Determine the percent composition of NaCl. 77.34 percent sodium and 22.66 percent chlorine 60.66 percent sodium and 39.34 percent chlorine 39.34 percent sodium and 60.66 percent chlorine 77.34 percent sodium and 22.66 percent chlorine 12.66 percent sodium and 87.34 percent chlorine 22.66 percent sodium and 77.34 percent chlorine