阿摩線上測驗
登入
首頁
>
研究所、轉學考(插大)◆普通化學
>
113年 - 113 高雄醫學大學_學生轉系考試試題 : 普通化學#122192
> 試題詳解
12. Calculate the root mean square velocity of CH4 (g) molecule at 546K.
(A) 29.2 m/s
(B) 922.6 m/s
(C) 91.7 m/s
(D) 2.9 m/s
(E) 532.7 m/s
答案:
登入後查看
統計:
A(0), B(1), C(1), D(3), E(1) #3297731
詳解 (共 1 筆)
MoAI - 您的AI助手
B1 · 2025/10/17
#6910072
好的,讓我們針對這道題目進行詳細的分析和...
(共 1523 字,隱藏中)
前往觀看
0
0
其他試題
8. Calculate the molar concentration of perchloric acid in a solution that has a specific gravity of 1.67 and is 71% perchloric acid (w/w). (A) 18.1 M (B) 11.8 M (C) 22.6 M (D) 17.3 M (E) 14.0 M
#3297727
9. Consider the titration of 100.0 mL of 0.100 M C2H5NH2 () by 0.200 M HCl at 25.0℃. Calculate the pH of the resulting solution after the 25.0mL of 0.200 M HCl has been added. (A) pH=1.83 (B) pH=3.25 (C) pH=8.24 (D) pH=12.17 (E) pH=10.75
#3297728
10. A chemist needs a solution buffered at pH 5.0 and can choose from the following acids (and their sodium salts): Which system will work best? (A) propanoic acid (B) chloroacetic acid (C) benzoic acid (D) hypochlorous acid (E) salicylic acid
#3297729
11. In the Lewis structure for xenon dichloride, how many lone pairs of electrons are around the central xenon atom? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
#3297730
13. Calculate the pH of a 0.05 M NaCN solution. The pKa value for HCN is 9.2 . (A) pH=5.25 (B) pH=3.05 (C) pH=11.83 (D) pH=10.95 (E) pH=8.75
#3297732
14. A solution is prepared by mixing 100.0 mL of M magnesium nitrate and 200.0 mL of M sodium fluoride. Calculate the concentration of magnesium ion at equilibrium with solid magnesium fluoride . (A)M (B)M (C)M (D)M (E)M
#3297733
15. Which of the following sets of molecular structure are incorrect?I. selenium trioxide: T-shaped structureII. silicon tetrafluoride: tetrahedral structureIII. xenon tetrafluoride: tetrahedral structureIV. arsenic pentachloride: trigonal bipyramidal structureV. nitrite ion: V-shaped structure(A) III, V (B) II, III, V (C) I, II, III,V (D) I, III (E) I, IV, V
#3297734
16. A 1.37 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid. Citric acid has three acidic protons. (A) 0.056 (B) 0.0035 (C) 0.084 (D) 0.0093 (E) 0.028
#3297735
17. A 30.00-mL of a mixture that is 0.1500 M in hydrochloric acid and 0.0500 M in nitrous acid is titrated with 0.1000 M sodium hydroxide. Calculate the pH of the resulting solution after the 8.00 mL of 0.1000 M sodium hydroxide has been added. (A) 1.01 (B) 2.10 (C) 3.45 (D) 4.39 (E) 8.33
#3297736
18. What volume of 2.0 M sodium hydroxide must be added to 200.0 mL of 1.00 M glycolic acid to produce a buffer solution having a pH of 4.00? (pKa for glycolic acid is 3.83) (A) 67.6 mL (B) 148 mL (C) 59.7 mL (D) 78.6 mL (E) 83.3 mL
#3297737