{L-14 8. What is the molar coefficient for the sample? a) 1.4 b)7.41 c)14 d) 1.9 0) 0.9 1) None of the above 9. In beer'
Posted: Sun May 22, 2022 5:34 pm
- L 14 8 What Is The Molar Coefficient For The Sample A 1 4 B 7 41 C 14 D 1 9 0 0 9 1 None Of The Above 9 In Beer 1 (113.41 KiB) Viewed 11 times
{L-14 8. What is the molar coefficient for the sample? a) 1.4 b)7.41 c)14 d) 1.9 0) 0.9 1) None of the above 9. In beer's law, the curve can be used for the determination of concentration of unknown sample by measuring the absorbance a) at same wavelength only. b) at same path length only c) at same wavelength and path length d) cannot be determined 10. Mole coefficient is measured in Es a)cm b)M M'cm c) d) L mol-'cm' e) None of the above 11. Equivalence point in weak acid-strong base has - pH a) 7 b)8.7 c)5.3 d)9.5 12..----- is used as an reagent in the acid-base titration experiment a a) NaOH b)HCL c) H2SO4 d) EDTA Bergea 13. Phenolphthalein indictor has a a) Pink b)Yellow --- color in the H2SO4 solution c)Colorless d)Red 14. Alkalinity of water is an indication of a) Base neutralizing capacity b)Acid neutralizing capacity c) Quantity of base present d) Quality of base present 15. The phenolphthalein alkalinity is present than the pH of water will be more than a) 8.3 b)9.3 c) 7.3 d)6.3 16. The cation that cannot cause hardness is a) Ca b)Mg c)Fe d) H 17. Which of the following compounds can cause temporary hardness in water a) magnesium and calcium carbonates b) magnesium and calcium bicarbonates c) magnesium and calcium chlorides d) magnesium and calcium hydrogen sulphates Doil Carbo 3