Use the table to plot a solubility curve for ammonium chloride on the graph provided below. For the best fit line, use a smooth curve. "Mass of Solute per 100 mL of H2O," should be written on the y-axis (use increments of 2g for every box). "Temperature (°C)" should be written on the x-axis (use increments of 10 °C for every 2 boxes).• How many grans and how many mL of 40.0 wt-% urea solution (density 1.111 g/mL) are required to react with 4.00 mol of Fe3+ in the following reactions? • (H2N)2CO + 3 H2O → CO2 + 2 NH4+ + 2 OH- Fe3+ +3 OH- + (x-1)H2O - FEOOH x x H2O(s)
- The Ksp for BaCO3 is 5.1 × 10-⁹. How many grams of BaCO3 will dissolve in 1000. mL of water?2 1/1 point Barium sulfate is a contrast agent for X-ray scans that are most often associated with the gastrointestinal tract. Calculate the mass of BaSO4 that can dissolve in 100.0 mL of solution. The Ksp value for BaSO4 is 1.5x109 6.2x103g 8.1x10-5 g 9.1x10-4 g 1.2x10gTable of chemicals and reagents with their physicochemical properties (name, molecular formula, molecular weight, pKa, melting point, boiling point, etc.) Write a short outline or a flow diagram of the procedure List and safety issues Read and understand the MSDS information for each chemical used in this practical Experimental procedure Please do not scratch the clear sides of the UV cuvettes as this will invalidate your results. Part 1: Preparation of a calibration curve A calibration curve should be constructed using at least five concentrations of the pure paracetamol standard supplied in the range 3-15 ug/mL as follows: Weigh about 150 mg of paracetamol accurately and transfer to a 200 mL volumetric flask. Add 50 mL of o.1 M NaOH and dilute to about 100 mL with deionised water (DI). Shake and make up to volume with DI water. Dilute 10 mL of the resulting solution to 100 mL (volumetric flask) with DI water (= stock solution). Prepare standard solutions containing 3, 6, 9, 12 and 15…
- 10-27. A 10.231-g sample of window cleaner containing ammonia was diluted with 39.466 g of water. Then 4.373 g of solution were titrated with 14.22 mL of 0.106 3 M HCl to reach a bromocresol green end point. (a) What fraction of the 10.231-g sample of window cleaner is contained in the 4.373 g that were analyzed? (b) How many grams of NH3 (FM 17.031) were in the 4.373-g sample? (c) Find the weight percent of NH3 in the cleaner.I had 500 mL solution of 0.300M HCI that I left on the bench. WhenI got back to lab the next day, the concentration of the solution was 0.5M. What volumne of my solution evaporated? 200 mL 300 mL 125 mL 500 mL 225 mLHow many mL of 0.779 M HNO3 are needed to dissolve 5.15 g of BaCO3? esc 1 F1 AAB 2 Q *** F2 W # 3 80 F3 E $ 4 000 000 F4 2HNO3(aq) + BaCO3(s) Ba(NO3)2(aq) + H₂O(l) + CO₂(g) R Cengage Learning | Cengage Technical Support % er oo 5 F5 MacBook Pro T A 6 F6 & 7 Y F7 mL * DII U F8 8 DO 9 1
- How many grams of Ba(103)2 (487 g/mol) can be dissolved in 400 mL of water at 25°C. (Ksp of Ba(1O3)2 = 1.57 x 10-9) Ba(103)2 Ba2+ + 2103 O 0.298 g 0.122 g 0.221 g O 0.926 g O 0.143 gQuestion 5 In Step 8 (see below, as well as in the presentation), three different slimes were prepared by adding different amounts of borax solution. Which of the following statements is/are correct? Step 8: Prepare the following slimes and evaluate their properties Sample 1 3 PVA solution 40 mL 40 mL 40 mL Borax solution 10 mL 5 mL 1 mL Deionized water O mL 5 mL 9 mL Breaking length Bounce height 30cm 70cm NA 5cm 10cm NA O The more borax we add, the more rigid the slime will become. O The less borax we add, the less elastic the slime will become. O The change in its properties is due to the added amount of water which will affect the structure of the slime. O The water is added in order to have the same final volume of reactants.The Ksp of CAF2 is 1.5 x 10-10, If CaF2 (s) is dissolved in pure water, what is the solubility in grams per liter (g/L)? О 2.6 х 10:2 O 6.8 x 10-4 О 3.3 х 10:2 O 4.1 x 10-2 О 3.3 х 10-4