Using the working concentration of the standard glucose solution, the following standard solutionswere prepared:Test TubeNo.12345Table 6.2. Preparation of the standard glucose solutionVolume of 2.0 mM glucosesolution(in mL)0.000.150.300.500.70Volume of dH₂O(in mL)1.000.850.700.500.30Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5.Tabulate your answers and express them in two decimal places. Nelson's test was first performed in standard glucose solutions to generate a linear equation todetermine the concentration of D-glucose hydrolyzed from the glycogen isolate. The linear equation isconstructed by plotting the concentration of standard glucose (in mM) on the x-axis against theabsorbance of the resulting mixture at 510 nm on the y-axis. As such, the general form of the linearequation is:Abs =slope (in mM-1) [glucose] (in mM) + y - intercept

The molarity (M) of a solution is the number of moles of solute dissolved in one litre of solution.…

Using the working concentration of the standard glucose solution, the following standard solutions were prepared: Test Tube No. 1 2 W|N 3 4 45 5 Table 6.2. Preparation of the standard glucose solution Volume of 2.0 mM glucose solution (in mL) 0.00 0.15 0.30 0.50 0.70 Volume of dH₂O (in mL) 1.00 0.85 0.70 0.50 0.30 Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5. Tabulate your answers and express them in two decimal places.

Using the working concentration of the standard glucose solution, the following standard solutions were prepared: Test Tube No. 1 2 W|N 3 4 45 5 Table 6.2. Preparation of the standard glucose solution Volume of 2.0 mM glucose solution (in mL) 0.00 0.15 0.30 0.50 0.70 Volume of dH₂O (in mL) 1.00 0.85 0.70 0.50 0.30 Q11. Determine the concentration of the prepared standard glucose solutions in test tubes 1-5. Tabulate your answers and express them in two decimal places.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

pneumonia is characterized by fever (a body temperature) does the patient have a body temperturr that indicates that he has pneumonia? justify your answer with suitable caculation PLEASE.
The following data give the constant dissociation, K (for acetic acid at various temperatures) T("C) 0 10 15 25 K₂ 1.657 x 10 1.729 x 10 1.745 x 10-5 1.753 x 10 Part A Using the information that InK versus 1/T is a straight line with slope-AH/R. calculate AH for the lonization of acetic acid Express your answer with the appropriate units. AH 2.732 HA kJ mol Submit Previous Answers Request Answer Part B Complete previous panis) ? X Incorrect; Try Again; 4 attempts remaining Review | Constants I Periodic Table
Given the following data and the λmax determined in the previous questions, determine: 4) the molar absorptivity of cobalt at λmax of copper 5) the concentration of cobalt in mM 6) the concentration of copper in mM Copper concentration, mM λmax cobalt λmax copper 20.00 0.177 0.238 40.00 0.382 0.487 60.00 0.518 0.731 80.00 0.765 1.134 100.00 0.902 1.391 Cobalt concentration, mM λmax cobalt λmax copper 20.00 0.186 0.163 40.00 0.412 0.354 60.00 0.637 0.477 80.00 0.754 0.694 100.00 0.961 0.831 unknown, Abs at λmax cobalt 0.893 unknown, Abs at λmax copper 0.997
One technique for studying the energetics of protein structure is to monitor the struc- ture of the protein as a function of the osmotic pressure. In these experiments the os- motic pressure of the solution is varied by using polymers of different molecular weight and concentration. In an experiment poly(ethylene glycol) (PEG) with a molecular weight of 1000.0 g mol- was used. What concentration of PEG is needed to create an aqueous solution with an osmotic pressure of 150.0 Pa at 25°C? You may assume that PEG is uncharged and that it does not dissociate or aggregate.
Write the expression for Keq for the following reactions. In each case indicate whether the reaction is homogeneous or heterogeneous.(a) N2(g) + 3 H2(g) 2 NH3(g) Keq = PNH32 / (PN2 PH23) Keq = (PN2) (3 PH2) / 2 PNH3 Keq = PN2 PH23 / PNH32 Keq = 2 PNH3 / ((PN2) (3 PH2)) The reaction is (b) 4 HCl(g) + O2(g) 2 H2O(l) + 2 Cl2(g) Keq = PHCl4 PO2 / PCl22 Keq = 2 PCl2 / (4 PHCl PO2) Keq = 4 PHCl PO2 / 2 PCl2 Keq = PCl22 / (PHCl4 PO2) The reaction is (c) H2(g) + I2(g) 2 HI(g) Keq = 2 PHI / (PH2 PI2) Keq = PH2 PI2 / 2 PHI Keq = PH2 PI2 / PHI2 Keq = PHI2 / (PH2 PI2) The reaction is
Write the expression for Keq for the following reactions. In each case indicate whether the reaction is homogeneous or heterogeneous.(a) N2(g) + 3 H2(g) 2 NH3(g) Keq = PNH32 / (PN2 PH23) Keq = (PN2) (3 PH2) / 2 PNH3 Keq = PN2 PH23 / PNH32 Keq = 2 PNH3 / ((PN2) (3 PH2)) homogeneous or heterogeneous. (b) 4 HCl(g) + O2(g) 2 H2O(l) + 2 Cl2(g) Keq = PHCl4 PO2 / PCl22 Keq = 2 PCl2 / (4 PHCl PO2) Keq = 4 PHCl PO2 / 2 PCl2 Keq = PCl22 / (PHCl4 PO2)
Two different proteins X and Y are dissolved in aqueous solution at 37 ∘C. The proteins bind in a 1:1 ratio to form XY. A solution that is initially 1.00 mM in each protein is allowed to reach equilibrium. At equilibrium, 0.17 mM of free X and 0.17 mM of free Y remain. What is Kc for the reaction? Express your answer using two significant figures.
A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract using the solvent extraction technique. She therefore performs the following steps: Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of ethyl acetate. Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of dichloromethane. Given that: KD for the glycoside in ethyl acetate-water = 0.8 KD for the glycoside in dichloromethane-water = 0.9 (i)Calculate the total mass of glycoside extracted. (ii)If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the glycoside remaining in the aqueous layer after each extraction.
The osmotic pressures of solutions of an enzyme, denoted B, in water at 298 K are given below. Determine the molar mass of the enzyme. Cmass, /g dm-) 1.00 2.00 4.00 7.00 9.00 II/Pa 27 70 197 500 785 Slope: BRT Slope: BRTIM Intercept: RT Intercept: RTIM (a) Molar concentration, c, (b) Mass concentration, cmass,B Fig. 6 The plot and extrapolation made to analyse the results of an osmometry experiment (a) using the molar concentra- tion and (b) using the mass concentration. IVc, C mass,B
Calculate the gravimetric factor of the following. 2 Fe3O4 is sought(Analyte), 3 Fe2O3 is weighed (Precipitate)
Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Concentration iron(III) nitrate 0.00200 0.00200 0.00200 0.00200 0.00200 [Fe(NO3)3] (M) Concentration potassium thiocyanate 0.00200 0.00200 0.00200 0.00200 0.00200 [KSCN] (M) Volume Fe(NO3)3 (mL) 5.00 5.00 5.00 5.00 5.00 Volume KSCN (mL) 5.00 4.00 3.00 2.00 1.00 Volume DI water (mL) 0.00 1.00 2.00 3.00 4.00 Initial concentration [Fe3+] (M) 0.00100 0.00100 0.00100 0.00100 0.00100 Initial concentration [SCN‍] (M) 0.00100 0.000800 0.000600 0.000400 0.000200 Absorbance 0.269 0.192 0.154 0.104 0.052 Equilibrium [FeSCN2+] (M) 0.000198 0.000141 0.000113 0.0000765 0.000038 Equilibrium constant Kc Average Kc
Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D2) of hexanoic acid in water with respect to CCl4.