Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

24.50 g of Na react with H2O to make sodium hydroxide and H, gas. How much sodium
hydroxide is made if there is an excess of water?


Sagot :

Answer:

42.61 g of NaOH.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2Na + 2H₂O —> 2NaOH + H₂

Next, we shall determine the mass of Na that reacted and the mass of NaOH produced from the balanced equation. This is illustrated below:

Molar mass of Na = 23 g/mol

Mass of Na from the balanced equation = 2 × 23 = 46 g

Molar mass of NaOH = 23 + 16 + 1

= 40 g/mol

Mass of NaOH from the balanced equation = 2 × 40 = 80 g

SUMMARY:

From the balanced equation above,

46 g of Na reacted to produce 80 g of NaOH.

Finally, we shall determine the mass of NaOH produced by the reaction of 24.50 g of Na. This can be obtained as follow:

From the balanced equation above,

46 g of Na reacted to produce 80 g of NaOH.

Therefore, 24.50 g of Na will react to produce = (24.50 × 80)/46 = 42.61 g of NaOH.

Thus, 42.61 g of NaOH were obtained from the reaction.