assignmentProblemID=142966924&offset3=next CHE154-H Gen Chem II Bronikowski S20 Part A Determine the percent ionization of a 0.245 M solution of benzoic acid (K, = 6.5 x 1) Express your answer using two significant figures. > View Available Hint(s) 1 ΑΣφ ха Хь х IXI X•10" Submit Previous Answers

Find the volume in liters of carbon dioxide gas (CO2) produced at 1.00 atm pressure and 25.0 ∘C from 5.37 mL of 1.00 M HNO3(aq) solution with an excess of sodium carbonate (Na2CO3) according to the unbalanced reactionHNO3(aq) + Na2CO3(aq) → NaNO3(aq) + H2O(l) + CO2(g) Give the answer with 3 or more significant figures.

Can you help me determine  the required amount of 500mg ascorbic acid tablets to puverize  the necessary amount of distilled water to make the desired concentration of stock solution (0.1M) Show complete and justifiable computations pls.

5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. dilution factor for ALPHA from stock solution = 0.167 dilution factor for BETA from ALPHA solution = 0.0476 part c and d?

Acetaminophen or paracetamol, the active ingredient in many pain killers absorbs in the UV range with a λmax at 250 nm in neutral solutions (methanol usually). Its extinction coefficient is 14 mM-1cm-1. Each commercially available tablet (Tylenol, Panadol or Herron) contains 500 mg paracetamol. Its molecular weight is 151.1. Using this information, calculate the dilution required to analyse the concentration of paracetamol in a commercially available paracetamol tablet. Start by dissolving the tablet in 100 mL methanol. Show working out.

A mixture of pure BaCO3 and pure Na2CO3 weighs 1.000 g and has the total neutralizing power of 15.37 meq of CaCO3. Calculate the percentage of combined CO2 in the mixture and the weight of Li2CO3 that has the same neutralizing power as 1.000 g of the above mixture. Note: include up to 4 decimal places Please explain each step

A 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali and thefollowing volumes of acid were recorded: 9.88   10.18   10.23    10.39    10.21   Calculate the 95% confidence limits of the mean and use them to decide whetherthere is any evidence of systematic error.

The thiourea in a 1.455 g sample of organic material was extracted into a dilute sulfuric acid solution and titrated with 37.31 mL of 0.009372 M Hg2+ via reaction: 4(NH2)2CS + Hg2+ →[(NH2)2CS]4 Hg2+ P.S. Answer only the last two letters of the following questions. (Only C and D) a. Is this an example of total analysis technique or concentration  technique? Explain.  b. Calculate the percent (NH2)2CS ( 76.12 g/mol) in the sample.  c. What is classification of the analysis based on the amount of sample and amount of analytes present? Explain. d. If the true value is 10.00%, calculate the absolute and relative error.

When drinking water is disinfected with chlorine, an undesired byproduct, chloroform (CHCl3), may form. Suppose a 70-kg person drinks 2 L of water every day for 70 years with a chloroform concentration of 0.08 mg/L (the drinking water standard). Potency factor for chloroform = 6.1 x 10-3 (mg/kg-day)-1 The upper-bound cancer risk for this individual. a. 0.545 b. 5.45x10-6 c. 5.45x10-4 d. 5.45x10-10 e. 14x10-6  If a city with 300,000 people in it also drinks the same amount water described in the above question, how many extra cancers per year would be expected? Assume the standard 70-year lifetime. a. 0.163 b. 1.63x10-4 c. 1.63x10-3 d. 1.63x10-6 e. 6x10-2

4- Please I want answer sub-parts (c) and (d) with steps and clear typing or hand writing. Many thanks