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alexandr402 [8]
3 years ago
12

Which of the following was not used as evidence to support

Chemistry
1 answer:
vazorg [7]3 years ago
6 0

Answer:

B.

Explanation:

Lol notes brought everything but B. Up

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alina1380 [7]
D Direction of motion I hope this helps
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3 years ago
A 0.307-g sample of an unknown triprotic acid is titrated to the third equivalence point using 35.2 ml of 0.106 m naoh. calculat
Jet001 [13]
Triprotic acid is a class of Arrhenius acids that are capable of donating three protons per molecule when dissociating in aqueous solutions.  So the chemical reaction as described in the question, at the third equivalence point, can be show as: H3R + 3NaOH ⇒ Na3R + 3H2O, where R is the counter ion of the triprotic acid. Therefore, the ratio between the reacted acid and base at the third equivalence point is 1:3. 
The moles of NaOH is 0.106M*0.0352L = 0.003731 mole.  So the moles of H3R is 0.003731mole/3=0.001244mole.
The molar mass of the acid can be calculated: 0.307g/0.001244mole=247 g/mol.
6 0
4 years ago
A compound with the molecular formula C10H10O4 produces a 1H NMR spectrum that exhibits only two signals, both singlets. One sig
Kamila [148]

Answer:

The attached figure shows the structure of dimethyl terephthalate.

Explanation:

Dimethyl terephthalate is a compound whose formula is C6H4 (COOCH3) 2. It is a diester produced from terephthalic acid and methanol. It is characterized by being a white solid. Another method for the preparation is from p-xylene and methanol, which is characterized by having an oxidation and an esterification.

8 0
3 years ago
Which of the following processes in the water cycle causes the formation of clouds
likoan [24]
I would sat the answer will be condensation if that's one of your choices
4 0
3 years ago
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Is it true that the formula for magnesium sulfate shows that there are four atoms of sulfur
Ulleksa [173]
The chemical formula for magnesium sulfate is MgSO4, so it shows that there are four atoms of oxygen but not sulfur. There is only one atom of sulfur in the formula
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3 years ago
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