Question

How many grams of sodium bicarbonate are in 250 mL of 8.4% sodium bicarbonate?

Answer 1

To find the mass of sodium bicarbonate in a 250 mL solution with an 8.4% concentration, multiply the solution's mass by the percentage of sodium bicarbonate, which results in 21 grams.

Step-by-step explanation:

To calculate the mass of sodium bicarbonate in a 250 mL solution with an 8.4% concentration, we first need to know the density of the solution. For the sake of this example, we'll assume the density is similar to that of water, which is 1 g/mL. This means 250 mL of solution would weigh 250 grams. To find the mass of sodium bicarbonate, simply multiply the total mass of the solution by the percentage of sodium bicarbonate.

Mass of sodium bicarbonate = Total mass of solution x Percentage of sodium bicarbonate

Mass of sodium bicarbonate = 250 g x 0.084 (which is 8.4% expressed as a decimal)

Mass of sodium bicarbonate = 21 grams

Therefore, there are 21 grams of sodium bicarbonate in 250 mL of an 8.4% sodium bicarbonate solution.

Answer 2

To find the number of grams of sodium bicarbonate in 250 mL of an 8.4% sodium bicarbonate solution, multiply the volume by the concentration.

Step-by-step explanation:

To calculate the number of grams of sodium bicarbonate in 250 mL of an 8.4% sodium bicarbonate solution, you need to multiply the volume in mL by the concentration (in decimal form) and the density of the solution. First, convert the volume to L by dividing by 1000:

250 mL ÷ 1000 = 0.25 L

Next, multiply the volume by the concentration:

0.25 L * 0.084 = 0.021 g

Therefore, there are 0.021 grams of sodium bicarbonate in 250 mL of an 8.4% sodium bicarbonate solution.