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- Highlight your values of A,B,C and D. For your question: A mL of B mol/L sodium phosphate solution is combined with C mL of D mol/L calcium bicarbonate. (Calcium bicarbonate is soluble.) A mL B mol/L C mL D mol/L 75.0 ml 0.300 67.5 0.350 Before you begin your reaction, you must accurately produce 1.500 L of your sodium phosphate solution from sodium phosphate trihydrate solid. Write out a procedure to explain all the steps you will take in the lab when making the solution to ensure that your solution concentration is accurate. Please include calculations that show the required mass of solid. Also include the correct names of all equipment used.A patient presents to the emergency department in a critical condition. The patient’s blood was tested and the concentration of carbonic acid (H2CO3) was found to be 4.0×10-4 M and bicarbonate ion (HCO3-) 3.062×10-3 M. Ka = 4.3 × 10-7 H2CO3(aq) ⇌ HCO3-(aq) + H+(aq) Show all calculations including equation(s) used. Calculate the pH of the patients’ blood. Based on your answer would you say the patient is suffering from Acidosis or Alkalosis?If we were handed a tuke of 2mg/mL BSA how much is required 20μL of each of the following Concentrations? to make zoul total bring up to volume with dH ₂0 @ 01125 mg/mL (1) 0,150 mg Ⓒ 0.50 mg/mL @ 0.75 mg/mL Ⓒ 1.0mg/ml /ML Can it be solved using C₂ C₁V₁ = C₂ V₂ If CI= V₁ yes, please show work. Vz
- The main constituents in vinegar are water and ethanoic acid (CH3COOH). In order to determine the concentration of acid in homemade vinegar, a student titrated 25 cm3 of 001 M NaOH against the vinegar. The equation for the reaction is: CH3COOH(aq) + NaOH(aq) ® CH3COONa(aq) + H2O(l) The following titration results were obtained: Burette readings (cm3) Rough 1 2 Final burette reading 20.10 38.90 31.40 Initial burette reading 0.10 20.00 12.50 Volume of vinegar used 20.00 18.90 18.90 (a) What volume of vinegar should be used in the calculation? (b) What is the mole ratio of NaOH:CH3COOH? (c) Calculate the number of moles of alkali in 25 cm3 of NaOH solution used. (d) How many moles of acid were used in the titration? (e) Calculate the…In a neutral solution, the [H*] is : * 1.0x10-14M zero 1.0×107M O 1.0x10-7MWhich of the equations below best represents how excess acid in the blood plasma can be removed in the lungs by breathing? H+ (aq) + 0. 2(g) OH + H₂ CO (aq) OH+ + O (aq) 2(g) → H, CO. H + O₂ (aq) 2(g) 3(aq) 3(aq) → H₂O(g) + CO2(g) + CO2(g) → H₂O H, CO3(aq) → HCO, OH t + HCO3(aq) → H₂ CO3(g) → H₂O(g) (aq) → H, CO3(aq) 3 (aq) + CO2(g) H₂O(g) + CO2(g)
- Identify the acid and conjugate base in each reaction. Calculate the pKa for each acid. List them in order from the strongest to weakest acid. The acid-ionization constants, Ka, at 25°C are listed for each. a. HC2H3O2 + H2O ↔ H3O+ + C2H3O2-acetic acid, KA = 1.7 x 10-5 b. HC7H5O2 + H2O H₂O+ + C7H5O2-benzoic acid, KA= 6.3 x 10-5 c. HC6H4NO2 + H2O ↔ H3O++ C6H4NO2-nicotinic acid, KA = 1.4 x 10-5Identify any combination reactions. (Select all that apply.) C4H10 + O2 → CO2 + H2O S8 + O2 → SO3 NaNO3 → NaNO2 + O2 HgO → Hg + O2 Ga + H2SO4 → Ga2(SO4)3 + H2 AgCl2 + H2 → Ag + HCl none of the above Identify any decomposition reactions. (Select all that apply.) C4H10 + O2 → CO2 + H2O S8 + O2 → SO3 NaNO3 → NaNO2 + O2 HgO → Hg + O2 Ga + H2SO4 → Ga2(SO4)3 + H2 AgCl2 + H2 → Ag + HCl none of the aboveConsider the following reaction at 25°C with the ΔG°’ = +1800 J/mol for the forward reaction.The molar concentrations at the beginning of the reaction were [A] = 19 mM and [B] = 10 mM.After 1 hour, the concentrations were [A] = 16 mM and [B] = 13 mM. Calculate the ΔG of the reaction at the 1 hour timepoint. Please round to 1 decimal point.Gas constant = 8.315 J/mol K
- Quinine ( C20 H24 N2 O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine, pK, = 5.1 and pK, = 9.7 ( pKp = – log Kp). Only 1 g quinine will dissolve in 1920.0 mL of solution. Calculate the pH of a saturated aqueous solution of quinine. Consider only the reaction | Q+ H2O= QH+ + OH- described by pK, where Q = quinine. pH =For the following reaction, 4.91 grams of water are mixed with excess chlorine gas. The reaction yields 12.5 grams of hydrochloric acid.chlorine (g) + water (l) hydrochloric acid (aq) + chloric acid (HClO3) (aq) What is the theoretical yield of hydrochloric acid ? grams What is the percent yield of hydrochloric acid ? %Acetazolamide is a carbonic anhydrase inhibitor that is used to treat glaucoma. It has two acidic groups and has 2 pKb’s as shown below: What is the concentration of acetazolamide (B), in a 0.5000 M solution of acetazolamide (B)? What is the concentration of hydrogen acetazolamide (BH+) in a 0.5000 M solution of acetazolamide (B)?