請問要怎麼平衡氧化數🥹

台灣綜合歐鋼允來去 ABO2 氧化還原反應:CuP+HiNO3 → Cu(NO3)2+H+PO + NO+HO(係數未平衡),下列 12. 4 敘述哪些正確? M (A)每莫耳的 Cu,P 共失去 11 莫耳電子 (B)每莫耳的 HNO, 共得到3 莫耳電子 (C)作為氧化劑之 HNO, 莫耳數約占所有 HNO, 的 38% (D) CuP 中,Cu 的氧化數為+2 (E)此反應的係數總和為60 置票量小寶(HOT) HOHOOD HD 清水祖,是會出濃香水(A) Handso

11.救一下感恩

(A) [OH]> [H] (B) [H] > [OH ] (C) the water is no longer neutral (D) none of these is correct. 11. A 100.0-mL sample of 0.2 M (CH3)3N (Kb = 5.3 x 105) is titrated with 0.2 M HCI. What is the pH at the equivalence point? (A) 5.4 (B)7.0 (C) 10.3 (D) 3.1 (E) 9.9 17 You have a solution of 0 10 MC5 and 0.10 M Cr0.² You add 0 10 M silver nitrate dropwise into

請問第9題濃度換算⋯不懂為何答案差這麼多

the molality? (A) 0.1775m H₂SO 7.75 198⁰ mol (D)1.940m H₂SO4⋅ CM = =1.9435m (100x1.1094-1775) X103³kg 9. A typical commercial-grade acetic acid is 36% CH3COOH by mass and density (A 1.05g/mL. Calculate the molarity (mol/L) of the CH3COOH. (A)6.3M (B)12M (C)17M (D) 18M. 36/60 c.nl M (103台大C) 100X105X10-3 cha y 201 iter (C)mole fraction (D) (E

第四題在講什麼😅

(A) 5.79 (B) 8.21 (C) 8.87 (D) 5.13 (E) 9.23 4. Compounds X and Y have the same mass, but compound Y has two more atoms in its structure. Which statements must be true? (A) C, for compound X is greater than C, for Y (B) C, for compound X is less than C, for Y (C) Cp for compound X is greater than Cp for Y (D) Cp for compound X is less than Cp for Y (E) B and D 5. Which of the following gases is/are present in the fuel obtained after coal gasification?

請問第50題AC選項的意思～？🙏

700 0.00142 1.30 0.26 ~ Ea = 40.00011 *8. 133.7kJ/mole backward B 50. For a reaction for which the activation energies of the forward and reverse directions are equal in value. (A)The stoichiometry is the mechanism (B) (C) AS = 0 (D)the order is zero. Dan-0 (台大甲)

第二張是解答，問最後一個步驟，怎麼看？

7-72 Reaction of 2,3-dimethyl-1-butene with HBr leads to an alkyl bromide, addin C6H13Br. On treatment of this alkyl bromide with KOH in methanol, form a elimination of HBr occurs and a hydrocarbon that is isomeric with the ber starting alkene is formed. What is the structure of this hydrocarbon, -mote and how do you think it is formed from the alkyl bromide? qedo eidt al .equory Janoitonut Tojem ent to noitqirozeb aus s eaupaib Il'ow aquo Ismoitonul red in related

題目跟解答在講什麼😅

7-65 tert-Butyl esters [RCO₂C(CH3)3] are converted into carboxylic acids (RCO₂H) by reaction with trifluoroacetic acid, a reaction useful in pro- tein synthesis (Section 26-7). Assign E,Z designation to the double bonds of both reactant and product in the following scheme, and explain why there is an apparent change in double-bond stereochemistry: H C-OCH3 C-OCH3 CF3CO2H C=C + H2C=C(CH3)2 H3C C-OC(CH3)3 C-OH 0- H3C

第三題怎麼算ㄒ⋯⋯ㄒ

- 3. Calculate the pH of 0.10 M NH4CN. (Kb for NH3 = 1.8 x 105; K₂ for HCN = 6.2 × 10-¹0) (A) 5.79 (B) 8.21 (C) 8.87 (D) 5.13 (E) 9.23 4. Compounds X and Y have the same mass, but compound Y has two more atoms in its structure. Which statements must be true? (A) C, for compound X is greater than C, for Y (B) C, for compound X is less than C, for Y (C) Cp for

請問58（1） 為什麼不用考慮B的濃度級數呢？ 單純是因為無法看出來嗎？ 謝謝🥹

58. At el 10 g →CE) 2.96 0.0050 0.010 0.020 temperature, reactant A reacts according to the chemical equation: sk= A(g) +B(2) ► At 500 °C, the rate of the reaction increases with concentration of A as follows: =310 [A](M) Rate(M/s) = 152 1.2x10-2 (1) Determine the order of the reaction and write the rate expression. R=k [A] (2) Calculate the rate constant, and give its units k= = 1,24 104 (5!M² (3) Calculate the rate for a 0.0020 M concentration of A. R = 1,27104 台大) vust Rk) (1) R = K[A] ; (2) k = 12000M-s-+; (3) R =9.6x10-M/s -9.6x10.5 ($3$ (= s ON SX102 1.5x10-3 9.6x10-2 12x10 (0.01) R = 1,28104 (0.002 y 1014 +B) ( M) -2 -1 =

甲烷跟甲醇的生成熱是要查表還是要自己算出來？ 因為老師給的表裡沒有這兩個生成熱

(b) Calculate AH, and AU, at 298.15 K for the following reactions: R - (1) CH4(g) + H2O(g) → CO(g) + 3H2(g) CH3OH(g) + CO(g) → CH3COOH(1) ( (2)