Fill in the blanks. 1 molecule of C_3H_8 has _______ carbon atoms and weighs ___
ID: 530008 • Letter: F
Question
Fill in the blanks. 1 molecule of C_3H_8 has _______ carbon atoms and weighs _______. 17.0 g of NH_3 has 6.22 times 10^23 _______ of ammonia and _______ moles of hydrogen _______ Iodine has one naturally occurring isotope. One atom of iodine has _______ protons and _______ One uranium (IV) ion has _______ electrons and _______ protons. Calculate each of the following and express to the correct number of significant figures. 4.507 times 10^4/0.00310 = _______ 26.11 + 94.5 + 2.00 = _______ (0.011)^2 = _______ Isotopes are atoms of a given element having the same _______ number but a different _______ Name: an inner transition element _______ and a halogen _______.Explanation / Answer
one moleule of C3H8 has 3 carbon atoms and weighs =44/6.022x1023 = 7.30x10-23g
17.0g of ammonia has 6.02x1023 molecules of ammonia and 3 moles of hydrogen atoms.
Iodine (natural isotope) has 53 protons and 74 neutrons (I127 is the stable naturally occuring isotope).
one uranium IV ion has 88electrons and 92 protons.
1) 139.7
2)122.6
3)0.000121 = 1.21x10-4
Isotopes are atoms ofa given element with same atomic number but a different mass number
or isotopes of given element have the same sumber of protons and electrons but different neutrons.
An inner tranisition element is cerium
a halogen is chlorine
3)
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