Concept explainers
Interpretation:
Among the given options, the chemical formulas for a compound that contains
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions: Ionic compounds containing positive and negative charges present and those must add to get resultant charges as zero. If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclosed in parentheses and a subscript, placed outside of the parenthesis.
Example-
Sometimes same element is present in two different locations. For example,
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Chapter 4 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Consider a solution which is 0.10 M in CH3COOH and 0.20 M in NaCH3coo. Which of the following statements is TRUE? A. If a small amount of NaOH is added, the pH decreases very slightly. B. If NaOH is added, the OH- ions react with the CH3CO0 ions. C. If a small amount of HCl is added, the pH decreases very slightly. D. If HCI is added, the H* ions react with CH3COOH ions. E. If more CH3COOH is added, the pH increases.arrow_forwardDefine the following terms:a. allyl groupb. epoxidec. SAM d. PAPSe. phase I reactionarrow_forwardCompound X has the above properties. Compound X is a. C2H5OH b. C2H5Cl c. C2H5COOCH3 d. C2H6arrow_forward
- Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na. pKa(NH2CH2CO2H)=9.88. a. Calculate its pH. b. Calculate the change in pH if 0.155 g of solid NaOH is added to 250 mL of this solution. c. If the acceptable buffer range of the solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer.arrow_forwardWrite equations showing how each weak base ionizes water to form OH-. Also write the corresponding expression for Kb.a. CO3 2- b. C6H5NH2 c. C2H5NH2arrow_forwardA mixture containing glutamic acid, arginine, phenylalanine and valine was subjected to anion exchange chromatography at pH 7.0. Which of the amino acids interacted with the resin (anion exchanger) and last to be eluted with a buffer of decreasing pH? A. Glu B. Val C. Phe D. Argarrow_forward
- Define the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelinarrow_forwardAnswer the following about drawing the attractive force between a water molecule (H2O) and an ammonium ion (NH4*). The on the O in the water molecule is attracted to the of the ammonium ion. a. partial + charge b. partial - charge c. full + charge d. full - chargearrow_forwardif you had an HCO3- concentration of 20 mEq/L and a pH of 7.0 you would have -------- ? A. respiratory acidosis b. respiratory alkalosis c. metabolic alkalosis d. metabolic acidosisarrow_forward
- The Bohr effect refers to: a. the decrease in affinity of Hb for O2 when the pH goes down b. the decrease in affinity of Hb for O2 when the pH goes up c. the increase in the affinity of Hb for O2 when the O2 concentration goes up d. the decrease in affinity of Hb for O2 when the BPG concentration goes up e. the decrease in affinity of Hb for O2 when the BPG concentration goes downarrow_forwardThe particles resist collision due to the high zeta potential in a suspension containing negatively charged particles. The addition of an oppositely charged electrolyte into that suspension leads to O A. increased collision resist by the particles O B. gradual reduction in the zeta potential O C. no change in the zeta potential O D. higher zeta potential In which of the following form the insoluble chloramphenicol palmitate is used to reduce the bitter taste of the chloramphenicol base? O A. Powder O B. Spray OC. Suspension O D. Solution ype here to search LIFE Digital DIarrow_forwardAt 39.9ºC, a solution of ethanol (XetOH = 0.9006, P * etOH = 130.4 Torr) and isooctane (P * iso = 43.9 Torr) forms a vapor phase with YetOH = 0.6667. The total pressure is 185.9 a. Calculate the activity and the activity coefficient of each component.b. Calculate the total pressure the solution would have if it were ideal.c. Comparing the ideal pressure to the actual pressure, what does this indicate about the molecular interactions?arrow_forward