Vitamin b12, cyanocobalamin, is essential for human nutrition. it is concentrated in animal tissue but not in higher plants. although nutritional requirements for the vitamin are quite low, people who abstain completely from animal products may develop a deficiency anemia. cyanocobalamin is the form used in vitamin supplements. it contains 6.54% hydrogen by mass. calculate the molar mass of cyanocobalamin, assuming that there are eighty-eight atoms of hydrogen in every molecule of cyanocobalamin.

1356.33 g/mol

Explanation:

Number of hydrogen in 1 molecule of cyanocobalamin = 88

Molar mass of hydrogen = 1.008 g/mol

So, Mass of hydrogen in one mole of cyanocobalamin = 88*1.008 = 88.704 g

Also, Given that mass of hydrogen is  6.54 % Of the mass of cyanocobalamin.

Thus,

So, Applying values, we get:

Mass of 1 mole of cyanocobalamin = 1356.33 g

So, molar mass =  1356.33 g/mol

. west

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!