Question

Поиск результатов по фразе "в раствор пищевой соды массой 450г с концетрацией 8% добали 10 гпищевой соды какова концетрация последнего растовора"

Answer 1

Решение:
В растворе массой 450 г пищевой соды в граммах равно:
450г*8%/100%=36 г
В раствор добавили 10г пищевой соды, следовательно раствора стало:
450г+10г=460г
А пищевой соды: 36г+10г=46г
Концентрация раствора стала: 46г/460г*100%=10%

Ответ: 10%

Answer 2

Calculating Concentration of the Final Solution

To calculate the concentration of the final solution after adding 10g of food-grade baking soda (sodium bicarbonate) to a solution with a mass of 450g and a concentration of 8%, we can use the formula for dilution:

C1V1 = C2V2

Where: - C1 = initial concentration - V1 = initial volume - C2 = final concentration - V2 = final volume

Applying the Formula

In this case, the initial solution has a mass of 450g and a concentration of 8%. We want to find the final concentration after adding 10g of food-grade baking soda.

- Initial concentration (C1): 8% - Initial volume (V1): unknown (since we only have the mass) - Final concentration (C2): unknown - Final volume (V2): 450g (mass of the initial solution) + 10g (mass of the added baking soda)

Calculating the Final Concentration

To find the final concentration, we can first calculate the volume of the initial solution and then use it to determine the final concentration.

Let's calculate the volume of the initial solution using the density of the solution. The density of the solution can be assumed to be close to the density of water, which is approximately 1g/mL.

Volume of initial solution (V1) = Mass of initial solution / Density of water

V1 = 450g / 1g/mL = 450mL

Now, we can use the dilution formula to find the final concentration:

C1V1 = C2V2

8% * 450mL = C2 * (450mL + 10mL)

Solving for C2

C2 = (8% * 450mL) / (450mL + 10mL)

C2 = (0.08 * 450) / 460

C2 ≈ 0.078

Conclusion

After adding 10g of food-grade baking soda to a solution with a mass of 450g and a concentration of 8%, the concentration of the final solution is approximately 7.8%.