Interpretation:
The information contained in the statement that is consistent with the chemical equation
Concept Introduction:
The coefficients that are present in a balanced chemical equation is like subscripts in the chemical formula. These coefficients can be interpreted in two levels. One is a microscopic level and another is macroscopic level.
Microscopic level:
The coefficients that are present in a balanced chemical equation gives numerical relationship between the formula units consumed or produced when a
Macroscopic level:
In a balanced chemical equation, the coefficients gives information about the fixed molar ratios among the substance that is consumed or produced when a chemical reaction takes place.
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Chapter 6 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Identify the Lewis acid in the following reaction: A. BF3 B. F C. BF4 D. None of these is an acid. B OD O A O Carrow_forwardCao (s) (calcium oxide) is the main ingredient of concrete. While mixing Cao with water, the mixture gets hotter rapidly by its own. The chemical equation of the reaction is given below. Cao (s) + H20 (liq) > Ca(OH)2 (s) Based on the above information, which of the following is correct for the above process to mix Cao (s) with water. O a. AH> 0, AS> 0, AG0, AG 0 , ΔS> 0 , ΔG>0 O e. AH0, AG>0 O f. AH 0arrow_forwardThe conversion of glucose-1-phosphate to glucose-6-phosphate by the enzyme phosphoglucomutase has a △G°' of -7.6 kJ/mol. Calculate the equilibrium constant for this reaction at 298 K and a pH of 7. (R = 8.315 J/K-mol) A. 0.003 B. 0.047 C. 1.00 D. 21arrow_forward
- Which of the following correctly explains why the vapor pressure of water has to be included in the calculations? Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas. As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above. The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor. The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry gas. Overview of the experiment:arrow_forwardWhat coefficients must be placed in the following blanks sothat all atoms are accounted for in the products?C6H12O6 S _________ C2H6O + _________ CO2(A) 2; 1(B) 3; 1(C) 1; 3(D) 2; 2arrow_forwardDefine the following terms:a. allyl groupb. epoxidec. SAM d. PAPSe. phase I reactionarrow_forward
- 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_forwardGiven the following electrode reactions: 2+ Co +e + Co E=1,92 V 3+ Co(NH,), + e + Co(NH,), E=0,06 a. Is it possible to use an iron wire for the determination of ammonia? How would you do it if it were possible? b. What order would the electrode be, relative to ammonia? c. If the answer is yes, derive the Nernst equation for the electrode. If the answer is negative, explain why.arrow_forwardA reaction has the following AG values: -32.7 kJ/mol at 25°C, -40.3 at 35°C. If the reaction has same AH and AS at different temperatures: 2. What is the enthalpy of the reaction, AH"? A -194 kJ/mol B. -208 kJ/mol C. 194 kJ/mol 3. What is the entropy of the reaction, AS"? A. 760 J/mol K B. 860 J/mol-K stion Page 1 of 6 Previous C.-760 J/mol K Next han D. 208 kJ/mol D. -860 J/mol Karrow_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_forwardFor the following reaction at equilibrium NH3 + H20 + NH4+1 + Он-1 NH3 is the It is not a hydroxide and so is a base. H20 is the It is both a very acid and a very base. NH4*1 is the It is not on the list of strong acids and so is a acid. OH-1 is the . It is a base because it contains hydroxide. а. acid b. base c. conjugate acid d. conjugate base e. strong f. moderately strong or weak g. weakarrow_forwardConsider the following reaction at 25°C with the ΔG°’ = +1800 J/mol for the forward reaction.The molar concentrations at the beginning of the reaction were [A] = 19 mM and [B] = 10 mM.After 1 hour, the concentrations were [A] = 16 mM and [B] = 13 mM. Calculate the ΔG of the reaction at the 1 hour timepoint. Please round to 1 decimal point.Gas constant = 8.315 J/mol Karrow_forward
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