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Why do we plot mV vs. log[Cl-] instead of mV vs. [Cl-]? What would the mV vs. [Cl-] graph look like?
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- 1) Listen The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Now that you have calculated the new equilibrium constant (K) with this common ion effect then which way will the chemical equilibrium shift? need more information to be determined at equilibrium chemical equilibrium will shift to the right first and then to the left chemical equilibrium will shift to the right chemical equilibrium will shift to the left 201591..docx LAB EXP. #3 -..docx Show AllThe catalytic activity of an insect aminopeptidase was investigatedusing an artificial peptide substrate. The Vmax was 4.0 × 10-7 M/s and the KM was 1.4 × 10-4 M. The enzyme concentration used in the assay was 1.0 × 10-7 M. What is the value of kcat? 2.86 x 10-3 M 0.25 M/s 4.0 s-1 2.86 x 104 s/M 0.25 s-1(9.29 × 105/8)-20.81 = with correct sig figs
- With the enzyme activity results in Table 1, without plotting a graph, determine: a) b) c) Vmax (explain) Why is the velocity v constant at [S] greater than 2 x 10° M? What is the free [E] at [S] = 2 x 102 M? Table 1 [S] (mol/L) 2 x 10-1 2 x 10-2 2 x 10-3 2 x 10-4 1,5 x 10-4 1.3 x 10-5 v (umol/min) 60.00 60.00 60.00 48.00 45.00 12.00106CO2 + 50 SiO, + 16HNO, + H,PO, + 0.001FE + 122H,O → (CH,0),06(SiO,)so(NH3),e(H3PO,)Feo.001 + 13802 a. Calculate the change in (total) CO, in the ocean surface mixed (Temp = 25C, Salinity = 35 ppt) layer if 1 nM of iron is added (and consumed), assuming it is indeed the limiting nutrient. %3D b. Would this change in total CO, affect the alkalinity of the surface ocean? Why/why not? c. How much would the pH of the surface change following this primary production (assuming no respiration/gas exchange)? Use pCO2 = 420 ppm and total alkalinity = 2.2 mM to start your calculations. %3Done or more answers Which of the following will result in an increase in the calculated Ksp of Ca(OH)2? Receiving flask used during filtration was contaminated with HCl The Na2CO3 primary standard solution was overtitrated The saturated Ca(OH)2 solution was overtitrated Some Ca(OH)2 solid passed through the filter paper during filtration The water used to dissolve Ca(OH)2 solid was greater than the required amount
- keAssignment/takeCovalentActivity.do?locator=assignment-take n progress Q Search 40 eaction is Submit Answer In the following equation for a chemical reaction, the notation (s), (I), or (g) indicates whether the substance indicated is in the solid, liquid, or gaseous state. 2NO(g) + 2H₂(g) →→→ N₂(g) + 2H₂O(l) + energy Identify each of the following as a product or a reactant: NO(g) H₂0(1) H₂(g) N₂(g) When the reaction takes place energy is V2 7 L Retry Entire Group = 18 + Use the References to access important values if needed for this question. fg 0 OWLv2 | Online teaching and lear X hp 9 8 more group attempts remaining f10 MO f11 PAI + 112 G ins prt sc Ⓡ ✰ FRIEVIDUS Next> ^ @ ¹0 delete backspace home lock 5:- 5/146. A 190 lb worker in a factory received an exposure to AB which has a molecular weight (MW) of 278 g/mole. AB is completely metabolized in the body to A (MW 194) and B. A is completely excreted in the urine and B is further metabolized to five different compounds. A 24-hr total urine sample was 2060 ml, Analysis showed the concentration of A in the urine was 1.28 ng/mL What was the absorbed dose of AB in ug/kg body wt?The sketch that indicates the change that occurs when 1.0 mol/ LH,PO,tan is added to 20 mL of 1.0 moVL NH, (ae) is 14 12 10 6. 2- 20 Volume of acld added (mL) 10 30 14 12 10 10 20 Volume of acld added (mL) 30 14 12 10 10 20 30 Volume of acid added (ml) 14 12 10 20 Volume ol acid added mt.) 10
- fill |||||| N20 (9)+NO₂(g) 3N0 (9) mil removing No in which direction will the equalibrium be shifted? 1) adding N₂0 11/ removing N₂0 111) removing N₂0. adding catalyst, AH²= +155.7KJDrug Concentration A pharmaceutical companyclaims that the concentration of a drug in a patient’sbloodstream will be at least 10% for 8 hours. Supposeclinical tests show that the concentration of a drug (aspercent) t hours after injection is given byC(t) = 200t/2t2 + 32During what time period is the concentration at least10%? Is the company’s claim supported by the evidence?A river water sample of 25°C is contaminated with diazepam with initial concentration of 5000 ppb (or ng/L) when it secondary biodegradation rate in water, Kd = 10^1.3 (cu cm/mol-sec) at 25°C and molar mass of diazepam is 284.7g/mol. What is the half life of the diazepam in hours? Note: I need right answer with clear calculations.