<h2><u>
Properties of Water Essential to Life</u></h2>
<u></u>
- Water is known to be the universal solvent because of <u>its ability to dissolve more particles</u> than any other liquid.
- Cohesion is the <u>property of water to attract other molecules</u>. This helps in making solutions that are essential for most life to propagate.
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Question or gibberish because i cannot read a thing u wrote
Answer:
it depends on mass and speed
Answer:
i. n = 5
ii. ΔE = 7.61 × KJ/mole
Explanation:
1. ΔE = (1/λ) = -2.178 × ( - )
(1/434 × ) = -2.178 × ()
⇒ 434 × = (1/-2.178 × )
But, = 2
434 × = (1/2.178 × )
434 × × 2.178 × =
⇒ = 5
Therefore, the initial energy level where transition occurred is from 5.
2. ΔE = hf
= (hc) ÷ λ
= (6.626 × 10−34 × 3.0 × ) ÷ (434 × )
= (1.9878 × ) ÷ (434 × )
= 4.58 × J
= 4.58 × KJ
But 1 mole = 6.02×, then;
energy in KJ/mole = (4.58 × KJ) ÷ (6.02×)
= 7.61 × KJ/mole
A toxicity is answer for that question