How many grams are in a mole of hydrogen chloride (hcl)? 1 h 1.01 hydrogen 17 cl 35.45 chlorine a. 1.5 grams/mole b. 35.45 grams/mole c. 36.46 grams/mole d. 72.92 grams/mole

The molecular mass is the sum of the atomic masses of the atoms.

Atomic mass :

H = 1.01 amu

Cl = 35.45 amu

HCl = 1.01 + 35.45

HCl = 36.46 grams/mole

Therefore:

1 mole of HCl is equivalent to 36.46 grams/ mole

answer C

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.