Answers and explanation for 40 through 48?

40 Solid aluminum has a specific heat capacity of 45 Given the formula for a compound: 0.90 J/g.K. How many joules of heat are absorbed to raise the temperature of 24.0 grams of H aluminum from 300. K to 350. KP H-C-H (1) 22] (3) 1100 J (2) 45 J (4) 1200 J HHH HH H-C-C-C-C-C-C-H 41 Based on Table G, which solute sample in HH HH H 100.g of water at 40. C can produce a solution H-C-H equilibrium in a closed system? (1) 10. g KCIO 3 (3) 45 g KCI H (2) 25 g NaCl (4) 55 g KNO3 What is the IUPAC name of the compound? 42 Given the equation representing a system at (1) 2,3-dimethyloctane equilibrium: (2) 2,3-dimethylhexane (3) 4,5-dimethyloctane 280,(g) + 02(g) = 2503(g) + energy (4) 4,5-dimethylhexane Which change favors the forward reaction? (1) increasing the concentration of Oz(g) 46 Given the formula representing a compound: (2) increasing the temperature H (3) decreasing the pressure o H (4) decreasing the concentration of SO,(g) H-C-C-N H H 43 When ice, H,O(s), melts at 0 C, entropy increases because the This compound is classified as an (1) average kinetic energy of the particles increases (1) amide (3) ester 2) average kinetic energy of the particles (2) amine (4) ether decreases (3) particle arrangement is more random 47 Which substance is an electrolyte? (4) particle arrangement is less random (1) H2 (3) C6H 14 (2) HCI (4) CGH 1206 44 At STP, propanal and propanone have different chemical properties due to their different 48 An indicator is added to an aqueous solution with (1) molecular masses a pH value of 5.6. Which indicator is paired with (2) empirical formulas its observed color in this solution? (3) percent compositions (1) Methyl orange is yellow. (4) functional groups (2) Phenolphthalein is pink. (3) Bromcresol green is yellow. (4) Thymol blue is blue. P.S. Chem.-June '22 [6]