When 5.58 g of a solid mixture composed of NH4CI and CaCl2 was dissolved in 100.0 mL of water, the temperature of the water rose by 4.86°C. How many grams of each substance was in the mixture? Include the mass of salts in calculation of heat generated. g NH4CI = i g CaCl2 = i
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- Using the formula V₁D₁ = V₂D2, what volume of a 1/100 (10-2) dilution would you need to produce 100 mL of a 1/10000 (10-4) dilution? (Note: provide your answer in decimal format to three decimal places.)a) What are the methods used for cholesterol determination? Explain the basis of the method you used in your experiment by writing.b) In the experiment conducted for the determination of cholesterol, the function of the calibration curve obtained using standard cholesterol solutions of 25-400mg/dl was determined as y= 0.0009x.Since the absorbance of the serum sample was determined as 0.28, how many mg/L is the amount of cholesterol in the sampleIn the experiment performed for the determination of cholesterol, the function of the calibration curve obtained using 25-400mg/dL standard cholesterol solutions was determined as y= 0.0009x. If the absorbance of the serum sample is determined as 0.28, what is the amount of cholesterol in the sample, in mg/L?
- You will be given 1 mL of a 2.0 mg/mL solution of bovine serum albumin (BSA) and 1 mL of a 2.0 mg/mL solution of bovine gamma globulin (BGG). From these solutions, you will need to make 100 μL of each of the following standards using 1x MBP purification buffer as the diluent for preparation of a standard curve: 1000 μg/mL, 750 μg/mL, 500 μg/mL, 250 μg/mL, 125 μg/mL, and 0 μg/mL.For the following results of Thermodynamics of Borax Solubility, the volume of Borax solution titrated by HCI is 8.00 mL. Table 1. Volumes of hydrochloric acid required to titrate a saturated borax solution at varying temperatures. The hydrochloric acid was a solution standardized at 0.2912 M. Borax Volume added (mL) Temp. (°C) 8.00 8.00 8.00 8.00 8.00 HCI Volume (mL) 50.5 33.75 40.7 27.02 30.0 17.95 20.2 13.43 10.3 8.55 Using Thermodynamic formula (R= 8.31 J/K•mol) and the above results, (d) AH˚ = (kJ/mol) Type your answer....The temperature dependence of the vapor pressure is given by the equation: ΔΗ RT Inp = In A – Where: p= vapor pressure T = temperature A = pre-exponential constant AHvap = enthalpy of vaporization In order to solve for the enthalpy of vaporization, AHvap, you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer) ΔΗ RT + Inp = + In A Drag and drop your selection from the following list to complete the answer: 1 1 In In A - In A K
- What is the concentration of B expressed in terms of A if the Kd is 33.0 uM, and the concentration of AB is 56.0 uM? A + B AB OB= 1850/A OB= 23 - A OB=23+ A OB= 0.589/A1.0 ml of serum albumin (BSA) solution was precisely diluted to 100 ml with a buffer solution, and the absorbance at 280 nm was measured from this buffer solution at a distance of 1 cm from the light. The result was A=1.0. BSA is 0.1%(=0.1g/l). The absorptivity is e(0.1%)=0.667, so 1g/l solution gives an absorbance of 0.667. What was the original protein content? Report in the result unit mg/ml with an accuracy of 0.1 mg.For the following results of Thermodynamics of Borax Solubility, the volume of Borax solution titrated by HCI is 8.00 mL. Table 1. Volumes of hydrochloric acid required to titrate a saturated borax solution at varying temperatures. The hydrochloric acid was a solution standardized at 0.2912 M. Borax Volume added (mL) Temp. (°C) 8.00 8.00 8.00 8.00 8.00 HCI Volume (mL) 50.5 33.75 40.7 27.02 30.0 17.95 20.2 13.43 10.3 8.55 Using Thermodynamic formula (R= 8.31 J/K•mol) and the above results, (e) AS° = (J/K⚫mol) Type your answer...
- The Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below. Ag2CrO4 Ag(IO3) Ksp 1.12 x 10-12 3.17 x 10-8 Based on these Ksp values, which of the following is true? Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form. b. In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form. c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). d. In the solution consisting of 0.200 M CrO42- and 0.200 M IO3-, Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.For the following results of Thermodynamics of Borax Solubility, the volume of Borax solution titrated by HCI is 8.00 mL. Table 1. Volumes of hydrochloric acid required to titrate a saturated borax solution at varying temperatures. The hydrochloric acid was a solution standardized at 0.2912 M. Borax Volume added (mL) Temp. (°C) 8.00 8.00 8.00 8.00 8.00 HCI Volume (mL) 50.5 33.75 40.7 27.02 30.0 17.95 20.2 13.43 10.3 8.55 Using Thermodynamic formula (R= 8.31 J/K⚫mol) and the above results, (b) What is the y-intercept of the best fitting line for this data? Type your answer...Tirofiban (C22H36N2O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281 mg/mL in a concentrated solution. (C22H36N2O5S.HCI.H₂O A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.)