Asked by pleasehelpme
Sulfur trioxide reacts with water to form sulfuric acid according to the
following reaction: SO3 + H2O
H2SO4
Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one
molecule of sulfuric acid has a mass a of 98 amu, what is the atomic mass of sulfur trioxide?
-116 amu
-80 amu
-48 amu
-32 amu
following reaction: SO3 + H2O
H2SO4
Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one
molecule of sulfuric acid has a mass a of 98 amu, what is the atomic mass of sulfur trioxide?
-116 amu
-80 amu
-48 amu
-32 amu
Answers
Answered by
oobleck
H2SO4 has mass 2*1 + 1S + 4*16 = 98
so S = 98-64-2 = 32
SO3 has mass 32+3*16 = 80
or,
SO3 = H2SO4 - (H2O) = 98 - (2+16) = 80
so S = 98-64-2 = 32
SO3 has mass 32+3*16 = 80
or,
SO3 = H2SO4 - (H2O) = 98 - (2+16) = 80
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