Answer:
Hence,
1) removed
2) drained through the stopcock
3) get eye level with
4) slow the draining
5) switch to a new flask
Explanation:
After mixing the solutions in a separatory funnel, the stopper should be removed and the liquid should be drained through the stopcock, and the layers allowed to separate. When you get close to the interface between the layers, get eye level with the funnel and turn over to slow the draining heat up until the first layer is collected. Switch to a new flask get eye level with it to collect the second layer.
Answer:
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Explanation: im smart
The Answer will be
A, B, and D
Not entirely sure though, comment if I'm wrong about this or delete this so no one else gets it wrong if it is
Answer:
- <u><em>Substance A.</em></u>
Explanation:
pH is a measure of the concentration of H₃O⁺ ions in a solution.
It is defined as:
![pH=\log \dfrac{1}{[H_3O^+]}=-\log [H_3O^+]](https://tex.z-dn.net/?f=pH%3D%5Clog%20%5Cdfrac%7B1%7D%7B%5BH_3O%5E%2B%5D%7D%3D-%5Clog%20%5BH_3O%5E%2B%5D)
For the given substances
Sustance [H₃O⁺] pH = - log [H₃O⁺]
M
A 4×10⁻⁶ -log (4×10⁻⁶) = 5.4 ← answer
B 6×10⁻⁷ -log (6×10⁻⁷) = 6.2
C error - - - - - -
D 1.3×10⁻¹ -log (1.3×10⁻¹) = 0.89
Thus, the unknown substace most likely is A.
Answer:
the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
Explanation:
