Lab 8

To enter exponential values, use the format 1.0e-5. Solution 1.10 M Acetic acid (mL) 0.900 M Sodium acetate (mL) [H30*] (M) 1 8.00 2.00 2 7.00 3.00 3 6.00 4.00 4 5.00 5.00 4.00 6.00 6. 3.00 7.00 7 2.00 8.00 8 1.00 9.00 LO

Concentration of TZ stock solution (μMμM) 42.06

f the tolerance of a 50 mL Burette is \pm 0.05 mL, which of the following would not be acceptable readings to record? 9.3 mL 43.02 ml. 22.3 mL 0.65 mL 52.45 mL 30.07 mL 15.30 mL 36.55

MULTIPLE CHOICE: Choose the letter of the best answer Please answer all questions correctly 1. The standardization of volumetric solution does not require hydrochloric acid. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 2. In the standardization of its volumetric solution, the primary standard is dried to constant weight, which means drying shall be continued until two consecutive weighings do not differ by more than 0.50 mg. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 3. In the standardization of its volumetric solution, potassium iodide was added to A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 4. Starch is the indicator of choice for these procedures because it forms intense blue coloration with the solution. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E. C and D 5. In the standardization of its volumetric solution, the reaction needs to be…

Table #2 Worktable for BCA Assay Standard Water (μl) Tube # 1 2 3 4 5 6 7 8 9 0 125 325 175 325 325 325 400 400 BSA source (μl) 300 stock 375 stock 325 stock 175 of tube #2 325 of tube #3 325 of tube #5 325 of tube #6 100 of tube #7 0 Protein (ug) Add the volumes listed in Table 2 to each tube. Add the water first and then the appropriate standard. Pipette each of the protein samples directly into the water, do not dribble on the side of the test tubes. The standard is at a concentration of 2 mg/ml and contains bovine serum albumin (BSA). Calculate the amount of BSA protein added to each of the tubes and write this in Table 2 (Protein (ug)).

9/5(31)+32

i need help calculating slope and inverse slope pleas

STANDARD SAMPLE PREPARATIONS FOR ABSORBANCE & CONCENTRATION DATA Concentration of stock nickel sulfate hexahydrate solution = .400 Molarity Sample Volume Absorbance Concentration (In Molarity) a 5 mL .179 10 mL .329 15 mL .588 20 mL .760 25 mL .939 Reference Blank = 0 Please show how to find Molarity, please show steps. Thank you and stay safe.

Please type out and or diagram Your solution in a way that is easy to read I have bad eyesight and cant read cursive must be typed  so that I can read it

Experiment 3 0 1 2 3 6 (mL) 25.00 mL 25.00 mL 25.00 mL 25.00 mL 25 00 mL 33 Create a graph displaying the relationship between Concentration and Density for the sugar solution. The x-axis on the chart will be Concentration and the y-axis is Density. Upload an image of the graph into Graph 1. 26.87 g 25.2 g 24.9 g 24.9 g 24.6g Data Table 8 1.075 g/mL 1.008 g/mL 0.996 g/mL 0.996 g/mL 0 984 g/mL ... EEE Data Table 9 m/v) 32% 32% 32 % 32% Graph 1 2.5 mL 2.5 mL 4.5 mL 30 mL 6.0 mL m/v) 32% 3.2% 5.76 % 3.84 % 7 68 % Data Exercise 3

0+ 4000 A B RAVENEER NN 8.19 6.74 6.00 5.00 4.00 9.87 7.66 3.00 2.00 Peak A (3171 cm-1) = Peak B (1669 cm-1) = 1.00 0.00 1. Empirical Formula = C7H602 10.0 8.0 6.0 4.0 2.0 0.0 5/ppm

Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i days

Three students did a chromatography experiment, where Rf = distance of solute / distance of solvent. What could be the possible errors why student 3 had results that are quite far from that of students A and B?

Question 28

0.4ml to minims

• Stock solution: 1000 mg/L Target sample concentrations: 50-400 mg/L • Create a 5-point standard dilution to cover the test • If each test only needs 10 mL, make plans to make the dilution so you have 20 mL of each concentration. ·

How do you find the standard deviation with these calculations?

The solubility of an unknown liquid was measured 4 times. The average solubility is 0.05897 mL/mL and the standard deviation is 0.0027 mL/mL. How should those values be reported? O 0.058970.0027 O 0.0590±E0.0027 0.059±0.0027 O 0.058970.003

Can someone check to see if #9 through #12 are correct with the information provided