Barrons SAT Subject Test Chemistry, 13th Edition

52. (D) CH 2 = 14 (12 + 2 = 14 molecular mass) 56 ÷ 14 = 4 Then 4 × CH 2 = C 4 H 8 ...

(C) Only insoluble gases can be collected in this way. ...

(C) HCl is very soluble in water and denser than air, so it is suited to the No. 2 collection method. ...

55. (D) ...

(D) Gram-molecular mass of H 2 is 2 g. 4 g is 2 mol, and each mole occupies 22.4 L. 2 × 22.4 = 44.8 L. ...

57. (D) Then x = 4.0 mol. ...

58. (C) Then x = 44.8 L. ...

59. (C) or Then x = 44.8 L. ...

(D) 5.00 g ice to water = 5.00 × 80 cal = 400 cal. 1 g at 4° can go to 100°C as water and absorb 1 cal/°C. Then 400 cal − (100° ...

(A) Since Ag+ gains 1e− to become Ag^0 , 0.5 mol requires 0.5 mol of electrons. ...

(E) CO 2 is a reactant in photosynthesis, not a product. The reaction is or ...

63. (D) Let x = moles of H 2 and also of I 2 that combine to form HI. Then at equilibrium [H 2 ] = 3 − x, [I 2 ] = 3 − x, [HI] = ...

(D) In a closed system, decreasing the size of the container will cause the pressure to increase. When pressure is applied to a ...

(A) This is Rutherford’s famous artificial transmutation experiment, done in ...

66. (B) ...

(E) Percent is by mass, so 10.% is 0.10 × 1,000. g or 100. g. ...

(D) Since colligative properties, like freezing point, are related to the concentration of the solute particles and since the d ...

(C) The nuclear reactions shown release: (A) a neutron, (B) an alpha particle, (C) a beta particle, (D) no particles, (E) a pos ...

Appendixes MODERN PERIODIC TABLE ...

SOME IMPORTANT EQUATIONS Density (d) Percent Error Percent error Percent Yield Percent yield Percentage Composition Percentage c ...