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How do you make a pure sample of salt?
Sodium hydroxide is an alkali. If you take solutions of hydrochloric acid and sodium hydroxide that have the same concentration, and mix equal volumes of them, the sodium hydroxide neutralises the acid. if you take tests with the solution on universal indicator paper, you will find it has pH7. If you leave the solution to evaporate, you will see crystals of salt. This is the kind of salt you put on your chips but remember not to eat them in a laboratory! =)
Which solutions can be mixed together to form a neutral solution in a pH scale?
Mixing equal amounts of an acid and a base with the same pH value will create a neutral solution on the pH scale. Examples include mixing hydrochloric acid with sodium hydroxide or sulfuric acid with potassium hydroxide.
What chemical should be added to neutralize hydrochloric acid?
Baking soda (sodium bicarbonate) or calcium carbonate (lime) can be added to neutralize hydrochloric acid by producing water, carbon dioxide, and a salt. Always add the neutralizing agent slowly to prevent excessive foaming or splattering. Make sure to wear appropriate personal protective equipment and work in a well-ventilated area.
How can you identify an acid and a base by their chemical formulas?
An acid typically has hydrogen as the first element in its chemical formula, such as HCl for hydrochloric acid. A base will often contain hydroxide ion (OH-) in its formula, like NaOH for sodium hydroxide. The number of hydrogen ions and hydroxide ions can also indicate the strength of the acid or base.
Is the enthalpy change of the chemical reaction between a monoprotic acid and sodium hydroxide the same for all strong monoprotic acids?
The reaction that occurs between a strong monoprotic acid and sodium hydroxide is H++OH- => H2O. This reaction is the same for all strong monoprotic acids and sodium hydroxide so, in theory, they should all have the same standard enthalpy of reaction. In practice, there are very slight differences between acids. If you are in a freshman or sophmore chemistry class, say yes. If you are in physical or analytical chemistry say no.
Why does sulphuric acid react easily with sodium hydroxide and not hydrochloric acid?
Sulfuric acid reacts easily with sodium hydroxide to form sodium sulfate and water because sulfuric acid is a strong acid and sodium hydroxide is a strong base. This reaction occurs because both acids and bases react to form water and a salt. Hydrochloric acid may not react in the same way because it is a weaker acid compared to sulfuric acid.
What is happening in terms of ion when sodium hydroxide neutralizes hydrochloric acid?
This reaction is a strong base reacting with a strong acid to give a salt (NaCl) plus water. The positive Na ion combines with the negative Cl ion to form the sodium chloride. The hydroxyl group of sodium hydroxide combines with the hydrogen of HCl (hydrochloric acid) to form water. The charge on Na (+1) neutralizes the charge on Cl (-1) and the same things happens with H+ and OH-.
Is Mixing sodium hydroxide with hydrochloric acid to form table salt and water a redox reaction?
Yes, mixing sodium hydroxide with hydrochloric acid to form table salt (sodium chloride) and water is a neutralization reaction. It is not a redox reaction because there is no transfer of electrons between the reactants.
When sodium chloride and hydrochloric acid react then why sodium hydroxide do not formed?
The reaction is: NaOH + HCl = NaCl + H2O HCl and NaCl cannot react, the anion is the same.
Oxides will react with hydrochloric acid but not with aqueous sodium hydroxide?
Oxides react with hydrochloric acid to form corresponding chlorides and water. This is because hydrochloric acid is a strong acid that can donate protons to the oxide, leading to the formation of a salt and water. On the other hand, oxides do not react with aqueous sodium hydroxide because sodium hydroxide is a strong base that does not readily react with oxides under normal conditions. The lack of protons in sodium hydroxide prevents it from reacting with oxides in the same way as hydrochloric acid.
How do you make a pure sample of salt?
Sodium hydroxide is an alkali. If you take solutions of hydrochloric acid and sodium hydroxide that have the same concentration, and mix equal volumes of them, the sodium hydroxide neutralises the acid. if you take tests with the solution on universal indicator paper, you will find it has pH7. If you leave the solution to evaporate, you will see crystals of salt. This is the kind of salt you put on your chips but remember not to eat them in a laboratory! =)
Which solutions can be mixed together to form a neutral solution in a pH scale?
Mixing equal amounts of an acid and a base with the same pH value will create a neutral solution on the pH scale. Examples include mixing hydrochloric acid with sodium hydroxide or sulfuric acid with potassium hydroxide.
What is the concentration of hydrochloric acid if 20.0 mL of acid is neutralized by 30.0mL of 0.20 N sodium hydroxide?
The moles of sodium hydroxide used can be calculated (moles = Molarity x Volume). Since it is a 1:1 reaction, the moles of hydrochloric acid neutralized will be the same. Using the moles and volume of hydrochloric acid, you can calculate its concentration (Molarity = moles / Volume).
What chemical should be added to neutralize hydrochloric acid?
Baking soda (sodium bicarbonate) or calcium carbonate (lime) can be added to neutralize hydrochloric acid by producing water, carbon dioxide, and a salt. Always add the neutralizing agent slowly to prevent excessive foaming or splattering. Make sure to wear appropriate personal protective equipment and work in a well-ventilated area.
Is hydrochloric acid the same as sodium bisulfate?
No, hydrochloric acid is a strong mineral acid composed of hydrogen and chlorine (HCl), while sodium bisulfate is a salt compound composed of sodium, hydrogen, sulfur, and oxygen (NaHSO4). They have different chemical compositions and properties.
Is lime water the same as hydrochloric acid?
No -limewater is a base, specfically a solution of calcium hydroxide or Ca(OH)2 Hydrochloric acid is a solution of hydrogen chloride or HCl
Is sodium hydroxide same as sodium benzoate?
No, sodium hydroxide and sodium benzoate are not the same. Sodium hydroxide is a strong base, commonly used in cleaning products and manufacturing processes. Sodium benzoate is a preservative commonly used in food and beverages to prevent the growth of bacteria and mold.
