Monster Black Hole With Mass of 40,000,000,000 Suns

In a polymer sample, 30% of molecules have a molecualr mass of 20,000, 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer?

Calaulate the average molecules mass of a polymer sample in which 30% molecules have a molecular mass of 20,000,40% have 30,000 ,and the rest 30% have 60,000

Express the numbers appearing in the following statements in the standard form: The distance between the earth and the moon is 384,000,000 metres. Diameter of the earth is 1, 27 , 56 , 000 metres. Diameter of the sun is 1,400,000,000 metres. The universe is estimated to be about 12,000,000,000 years old.

The distance between the sun and the earth is 1,49,500,000,000 m. How will you express it in powers of ten?

A polymeric sample in which 30% molecules have a molecules mass 20,000 ,40%, have 30,000 and the rest 30% have 60,000 .The (Mbar(n)) and(Mbar(w)) of this sample was:

If a woman has a mass of 45,000,000 mg, what is her mass in grams and kilograms?

Express the number appearing in the following statements in standard form. (a) The distance between Earth and Moon is 384,000,000 m. (b) Speed of light in vacuum is 300,000,000 m/s. (c) Diameter of the Earth is 1,27,56,000 m. (d) Diameter of the Sun is 1,400,000,000 m. (e) In a galaxy there are on an average 100,000,000,000 stars. (f) The universe is estimated to be about 12,000,000,000 years old. (g) The distance of the Sun from the centre of the Milky Way Galaxy is estimated to be 300,000,000,000,000,000,000 m. (h) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm. (i) The earth has 1,353,000,000 cubic km of sea water. (j) The population of India was about 1,027,000,000 in March, 2001.

The polymer contains 30% molecules of molar mass 20,000, 40% molecules of molar mass 30,000 and rest of the molecules have molecular mass of 60,000 then PDI of the polymer