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meriva
2 years ago
10

The diagram below shows the PH values of several substances.

Chemistry
1 answer:
skelet666 [1.2K]2 years ago
4 0

Answer:

Changes in colour of litmus paper.

  • Blue litmus turns red under acidic conditions.
  • Red litmus turns blue under basic conditions.

Noe

PH values:-

  • K=4
  • M=11

K is acidic as pH is <7

Hence K will change the colour of blue litmus paper.

#B

Examples of substances

  • K=Vinegar, Tomatoes.
  • M=Milk of magnesia,Soap
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Mass of SO₂ can be made from 25.0 g of Na₂SO₃ and 22 g of HCl = 12.672 g

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SO₂( sulfur dioxide) can be produced in the lab. by the reaction of hydrochloric acid & sulphite salt such as sodium.

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since <u>sodium sulfite</u> is <u>limiting reactant</u> for above chemical reaction

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