3. An adult rhino is 1350 kilograms. What is its mass in micrograms? Please write your answer in correct Scientific Notation. Mi
1 answer:
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Answer:
D) 4.97M
Explanation:
firstly we will calculate the molar mass of K2HPO4.
K=39, H=1 , P=31, O=16
K2HPO4 = (39*2)+(1)+(31)+(16*4) =174g/mol
number of moles = mass / molar mass
mass of K2HPO4 =238g
number of moles = moles.
moles is contained in 275mL of solution.
The molarity of a solution is the number of moles of solute contained in 1000mL of solution.
if moles is contained i 275mL of solution
Then X will be contained in 1000 mL of solution
x=4.9739moles
x ≈ 4.97moles
4.97moles is contained in 1000mL of solution.
The molarity of the solution is 4.97M