1. Mass of crucible lid 2. Mass of crucible + lid + sample before heating 3. Mass of crucible + lid+ sample after heating 4. Mass of sample (#2-#1) 5. Mass of residue (BaCl₂) (43-#1) 6. Mass of water lost_(#2 - #3) 7.% of water in sample_(#b/#4) X 100 8. The value of x in BaCl₂ xH₂O 15.110 g 17.452 g 17.107 g 2.342 g 1.997 g 0.345 g 14.731 perimental data above complete the chart. Show calculations below
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- 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. dilution factor for ALPHA from stock solution = 0.167 dilution factor for BETA from ALPHA solution = 0.0476 part c and d?Lactated Ringer’s/5% Dextrose solution contains: 6 g/L of Sodium Chloride (NaCl MW 58.5) 3.1 g/L of Sodium Lactate (C3H5O3Na MW 112) 0.3g/L of Potassium Chloride (KCl MW 74.5) 0.2g/L of Calcium Chloride (CaCl2•2H2O MW 147) 50g/L of Dextrose (C6H12O6 MW 180) You receive an order to increase the Potassium ion concentration to 0.045 mEq/mL. How many mL of 14.9% Potassium chloride injection should be added to 1L of the above solution to increase the potassium ion concentration to 0.045 mEq/mL ____________________mL 14.9% KCl injectionI want only handwritten clearly uploaded solution asap otherwise i will downvote.
- Pls help me with the following and make sure its 100% its important asap, thank you smTo a 0.5 g sample of impure NaCl are added 0.784 g of pure AgNO3 (MW = 169.88) crystal. This is in excess of the amount required to ppt. All the Cl as AgCl. After dissolving and filtering out the pptd. AgCl, the filtrate requires 25.50 ml of 0.028M KCNS. What is the percentage of NaCl (MW=58.44) in the sample? A. 55.40 % B. 50.10% C. 45.60% D. 100%A 0.0200 gram blood sample was decomposed by a microwave digestion technique followed by dilution to 100.0 mL in a volumetric flask. Aliquots of the sample solution were treated with a lead complexing reagent and water as follows: Solution 1: 10.0 ml blood sample + 20.0 mL complexing agent + 30.0 mL H20. Solution 2: 10.0 ml blood sample + 20.0 mL complexing agent + 26.0 mL H20 + 4.00 mL of 78 ppb Pb2+ standard. The resulting solutions were analyzed by UV/Vis at 375 nm. Absorbance for solution 1 = 0.155 and for solution 2 = 0.216. Calculate the concentration of lead (ppb) in the original sample.
- A sample of iron ore weighing 800 mg was treated with HNO3 , boiled to dryness and redissolved in dilute HCl. After filtration and removal of undissolved silica, the liquid was passed through a Walden reductor. The collected sample was titrated with 0.0210 M KMnO4 , requiring 12.0 mL to reach the end point. Calc %Fe (55.845) in the ore.A chemist received different mixtures for analysis with the statement that they contained NaOH, NaHCO3, Na2CO3, or compatible mixtures of these substances, together with inert material. From the data given, identify the respective materials, and calculate the percentage of each component. 1.000g samples and 0.2500N HCl were used in all cases. (A) For Sample W: With PP, 24.32ml was used. A duplicate sample required 48.64ml with MO. (B). For Sample X: The addition of PP caused no color change. With MO, 38.47ml of the acid was required. (C). For Sample Y: To cause a color change in the cold with PP, 15.29ml of the acid was necessary, and an additional 33.19ml was required for complete neutralization. (D) For Sample Z: The sample was titrated with acid until the pink of PP disappeared; this process required 39.96ml. On adding an excess of the acid, boiling, and titrating back with alkali, it was found that the alkali was exactly equivalent to the excess acid added.You are given a container with Na3PO3 that is reportedly contaminated. You are asked by your supervisor to determine the percent purity of that sample in order to know the next measures to be taken by the plant. The following are the procedures that you need to do: a. Dissolve sample weighing 1 g in 35 mL water. b. Prepare solution with 45 mL 3% w/v HgCl2, 30 mL 10% w/v C2H3NaO2 and 10 mL CH3COOH. c. Digest sample then filter then rinse the precipitate that weighs 0.2857 g. d. Compute for the % purity.
- from this pfd of nitrobenzene production show material balance at mixing -the conversion is 99% and production 1000 ton/dayThe water in Fell city also contains 30 μg/L of chloroform (formed in the water treatment plant), 5 μg/L of chlorpyriphos (a persticide), and 10 μg/L of chromium VI. Given the reference doses below, calculate the total hazard quotient. State which compound is the total HQ is acceptable. References doses (all mg/kg.d): 0.01 for chloroform, 0.0003 for chlorpyiphos, and 0.003 for chromium VI. Answer: 0.66Can mass balances be derived using the whole basin as control volume when dealing with (a) PF basins and (b) CM basins? Explain why or why not