The number of moles present in 29.5 grams of argon is 0.74 mole.
The atomic mass of argon is given as;
Ar = 39.95 g/mole
The number of moles present in 29.5 grams of argon is calculated as follows;
39.95 g ------------------------------- 1 mole
29.5 g ------------------------------ ?

Thus, the number of moles present in 29.5 grams of argon is 0.74 mole.
<em>"Your question seems to be missing the correct symbol for the element" </em>
Argon = Ar
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That's cool man, you should study more... wheres the question though?
Uranium-238 is the element that undergoes decay to yield uranium-234
Answer:
a. P
b. Br
c. Ag
d. Na
Explanation:
The Periodic Table says so
1. put goggles on
2.but gloves on
3.put a lab coat on