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3 years ago

13

250 संतरे में से 50 संतरे एक कक्षा में बाँट दिए गए, तो कितने प्रतिशत संतरे बचे 1. 80%2.25%

1 answer:

vagabundo [1.1K]3 years ago

8 0

Answer:

80% left thanks hope ur day will fine

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This answer please :))

r-ruslan [8.4K]

Answer: ya this one

Explanation: this is the one

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3 years ago

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The answer is to test a piece of untreated and treated under same conditions!

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What was a major accomplishment of the Apollo mission

denpristay [2]

Hi there!

The <span>major accomplishment of the Apollo missions was to successfully land Americans on the Moon and to return them safely to Earth. One major reason for this was to establish a way for us to travel to other celestial bodies safely so we could research them and study how they work or to see if they are inhabitable.

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4 years ago

The pKa of the α‑carboxyl group of serine is 2.21 , and the pKa of its α‑amino group is 9.15 . Calculate the average net charge

sleet_krkn [62]

Answer:

Net charge in serine at pH equal to 8.30 is "0"

Explanation:

At pH > $pK_{a}$ , carboxyl group exists as $-CO_{2}^{-}$ (charged)

At pH < $pK_{a}$ , carboxyl group exists as -COOH (neutral)
At pH > $pK_{a}$ , amino group exists as $-NH_{2}$ (neutral)
At pH < $pK_{a}$ , amino group exists as $-NH_{3}^{+}$ (charged)
So, at pH = 8.30, both carboxyl and amino group exists in charged state.
Net charge in serine at pH equal to 8.30 is "0".
Structure of serine at pH equal to 8.30 has been shown below.

8 0

4 years ago

Ammonia (nh3) is widely used as a fertilizer and in many household cleaners. how much ammonia is produced when 6.64 mol of hydro

olga55 [171]

N₂ + 3H₂ ⇒ 2NH₃

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(6.64H₂/3H₂) x (2NH₃) =4.4266667

rounded to sig figs= 4.43

5 0

3 years ago