Kylie has two glasses with equal volumes of pure water. she adds 40 g of sugar to one of the glasses of water and 40 g of salt to the other. when sugar is dissolved in water, it does not change the number of ions present. when salt is dissolved in water, however, the number of ions significantly increases.
which of the following is true about the electrical conductivity of kylie's two solutions?
a)the solution of sugar water will have a higher conductivity than the solution of salt water.
b) pure water will have a higher conductivity than both the sugar water and the salt water.
c) the solution of salt water will have a higher conductivity than the solution of sugar water.
d) the solution of salt water and the solution of sugar water will have the exact same conductivity.

When salt (NaCl) is dissolved in water it forms cations of and which are electrolytic ions. This occurs because the NaCl  is a strong electrolyte in nature as it can get easily dissociated into its ions. Also, solutions of strong electrolytes are observed to be good  conductors of electricity  as they contain a comparatively high  concentration of ions.

But in case of sugar, it is a non-electrolyte, which means it does not produces ions when  dissolved in water. As the solution of sugar contains molecules of sucrose,  but does not gets dissociated into ions. This absence of ions in a sugar aqueous solution makes it  a non electrolytic in nature.

The solution of salt water will have a higher conductivity than the solution of sugar water.

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).