31) 31) How many moles of fructose are in a sample containing 1.43 x 1024 molecules of fructose? A) 8.61 x 1047 mol B) 0.420 mol C) 2.37 mol D) 1.16 x 10-48 mol E) 2.38 ~ 10-1 mol 32) Which of the following contains the FEWEST atoms? You shouldn't need to do a calculation here. A) 4.0 g Ca B) 4.0 g Rb C) 4.0 g K D) 4.0 g Li E) 4.0 g Na 32) 33) x 33) If 8.32 g of copper is mixed with 5.2372 x 10-2 mol of zinc to create the alloy brass, how many metal atoms total are present in the brass? A) 7.88 x 1022 metal atoms B) 3.15 x 1022 metal atoms C) 3.15 x 10-22 metal atoms D) 3.04 x 10-25 metal atoms E) 1.10 x 1023 metal atoms 34) What mass (in kg) does 5.84 moles of titanium (T) have? A) 0.820 kg B) 0.632 kg C) 0.122 kg D) 0.352 kg E) 0.280 kg 34) 35) 36) 35) Calculate the mass (in kg) of 4.87 x 1025 atoms of Zn. A) 1.24 kg B) 1.89 kg C) 1.09 kg D) 8.09 kg E) 5.29 kg 36) When forming the nitride ion, nitrogen, N, will electron(s). A) gain one B) gain two C) gain three D) lose one E) lose two 37) Rubidium, a metal with 37 electrons, tends to lose one, forming a 1+cation that has the same number of electrons as A) Krypton B) Argon C) Helium D) Xenon E) Neon 37) 38) 38) Calcium, a metal with 20 electrons, tends to lose two, forming a 2+cation that has the same number of electrons as A) Argon B) Neon C) Xenon D) Helium E) Krypton