Molarity is defined as the ratio of number of moles to the volume of solution in litres.
The mathematical expression is given as:
Here, molarity is equal to 1.43 M and volume is equal to 785 mL.
Convert mL into L
As, 1 mL = 0.001 L
Thus, volume = = 0.785 L
Rearrange the formula of molarity in terms of number of moles:
n =
= 1.12255 mole
Now, Number of moles =
Molar mass of potassium hydroxide = 56.10 g/mol
1.12255 mole =
mass in g =
= 62.97 g
Hence, mass of = 62.97 g
Isotope- variation of an element
Sixteen- atomic number of oxygen
MgBr2 is the chemical formula for magnesium bromide
Answer:
c
Explanation:
use %composition given to calculate emperical 4mular
Answer:
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That's why they have the National Guard and thousands of people to keep the building secure during Biden's Inauguration.
hope this helps!