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We should first look at the nature of the compound. Its sodium carbonate, that is a salt formed from a strong base (that's Na OH - sodium hydroxide) and a weak mineral acid (that's carbonic acid). So we know that bases turn moist red litmus blue, similarly in this salt, the moist red litmus should turn red as the characteristic of the strong base part of this salt overpowers the weak acid part of it.
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What will happen if a solution of sodium hydrogen carbonate heated?
Sodium carbonate would be deposited at the bottom of the solution.
What would you observe if you mixed sodium carbonate and water?
If you mix sodium carbonate and water, you would observe that the sodium carbonate dissolves in the water. This is because sodium carbonate is highly soluble in water. The solution may also become slightly warm due to the dissolution process.
What colour would litmus paper turn into when dipped into hydrochloric acid?
Depends on the litmus paper. Red litmus will not turn but blue litmus will turn redish pink.
What kind of precipitate forms from copper chloride and sodium carbonate?
Copper carbonate would precipitate if you combined solutions of copper (II) chloride and sodium carbonate.
How would you separate water sodium carbonate and calcium carbonate?
By distillation or evaporation of water
What would happen when blue litmus is put in sodium carbonate solution?
Blue litmus turns red in acid. Sodium carbonate solution is alkaline (basic), so nothing will happen when blue litmus is put into this. Red litmus will turn blue if added to sodium carbonate.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
What reaction can be performed to tell the difference between sodium chloride and sodium hydroxide?
A litmus test is one way of comparing. Sodium Chloride is a neutral salt and so would have no effect on litmus. Sodium Hydroxide is a base, and would turn litmus blue.
What will happen if a solution of sodium hydrogen carbonate heated?
Sodium carbonate would be deposited at the bottom of the solution.
What will be the effect of sodium hydroxide in blue litmus paper?
Blue litmus paper turns red in an acid and remains blue in a base such as sodium hydroxide. Red litmus paper would turn blue in the base sodium hydroxide.
Sodium is readily oxidized by oxygen gas if the product of the reaction were dissolved in water what would be the color the litmus for a litmus test?
Sodium is readily oxidized by oxygen gas. If the product of the reaction were dissolved in water, the color of the litmus for a litmus test would be blue. The red litmus paper will turn blue.
What would you observe if you mixed sodium carbonate and water?
If you mix sodium carbonate and water, you would observe that the sodium carbonate dissolves in the water. This is because sodium carbonate is highly soluble in water. The solution may also become slightly warm due to the dissolution process.
What colour would litmus paper turn into when dipped into hydrochloric acid?
Depends on the litmus paper. Red litmus will not turn but blue litmus will turn redish pink.
How would a dry sample of sodium carbonate be obtained from a mixture of sodium carbonate and calcium carbonate?
Calcium carbonate is not soluble in water, sodium carbonate is soluble in water. Dissolve the mixture and filter: the Na2CO3 pass the filter as a solution and CaCO3 remain on the filter. Gently warm the solution to obtain crystallized sodium carbonate.
What colour would blue litmus paper change to in vinegar?
Because Vinegar is an acid, the litmus paper would turn red
What kind of precipitate forms from copper chloride and sodium carbonate?
Copper carbonate would precipitate if you combined solutions of copper (II) chloride and sodium carbonate.
How would you separate water sodium carbonate and calcium carbonate?
By distillation or evaporation of water
