Question 2 The molar conductivity at infinite dilution of hydrobromic acid, sodium acetate, & sodium bromide at 298 K are 520.1 Scm²mor1, 105.9 Scm2mol1, and 186.3 Scm2molr1, respectively. Determine the molar conductivity at infinite dilution of acetic acid.
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- Write the K, expressions for the following two reactions. 1st attempt l See Perio Part 1 Do not include states of matter, multiplication symbols, or extra spaces. Use brackets [] to indicate concentration. If the concentration of a substance should be "1", then do not include it in the expression. Complete the Kexpression for the weak acid behavior represented by НСООН (аg) + н(аg) +НСОО (ад) X x, = +, log. cos. K.If K = 2.35 & K, 1.32 x 1010, Suppose 50ml of 0.010M aqueous amine is extracted with 100ml of benzene. What % will remain in aqueous sol" at (a) pH - 9 and (b) pH = 11.0 OA a. 51.1% b. 18.9% В. a. 29.2% b. 14.9% a. 48.6% b. 24.2% O D. a. 64.6%10.) Calculate the activity coefficient of K* in 0.050 M KNO3.
- out of f A relatively flat region of a pH curve where a nearly constant pH is maintained. The point during a titration when there is a sudden change in some observable property of the solut conductivity. With sufficient oxygen present, pentane burns according to the reaction: C5H12(l) + 802(g) → 5CO₂(g) + 6H₂O(g) What volume (in L) of oxygen at SATP is required to produce 48.0 L of CO₂(g) at SATP? mmmm Express your answer with three significant digits. Do not include units! L A sample of rainwater is poured into five test tubes. A different indicator is Proctorio is sharin table.The problem solved above needs some clarification In step 3 the phosphoric acid molarity is 0.0025 based on 0.005M 2 . The assumption is 0.005/2=0.0025M However using the same math for ZnO we get 0.004 M not 0.003 M or 0.012/3. What am I missing ? Further in step 2 you claim M = ppm (Mw) (1000) but this formula does not provide either answer as written unless you use ppm/Mw then divide the answer by 1000. Please clarify the steps again more clearly. Thank youHow do you calculate the nominal of Na2S2O3 of the solution?
- 100mL of 0.5 M sodium hydroxide was used to completely titrate 150 mL of H3PO4. What was the original molar concentration of the H3PO4 solution?Formulate a hypothesis regarding the solubility of aspirin at different pH.The experimentA) Three teaspoons of water (approx. 15 ml) were added to one tablet said to contain 300 mg of aspirin. Fizzingwas observed. Most of the tablet dissolved, but there were some solid particles. By heating the mug in amicrowave for 10 second increments until the water came to the boil (approx. 3x), all of the solid particlesdissolved. The solution was left to cool to room temperature and then placed in a fridge and NOTHINGHAPPENED. Try this yourself if you can spare two aspirin tablets, your results might look different.• Questions to ask:1. What might the fizzing bubbles be?2. Can you give a chemical explanation?3. Can you write a chemical reaction equation with aspirin reacting with something to give a gas and aspirinin another form?4. What might be the formulation (what the manufacturer mixes with aspirin in making the tablet) “trick”for aspirin to improve solubility?5. How does this compare with…The analysis of a water is as follows Ca+ 78 20 Specie [mg/L] Alkalinity SO,2- CH pH 96 8.1 282 Na+ 106 K+ Mg2+ 30 126 12 Draw a meq/L bar graph (a) (b) Determine the Calcium carbonate and non-carbonate hardness in meq/L. (c) Determine the Magnesium carbonate and non-carbonate hardness, in meq/L. ca-NCH, Mng-eH mg-NCH. ull Ca- CH
- A 50.00-mL sample of a white dinner wine required 25.87 mL of 0.03291 M NaOH to achieve a phenolphthalein endpoint. Express the acidity of the wine in grams of tartaric acid (H2C4H4O6; 150.09 g/mol) per 100 mL.A 20-mL vial of concentrated ammonium chloride solution containing 5 mEq/mLis diluted to 1 liter with sterile distilled water. Calculate (a) the total milliequivalent value of the ammonium ion in the dilution and (b) the percentage strengthof the dilution.Department of Chemistry University ofr Ghana School of Physical & Mathematical Science Equitibria in aqueous solutions (H=1, C-12, N=14, 0=16, F-19, Na = 23, Ba = 137.2, Ca = 40, S-32, CI-35.5, Br-80, Sr-88, 1=1271 1. Explain the following: a). Strength of an acid b). Percent fonization c). Titration curve dy. Equivalence point 2. In each of the reactions, identify the Lewis acid and base: a) AICIs (aq)+ CI (aq)- AICIlrlaq) b) Zn(OH) (aq)+ 20H (ag) Arrange the substances in each of the following sets in order of incrensing acid strength. a) SiHa, PH3 H2S, HCI b). HCIOs, HBRO3, HIO; c). NH3, CH NH2 d). HBr, HF, HCI, HI 4. Arrange the substances in each of the following sets in order of increasing strength of Prønsted- Lowry base. a). NH3, NH2 5. How are acidic, basic and neutral solitions in water defined in terms of; a). [HO*] and [OH] 6 Calculate the volume of 0.025 M HCIO4 solution that would just neutralize 30.0 ml of 0.0100 M 1DaOHa solution. -Zn(OH), (aq) 3. b). OH, HS, C). Cl, I…