Based on the compounds given, I can say that the substance that is considered essential in the plastic making is NITRIC ACID. This substance is also known as aqua fortis and spirit of niter wherein this decomposes into oxides of nitrogen and water. The answer would be the last option. Hope this helps.
<u>Given that </u>–
<u>We know that</u> –
Then –
Now the number of moles of KOH need to ensure that concentration of Hydroxide anions is equal to –
Volume of the solution contains the need number of moles of Hydroxide anions –
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Answer:
4
Explanation:
The zeros before a non zero digit do not count as significant figures so there are 4 sig figs in the number
True precise and accurate are the same thing