The number of moles in monochloro pentaborane (9) 
is 0.37056.
We know that ,
Number of moles = Given mass/ Molar mass
Given mass of monochloro pentaborane (9) is 20.1 g
The molar mass of monochloro pentaborane (9) is
= 
= 
= 54.241
Thus number of moles = 20.1/54.241
= 0.37056
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Answer: 10.5 hope this helps!
Answer:
D 12
Explanation:
Assume that you have one formula unit of Na₂H₃IO₆. Then, you have
2 atoms Na
3 atoms H
1 atom I
<u>6 atoms</u> <u>O</u>
12 atoms TOTAL
Dihydrogen monoxide is the chemical name of water because there are two hydrogen molecules and one oxygen molecule
Answer:
The specific gravity of the rock with respect to water is equal to 3
Explanation:
To solve the question, we list out the variables as follows
Mass of rock = 6 grams
Mass of equal volume of water = 2 grams
Specific gravity or relative density is the mass of a unit volume of a substance divided by the mass of an equal volume of a reference material.
Specific gravity = (mass of substance)/(mass of equal volume of water)
Therefore the specific of the rock sample is = (mass of cube of rock sample)/(mass of same-sized cube of water)
= (6 grams)/(2 grams) = 3
The specific gravity of the rock = 3
