Asample of c3h8 has 8.08 × 1024 h atoms.

how many carbon atoms does the sample contain?

what is the total mass of the sample?

of carbon in the sample.

73.7960 grams is the total mass of the sample.

Explanation:

Compound =

Total numbers of hydrogen atoms in a compound = atoms

In one molecule of compound there are 8 hydrogen atoms.

Then x number of molecules of compound having hydrogen atoms.

In one molecule of compound there are 3 carbon atoms.

Then of given compound will have :

of carbon

of carbon in the sample.

Moles of given compounds = n

n = 1.6771 moles

Mass of 1.6771 moles of given compound:

73.7960 grams is the total mass of the sample.

it takes on an electronical energy

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).