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(4) zinc
Explanation:
Given parameters:
Mass of the sample = 10g
Condition = STP
Unknown:
Element with the least volume = ?
Solution:
The number of moles of substance as STP can be derived using the equation below;
Volume of substance = number of moles x 22.4
Number of moles =
since mass = 10g
Number of moles of Al = = 0.37mole
Number of moles of Ti = = 0.29mole
number of moles of Mg = = 0.47mole
Number of moles of Zn = = 0.15mole
Zinc has the least number moles and it will have the lowest volume at STP because the volume directly proportional to number of moles.
learn more:
Number of moles brainly.com/question/1841136
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