Compared to a 1.0-mole sample of nacl(s), a 1.0-mole sample of nacl(l) has a different number of
(1) ions
(2) empirical formula
(3) gram-formula mass
(4)electrical conductivity

(4)electrical conductivity

Explanation:

Given : 1.0 mole of and 1.0 mole of

1 mole of and 1.0 mole of ,. both have ions.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Thus both and have same empirical formula.

Both   and have same atoms ad thus have same gram formula mass.

Electrolyte is a substance which dissociates into ions when dissolved in water and thus is able to conduct electric current through them. Compounds in solid form does not conduct electricity due to the absence of free ions.

Bus as solid compounds do not dissociate, would not produce ions and thus have no electrical conductivity. will have electrical conductivity due to presence of ions in molten form.

i dont know

explanation:

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).