What is the mole fraction of potassium hydroxide, KOH, in a solution prepared from 52 g of potassium hydroxide and 400.0 g of water? Report your answer using two significant figures. Use the periodic table below to answer the question that follows. The Periodic Table of Elements 2 1 Nonmetals Noble Gases H 1.008 Hydrogen 4 11 19 6.94 Lithium Na 22.990 Sodium Be 9.012 Beryllium 12 Mg 24.305 Magnesium 20 Ca 40.08 Calcium 21 Sc 44.956 Scandium Transition Metals Alkali Metals Alkaline Earth Metals Lanthanides Actinides 22 Ti 47.867 Titanium 23 V 50.942 Vanadium Post-Transition Metals Metalloids 40 Zr 91.224 Zirconium 88.906 Yttrium 57-71 72 K 39.098 Potassium 37 Rb 85.468 Rubidium 55 87 Cs 132.905 Cesium Fr 223.020 Francium 38 39 Sr 87.62 Strontium 56 88 Ba 137.328 Barium Ra 226.025 Radium Hf 178.49 Hafnium 89-103 104 Rf [261] Rutherfordium 41 Nb 92.906 Niobium 73 Ta 180.948 Tantalum 105 Db 24 Halogens Cr 51.996 Chromium 42 25 Mn 54.938 Manganese 43 TC Mo 95.95 Molybdenum Technetium 98.907 26 44 Fe 55.845 Iron Ru 101.07 Ruthenium 74 75 76 W Re 183.84 Tungsten 106 Sg 186.207 Rhenium 107 Bh 27 45 Co 58.933 Cobalt Rh 102.906 Rhodium 28 46 Ni 58.693 Nickel Pd 106.42 Palladium 77 78 Ir Os 192.217 Osmium 192.217 Iridium 108 Hs [262] Dubnium [266] Seaborgium [264] Bohrium [269] Hassium Pt 195.085 Platinum 29 47 79 Cu 63.546 Copper Ag 107.868 Silver Au 196.967 Gold 30 48 Zn 65.38 Zinc Cd 112.411 Cadmium 80 Hg 200.592 Mercury 5 13 B 10.811 Boron Al 26.982 Aluminum 31 49 81 Ga 69.723 Gallium In 114.818 Indium TI 204.383 Thallium 6 14 14 32 C 12.011 Carbon Si 28.086 Silicon Ge 72.631 Germanium 50 82 Sn 118.711 Tin Pb 7 15 N 14.007 Nitrogen P 30.974 Phosphorus 33 51 As 74.922 Arsenic Sb 121.760 Antimony 83 Bi 8 9 16 34 15.999 Oxygen 32.066 Sulfur Se 78.972 Selenium 52 Te 127.6 Tellurium 84 Po [208.982] Polonium 17 35 F 18.998 Fluorine Cl Chlorine Br 79.904 Bromine 53 85 126.904 lodine At 209.987 Astatine 10 18 36 54 He 4.003 Helium Ne 20.180 Neon Ar 39.948 Argon Kr 84.798 Krypton 86 Xe 131.294 Xenon Rn 222.018 Radon 207.2 Lead 208.980 Bismuth 109 110 111 112 113 114 115 116 117 118 Mt Ds Rg Cn Uut Fl Uup Lv Uus Uuo [268] [269] [272] [277] Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium unknown [289] Flerovium unknown [298] unknown unknown Ununpentium Livermorium Ununseptium Ununoctium 57 58 La 138.905 Lanthanum 89 Ac 227.028 Actinium 90 Ce 140.116 Cerium 59 60 Pr 140.908 Nd 144.242 61 62 Pm 144.913 Praseodymium Neodymium Promethium 63 91 92 93 94 95 Th Pa Np Pu Am Sm Eu 150.36 Samarium 151.964 Europium 64 65 Gd 157.25 Gadolinium 96 Cm 97 Tb 158.925 Terbium Bk 66 Dy 162.500 Dysprosium 98 164.930 Holmium 99 Cf Es 67 68 69 Ho Er 167.259 Erbium Tm 168.934 Thulium 100 101 102 70 Yb 173.055 Ytterbium 71 Lu 174.967 Lutetium 103 Fm Md No 232.038 Thorium 231.036 238.029 Protactinium Uranium 237.048 244.064 Neptunium Plutonium Americium 243.061 247.070 Curium 247.070 Berkelium 251.080 [254] Californium Einsteinium 257.095 258.1 259.101 Fermium Mendelevium Nobelium Lr [262] Lawrencium