Question

ПОМОГИТЕ ПОЖАЛУЙСТА В 480г раствора, содержащего 15% сахара, добавили 120г воды. Сколько % составляет концентрация сахара в последнем растворе?

Answer 1

1) 480*15:100=72 (г) - сахара в растворе.
2) 480+120=600 (г) - масса нового раствора
3) 72:600*100%=12% - концентрация сахара в последнем растворе
Ответ: 12 процентов составляют концентрация сахара в последнем растворе

Answer 2

Calculation of Sugar Concentration

To calculate the concentration of sugar in the final solution, we need to consider the initial solution and the amount of water added.

Given: - Initial solution: 480g with 15% sugar - Water added: 120g

To find the concentration of sugar in the final solution, we can use the following formula:

Concentration of sugar (%) = (Mass of sugar / Total mass of solution) * 100

Let's calculate the concentration of sugar in the final solution step by step:

1. Calculate the mass of sugar in the initial solution: - Mass of sugar = 15% of 480g = 0.15 * 480g = 72g

2. Calculate the total mass of the final solution: - Total mass of solution = Mass of initial solution + Mass of water added - Total mass of solution = 480g + 120g = 600g

3. Calculate the concentration of sugar in the final solution: - Concentration of sugar = (Mass of sugar / Total mass of solution) * 100 - Concentration of sugar = (72g / 600g) * 100 = 12%

Therefore, the concentration of sugar in the final solution is 12%.

Please note that the sources provided in the question are not relevant to the calculation of sugar concentration in the solution.