Diffusion is the movement of a solute from an area of its high concentration to an area of its low concentration – i.e. down a concentration gradient. This process is “passive” – i.e. it requires no energy; the gradient is enough to drive the process.
An atom is the smallest thing ever known to exist. It can only be seen by the eye of a type of telescope.
Answer:
No solution
Explanation:
36.9% w/w solution of butanoic acid in ethanol means 36.9 grams of butanoic acid per 100 grams of solution. The amount of butanoic acid in 120.0 g of the solution may be calculated:
(120.0 g solution)(36.9 g butanoic acid / 100 g solution) = 44.3 g butanoic acid.
There is not sufficient butanoic acid for the experiment.
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
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