What must you must pay attention to if you are using sodium bicarbonate (NaHCO3) as the basic wash? What practical top tip would you give when carrying out a wash using sodium bicarbonate?
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- How does dilution affect association or dissociation of acetic acid in water? make it brief and concise need it ASAP thank you!1. Prepare 50-mL of a 50 mM H,PO, solution in a 50-ml conical tube. Molar mass of NaH2PO4 H2O used is 138 moles 2. Check the pH of this solution and record. 3. A5 M NAOH solution has been provided. 4. Add 45 µl of 5 M NaOH into the 50 mM H2PO, solution. Check the pH and record. 5. Add 205 µl of 5M NaOH into the 50 mM H2PO4 solution. Check the pH and record. 6. Add 205 µL more of 5M NaOH into the 50 mM H2PO, solution. Check the pH and record. 7. Add 45 µl of 5 M NaOH into the 50 mM H2PO, solution. Check the pH and record. Complete the following table "predicted pH." Please show all work on a separate sheet of paper and attach. Note that the pK, of H2PO, is 7.2. What would be the predicted pH's? Would they be similar to the actual pH's from procedure? After 45 µl of 5 | After 205 µl more of 5M NaOH Original After 205 µl more After 45 µl more solution M NaOH of 5M NaOH of 5 M NaOH Actual pH 4.30 6.05 6.90 11.01 11.29 Predicted pHCalculate the pH of 25 mL of 0.175 M CH3COOH with 30 mL of water added after the addition of 20 mL of 0.1 M NaOH. Show work, please. This pertains to the weak acid strong base exercise.
- pH pOH [H*] [OH'] acid or 2.41 10-6 gs for all answers) US VI 11:41 Cbp esc #3 24 & backTKIS test allows 3 attemptsS. This is attenmpt number 1. Force Completion This test can be saved and resumed later. Your answers are saved automatically. Question Completion Status: Moving to another question will save this response. Question 15 Determine the reaction of the salt in aqueous soln. Write A (if acidic), B (if basic).or C (if neutral) (Note: case & space sensitive) Be(NO3)2 Moving to another question will save this response.REPORT SHEET Saponification and Soaps A. Saponification: Preparation of Soap Describe the appearance of the soap you prepared. A longht yelow Cyoih line)mirture upon (yoik heating B. Properties of Soaps and Detergents Tests Lab Soap Commercial Soap Detergent Bayic neutal YeS Basic Yes NO 1. pH Yes 2. Foam NO NO 3. Oil 4.1% CaCl2 コ PP+ Yes Ppt. 1% MgCl2 1% FeCl3 Questions and Problems Q1 Which of the solutions in Part B were basic? Q2 How do soaps made from vegetable oils differ from soaps made from animal fat?
- Acetone Water H. H OH . H-C-C-C-H H. H H Analysis Question 4: Use the image above...Which solvent is the Na* and Cl ions more likely to +. attract to? Answer hereSHOW WORK. Perform the following calculations & determinations for this solution. 6.84 x 10 2 M OH Calculate the molarity of H. Enter the value in the first blank (with proper sig figs) and the exponent with proper sign in the second blank. x 10 M. Calculate the pH for this solution and report the result 5 2 decimal places. pH: Is this solution acidic, basic, or neutral? Enter the term that applies. Relative acidity:5. a) The Kw value that we normally use is for room temperature (25°C). Calculate the equilibrium H+ concentration and pH of pure, neutral water at 0.0°C (Kw= 1.14 x 10-15at 0.0°C) b) Methylamine (CH3NH2) is a derivative of the weak base ammonia. Write the equation for the ionization of methylamine in water, and use the I.C.E. method to find the pH of a 3.75 M CH3NH2 solution.(Kb= 4.37 x 10-4at 25°C)
- Report - Goog X >NGLSync Porta X OWLv2 | Online X [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 8 more group attempts remaining a 65°F Scholarship Ap X ctivity.do?locator-assignment-take Ka for nitrous acid, HNO2, is 4.00×10-4. Ką for benzoic acid, C6H5COOH, is 6.40×10-5. Ka for hydrocyanic acid, HCN, is 6.20×10-10. What is the formula for the strongest conjugate base? Submit Answer (99+ # OF 4 8:56 E 5/28/2Fuqua - Learn ||| www-awu.aleks.com = X F (SPAN-101-001) Beginning Spar X VHL Central | Sections lekscgi/x/isl exe/1o_u-lgNslkr718P3jH-IBjuJnuCDtT6kRBabGFF O ACIDS AND BASES Predicting the relative acidity of binary acids 0 Enter the chemical formula of a binary molecular compound of hydrogen and a Group 7A element that can reasonably be expected to be less acidic in aqueous solution than HBr, e.g. have a smaller K. Explanation $2 Check 00 X X + Gsodium hydroxide - Google Sea 3MoAkZ_UVx0N202gq0GbTcR2WLHPX1Jb033xbT1iMAMuscRjht THLJcza5tvK2zINR T3W4vbTy21oBATO S 1/5 2023 McGraw Privacy Center Acc Alasia E Jan 23 ala @Purple/Black Iridescent X wilmington post- www-awu.aleks.com/alekscgi/x/lIsl.exe/ O ACIDS AND BASES Interconverting pH and hydronium ion Each row of the table below describes an aque Complete the table. That is, fill in any missing digits. [1,0] solution pH - 12 mol/L 9.1 × 10 ||mol/L 7.13 9. mol/L C 6.7 X 10