Answer:
The atomic mass of element is 65.5 amu.
Explanation:
Given data:
Abundance of X-63 = 50.000%
Atomic mass of X-63 = 63.00 amu
Atomic mass of X-68 = 68.00 amu
Atomic mass of element = ?
Solution:
Abundance of X-68 = 100-50 = 50%
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (50×63)+(50×68) /100
Average atomic mass = 3150 + 3400 / 100
Average atomic mass = 6550 / 100
Average atomic mass = 65.5 amu.
The atomic mass of element is 65.5 amu.
Answer:
copper
Explanation:
it's on the periodic table of elements
The answer would be C!!!!!!!!!!!!!!!!!!
The speeds are
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 m/s.
Vavg = 15 + 16 + 17 + 18 + 19 + 20 +21 +22+ 23+24+ 25 / total molecules = 20 m/s
Vrms = ((sum of square of speed of molecules ) / total molecules )^1/2
Vrms = ( (15^2 + 16^2 + 17^2 + ....25^2) / 11 )^1/2
= (225+ 256 + 289 + 324 + 361+ 400 + 441 + 484 + 529 +576 +625 / 11)^1/2
= (4510 / 11 )^1/2 = 20.25 m /s
<span>the structure(s) of the product(s) you would expect when this ether is cleaved with hi can be Methyl propyl ether
O
/ \ /\
/ \ / \
H3C CH3
Methyl propyl ether</span>
