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This question has multiple parts. Work all the parts to get the most points. At 25°C,...
This question has multiple parts. Work all the parts to get the most points. a For the reaction H2(g) + Br2(g) → 2HBr(g) Kp = 3.6 x 104 at 1494 K. What is the value of K'p for the following reaction at 1494 K? HBr(g) → 1/2 H2(g) + / Br2(g) K'p = Submit
This question has multiple parts. Work all the parts to get the most points. At 25°C, K 0.090 for the reaction H, 0(g) + C,O(g) ? 2 HOCl(g) Calculate the concentrations of all species at equilibrium for each of the following cases. aL0g H0 and 2.0 g Cl,O are mixed in a 1.0-L flask. H2O] C20 [HOC?]- b 1.0 mole of pure HOCl is placed in a 20-L flask. [H20] = [C101 =
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This question has multiple parts. Work all the parts to get the most points. Calculate the solubility (in moles per liter) of Fe(OH)3 (Ksp = 4 x 10-58) in each of the following. a water Solubility = mol/L b a solution buffered at pH 6.0 mol/L Solubility C a solution buffered at pH = 10.0 Solubility = mol/L A 55.0-ml sample of 0.00150 M AgNO, is added to 55.0 ml. of 0.0300 M Nalog. What is the...
Raferences) This question has multiple parts. Work all the parts to get the most points. A buffer consists of 0.96-M propanoic acid (K-1.4 x 10) and 0.88-M sodium propanoate. a Calculate the pH of this buffer. pH-4.81 Correct b Calculate the pH after the addition of 2.1 mL of 0.10-M HCl to 0.010 L of the buffer pH-4.79 Correct c Calculate the pH after the addition of 8.8 mL of 1.0-M HCl to 0.010 L of the buffer. pH Submit...
This question has multiple parts. Work all the parts to get the most points. Consider the following reaction: CH() +20,(g) → CO.() +2H0(1) AH=-891 kJ a calculate the enthalpy change if 230 g methane is burned in excess oxygen Enthalpy change b Calculate the enthalpy change if 2.15 x 10 methane gas at 741 torr and 25°C is burned in excess oxygen. The density of CH() at these conditions is 0.640 Enthalpy change kJ
This question has multiple parts. Work all the parts to get the most points Calculate the degree of ionization or formic acid at the following concentrations: 0.0 100M, 0.0200M, and 00400M In order to calculate a, one can use a formula K,(formic acid) 1.8% 10.4 a(0 0100 M) a(0.0200 o(0.0400 M) ubmi
References This question has multiple parts. Work all the parts to get the most points. 1 pt 1 pt 1 pt 1 pt Consider the formation of NO(g) from its elements. N2(g) + O2(g) = 2 NO(g) Compound A;H* (kJ/mol S* (J/mol-K) N2(g) 191.56 O2(g) 205.07 NO(g) 90.29 210.76 A,G* (kJ/mol) 1 pt 1 pt 1 pt 1 pt a Calculate Ko at 25°C. K, at 25 °C = 4.4332x10^-31 1 pt 1 pt Correct 1 pt The standard enthalpy...
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This question has multiple parts. Work all the parts to get the most points. buffer consists of 0.96-M propanoic acid (K, -1.4 x 10 ) and 0.88-M sodium propanoate a Calculate the pH of this buffer. pH = 4.81 0 Correct b Calculate the pH after the addition of 2.1 mL of 0.10 M HCl to 0.010 L of the buffer. pH = 4.79 vô Correct C Calculate the pH after the addition of 8.8...
This question has multiple parts. Work all the parts to get the most points. Galactose has the following structure: н он HO H Но. CHO нН но Н H OH a How many chirality centers are present in this molecule? Chirality centers: 4 How many total stereoisomers does Galactose have? Stereoisomers: 16 Correct b Draw the structure of the enantiomer of Galactose. Use the wedge hash bond tools to indicate stereochemistry where it exists Oo0
This question has multiple parts. Work all the parts to get the most points. Assign the pka's -1.68 , 2.45, and 4.78 to the compounds shown below. CH3CH2COOH A: SOH B: NECCH,COOH C: Which of the compounds has the pka = -1.68 : ОА OB Ос Which of the compounds has the pKa = 2.45 : ОА OB Ос Which of the compounds has the pka = 4.78: OA OB Ос