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Question 1 What is the coordination number of chromium in the following coordination compound (Cr(C204)2(H20)2]C12? (C2042-oxalate...
1. Consider the coordination compound [Cr Cl(H20)4]C1.2H O. (i) What is the complex in the coordination compound and what is the charge in the complex ion? (ii) Identify the ligand(s) in the complex ion. 2. Calculate the number of moles of oxalate ion in 5.0 mL of 1.0 M H2C204 e oxidation number and coordination number of chromium
QUESTION 15 The oxidation number of chromium in sodium chromite, KCrO2, is O a.–2. ob.+1. Oc+3. Od. +2. e. 1. QUESTION 16 Which of the following is a weak acid in aqueous solution? a. HBr b. HI oc HNO 2 d. HCIO 4 e. H2SO4
What is the coordination number for each of the following complexes or compounds? [Co(NH3)4Cl2]+ [Ca(EDTA)]2− [Pt(NH3)4]2+ Na[Ag(CN)2] Enter the coordination numbers, in the order that the complexes are listed, as four integers separated by commas (e.g., 1,2,3,4). What is the charge on each of the following complex ions? hexaaquairon(II), [Fe(H2O)6]? tris(carbonato)aluminate(III), [Al(CO3)3]? amminepentachloroplatinate(IV), [Pt(NH3)Cl5]? Express the charges numerically, in the order that the complexes are listed, separated by commas. For a nonzero charge, be sure to include the sign (e.g.,...
Question 51 (8 points) A 10 gram sample of which substance contains the greatest number of hydrogen atoms? 10 grams of CH4 10 grams of HCI 10 grams of PH 3 10 grams of H2 Question 52 (8 points) What is the oxidation number of nitrogen in the nitrate ion? :0: +6 +5 O-1 +1 Question 49 (8 points) Which set of quantum numbers is correct and consistent with n = 4? me = -3 ms = +1 me =...
QUESTION 18 Refer to equation number 9. What is the value of A? A.2 OB.+1 OC.-1 OD. QUESTION 19 Refer to equation number 10. What is the value of Z? A.1 B.2 0.4 D.O QUESTION 20 1 pc Refer to equation number 10. What is the value of A? A.1 B.4 C.D.2 E 4 MC Questions 1 - 10 1. 18Ne → 1%F + 2x + v 2. Ca -- Sc + 4x +v 3. Cu - Cu + 2x...
please assist with 1-2-3 QUESTION 1 Refer to equation number 1. What is the value of Z? OA. OB.4 OC.1 OD.2 QUESTION 2 Refer to equation number 1. What is the value of A A. +1 OB.-1 oC.O OD.2 QUESTION 3 Refer to equation number 2. What is the value of Z? OAO B., C. 2 D. 4 QUESTION 13 Refer to equation number 7. What is the value of Z? A.4 OB.2 0.2 OD.O QUESTION 14 Refer to equation...
please answer the full thing 1. What would be the AE (in kJ) for the following reaction if 6.300 moles of H20 were decomposed? 2 H2O + 2H2 + O AE = 483.6 kJ (for reaction as written) 2. The value of AE for the reaction below is -336 kJ. Determine the amount of heat (in kJ) evolved when 13.0 g of HCl is formed. CH4(9) + 3 Cl2(g) - CHCI) + 3HCIO) 3. If 1.00 cal = 4.18 J,...
Question 9 What is the IUPAC name of the following compound? NH2 a. (E)-6-amino-2-hexene b. (Z)-1-amino-2-hexene O c. 3-allyl 1-aminopropane d. (E)-1-amino-4-hexene
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...