I guess it is A and i think i m correct
ANSWER - 48.83%
Mg - 24.31
S - 32.07
O - 16x4 - 64
ADD ALL TOGETHER = 120.38
H - 1.01x2 - 2.02
O - 16
TOTAL = 18.02x7 = 126.14
ADD 120.38 to 126.14 = 246.52
last part divide MgSO4 by total compound mass
120.38/246.52 then multiply by 100 = 48.831
83.3 mL
Explanation:
M
= 3M
V
= 50mL
M
= 1.80M
Unknown:
V
= ?
Solution:
To solve this problem we must understand that the initial and final number of moles remains the same.
Number of moles = molarity x volume
Molarity x volume of initial solution = Molarity x volume of final solution
Therefore:
M
x V
= M
x V
M is the molarity
V is the volume
i = initial state
f = final state
input the parameters;
3 x 50 = 1.8 x V
V
= 83.3 mL
learn more:
Molarity brainly.com/question/9324116
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Which quantity can vary among Atoms of the same element mass number.
Mass number is the correct answer..