Answer:
A hypothesis or a model is called falsifiable if it is possible to conceive of an experimental observation that disproves the idea in question.
Answer:
The answer to your question is X = 0.072
Explanation:
Data
X I₂ = ?
mass of I₂ = 55.6 g
mass of hexane = 245 g
Formula
X I₂ = (moles of Iodine) / (moles of iodine + moles of hexane)
Process
1.- Convert the mass of reactants to moles
atomic mass of I₂ = 2 x 127 = 254g
atomic mass of hexane = (12 x 6) + (14 x 1) = 86 g
254 g ---------------- 1 mol
55.6 g------------- x
x = (55.6 x 1)/254
x = 0.22 moles of I₂
86 g ------------- 1 mol
245 g ------------- x
x = (245 x 1)/86
x = 2.84 moles
2.- Calculate the mole fraction of I₂
X = 0.22 / (0.22 + 2.84)
X = 0.22 / 3.07
X = 0.072
Explanation:
1 gram of AGNO3 is 169,87 g/mol
2.5 mole = 2.5×16987
= 42467
<span>1.67 x 10^-3 moles
Calculate the molar mass of C9H8O4
Carbon = 12.0107
Hydrogen = 1.00794
Oxygen = 15.999
C9H8O4 = 9 * 12.0107 + 8 * 1.00794 + 4 * 15.999 = 180.1558
Now divide the mass you have by the molar mass
0.300 g / 180.1558 g/mole = 1.665225 x 10^-3
Round to 3 significant figures
1.67 x 10^-3</span>
Your answer would be C) of the scientists and ideas that came before him. he's saying that without them he wouldn't be where he is at now. he used there knowledge and became who he is today