What percentage of the recommended daily dose of calcium (1,150 mg/day) does 1.0 L of your water provide? Show all calculations. Tap Water Trial 1 Tap Water Trial 2
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What percentage of the recommended daily dose of calcium (1,150 mg/day) does 1.0 L of your water provide? Show all calculations.
|
|
Tap Water Trial 1 |
Tap Water Trial 2 |
Tap Water Trial 3 |
|
Initial Syringe Reading |
1.0ml |
1.0ml |
1.0ml |
|
Final Syringe Reading |
0.65ml |
0.68ml |
0.67ml |
|
Volume of EDTA Consumed |
0.35ml |
0.32ml |
0.33ml |
|
Water Hardness ppm CaCO3 |
70.07 ppmCaCO3 |
64.064 ppmCaCO3 |
66.066 ppmCaCO3 |
|
Average ppm
|
66.73 ppmCaCO3 |
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- Part III: Determination of Saturated Solutions Molarity (saturated) Tube # Temperature (°C) Molarity (dilute) Absorbance 2 0.6 0.157 20.1 0.291 4 37.6 0.351 50.1 0.500 6. 70.9 0.714 show calculation for Tube #2, Molarity (dilute) (use graph equation): show calculation for Tube #2, Molarity (saturated): 1. Is the relationship between solubility and temperature direct or inverse? Explain.Graph: a) InC versus 1/T graph to determine the entalphy of solution. Show your calculations on the graph. - 10-77 - 10.08 -9.79 3.35x 10-3 3.25x103 3.14 c103 3.05x 10 2.96* 10-5 InC - 10.41 -9.50 1/T (K-')Concentration of Acetic Acid in a Vinegar Solution. Average molarity of NaOH Volume HC₂H30₂ sample Final buret reading Initial buret reading Volume NaOH (Show all units and all calculations) Molarity of HC₂H30₂ (unrounded) Average molarity of HC₂H302 (unrounded) Deviations Average deviation Best estimate for molarity of HC₂H302 Average mass percent HC₂H302 46.4mL Oml Ran out of Base ↓ ↓ ↓ ↓ 10.014 HOA je beart giov isults weari?! ferottelucuny Cambia) 10 Kousad Question 1. A Rolaids tablet contains calcium carbonate that neutralizes stomach acid. If 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a Rolaids tablet? CaCO, (s) + 2HCl(aq) → CaCl₂ (aq) + H₂O (1) + CO₂ (g)
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- The amount of water which should be added to 0.700 M NaOH solution to make 100 mL 0.250 M solution is 19 Multiple Cholce 00:5213 79.6 mL 35.7 mL 55.2 mL 64.3 mL 30.5 mL Mc Graw Hill Type here to search 立2. Make the following solution isotonic with respect to membrane. Provided that you have isotonic diluting solution, calculate the volume in mL of isotonic solution that may be prepared by mixing drug with water. Rx Phenacaine (E = 0.20) 0.06 g Sterile water, ad 100 mL Sig. make isotonic solution INSTRUCTIONS: Justify your answer through calculations which contains; GIVEN FORMULA USED SUBSTITUTION CALCULATED VALUE FINAL ANSWERHow much of the preservative is needed to prepare a 120-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad.2000 mL a. 0.12 g b. 60 g c. 48 g d. 0.012 g
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