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23) solution? E) 0.325 M D) 0.350 M ) 0250 M 24) aula, the standard naction...
22. What is the hybridization on carbon in C2H2? C) sp E) sp3d2 D) sp3d A) sp3B) sp2 23. What is the pH of a 1.0x 109 M solution of HCI? 24. What is the pH of a 0.1 M aqueous solution of NaOH? 25. Which compound will form an acidic solution when dissolved in water? F) Ba(CH3COO)2 E)Ca(NO3)2 D) Kl С) NaCl B) KNO2 A) NHcl 22. What is the hybridization on carbon in C2H2? C) sp E) sp3d2...
is 23 right? and can you answer 24/25 2 pts D Question 23 A 0.300 M solution of LiOH that contains 0.600 mole of solute would have a volume, in milliliters, of 30.0 mL O 2.00 x 10 ml 1.67 x 10mL 6.00 x 10 ml D Question 24 2 pts Which of the following solutions will have a molarity of greater than 1.0 after 50.0 mL of solvent is added to it? 40.0 mL of 2.0 M solution 175...
c) 12.44 M e) 35005 c) 5.31 a) 35.07 d: 3.97 e) 39.7 9. A solution has a pH of 4.67. What is the p H of the solution? a) 5.44 M b) 6.21 M 8.52 M d) 9.33M 10. Anti log of 1.545 is: b) 4.67 d; 350.07 11. What is the log of 9.333.45? a) 3.07 c) 3.73 O. SUSM 19 12. How many liters of SSSSCH12Os contain g of CHO? a) 0.01 b) 0.013 c) 0.019 d)...
d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value, what is the value for rate constant (in S-1) for the reaction? A) 2.0-104 s-1 B)9.6 x 10-4 s-1 C) 1.2 × 10-2 s-1 D)5.8 102s-1 12. In the first order reaction A → products, [A1-0.400 M initially and 0250 M after 15.0 mun, what willl after 175 min? e A) 1.67-10-3 M...
please show me how to get the correct answers in preperation for my upcoming exam 22.) E 23.) D 22) During volcanic eruptions, hydrogen sulfide gas is given off and oxidized by air according to the following chemical equation: 2H2S(g) + 302(g) - 2802(g) + 2H2O(g) Calculate the standard enthalpy change for the above reaction given: 3S(s) + 2H2O(g) → 2H2S(g) + SO2(g) AH° = 146.9 kJ/mol S(s) + O2(g) → SO2(g) AH°= -296.4 kJ/mol A) 443.3 kJ/mol B) 742.3...
02 d) HCIO e) HCHO, K. - 1.8 x 10- 23) A buffered solution is made of 1.0M acetic acid 0.10M solution of sodium acetate. What is the pH of the solution? For acetic acid pKa = 4.7 a) 3.7 b.) 4.2 c) 4.7 d) 5.7 e) 8.3
23-24-25 plus explanation plz e. 4 23. (z1-MC-11) Addition of Ca(NOs)2 (ag) to which solution produces a precipitate? a. NH C2H302 (aq) b. Pb(NO)2 (aq) c. NasPO4 (aq) d. K2S (aq) e. Nal (aq) 24. (Z1-MC-13) If excess magnesium is added to 100. mL of 0.500 M hydrochloric acid. how many moles of MgCl formed? Mg (s) + 2 HCl (aq)-. MgCl2 (aq) + H2 (g) a. 0.05 b. 0.025 c. 0.0025 d. 50 e. 25 25, (ZI-MC-14) when 0.50...
23) If 15.0 J of energy are added to 2.50 g of H2O(1) (C = 4.18 J/g °C) initially at 25.0 °C. What is the final temperature of the water? A) 26.4 °C B) 1.4 °C C) 23.6 °C D ) 25.0 °C 24) Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 24 AH°rxn = ? 2 NO(g) + O2(8) - 2 NO2(8) Given: N2(8) + O2(8) - 2 NO(g) 1/2 N2(8) + O2(8)...
How would I figure out this question? b) 2, 3, 6, c) 3, 2, 6, d) 2, 3, 12, e) 3, 3, 6,1 3. Given the following statement from the HAZMAT manual, calculate the quantity of heat, in kJ, absorbed by the solution. Assume that the density of the final solution is 1.00 g/mL and C= 4.18 gK A mixture of 50 mL of 1.0 M HCl with 50 mL of 1.0 M NaOH will result in a temperature rise...
explain 21,22,23 UTILIT In this solution is a. 2.6 x 10-1° M b. 3.8 x 10 M c. 9.58 d. 4.42 e. none of these 21. How many moles of pure NaOH must be used to prepare 1.0 L of a solution that has pH = 12.26? a. 8.2 x 10-16 mol b. 0.018 mol c. 5.5 x 10-13 mol d. 1.74 mol e. none of these 22. Calculate the pH of a 0.045 M HCl solution. K a. 1.23...