fish give off the compound ammonia which has a PH above 7. To which class of compounds does ammonia belong?
2 answers:
<u>Answer:</u> Ammonia is considered as a base.
<u>Explanation:</u>
pH is defined as the negative logarithm of hydrogen or hydronium ion concentration that are present in a solution.
The equation representing pH of the solution follows:
pH range of the solution varies from 0 to 14.
There are 3 types of solution: acidic, basic and neutral
- If the pH of the solution is from 0 to 6.9, the solution is said to be acidic.
- If the pH of the solution is from 7.1 to 14, the solution is said to be basic.
- If the pH of the solution is 7, the solution is said to be neutral.
We are given:
Ammonia has a pH above 7. So, this compound is a basic compound.
Hence, ammonia is considered as a base.
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Answer:
The balanced equation for this reaction will be
→
We can see that 1 mole of methane requires 4 moles of fluorine but we have 0.41 moles of CH4 and 0.56mole of F2
So using the unitary method we will get that
- 1 mole of CH4 → 4 mole of 4 mole of fluorine
- 0.41 mole of methane → 4*0.41 = 1.64 mole of fluorine for complete reaction
but we have only 0.56 mole of fluorine that means fluorine is the limiting reagent and the product will only be formed by only this amount of fluorine.
- 4 moles of fluorine → 1 mole of CF4
- 0.56 mole →
= 0.14mole of CF4
- 4 moles of fluorine → 4 moles of HF
- 0.56 mole of fluorine → 0.56 mole of HF
now to find the heat released we have the formula as
DELTA H = n * Delta H of product - n *delta H of reactant
where n is the moles of the reactant and product.
note: since no information is given about the enthalpies of the species we leave it on general equation also you need to add the product side enthalpy of the species present and similarly on the product side.