Question

Смешали 150г 30% ного раствора азотной кислоты с 50 г 35% ного раствора азотной кислоты. каково процентное содержание азотной кислоты во вновь полученном растворе? помогите пожалуйста, даю 30 баллов ООООЧЕНЬ СРОЧНО

Answer 1

Ответ:

ответ:32.6%

Объяснение:

.......................

Answer 2

Calculation of the Nitric Acid Concentration

To calculate the percentage of nitric acid in the newly obtained solution, we need to consider the amounts and concentrations of the two initial solutions.

Let's denote the following variables: - m1: mass of the first solution (150 g) - c1: concentration of the first solution (30%) - m2: mass of the second solution (50 g) - c2: concentration of the second solution (35%) - x: percentage of nitric acid in the newly obtained solution

To find the percentage of nitric acid in the final solution, we can use the following equation:

m1 * c1 + m2 * c2 = (m1 + m2) * x

Substituting the given values into the equation, we have:

150 g * 30% + 50 g * 35% = (150 g + 50 g) * x

Simplifying the equation:

45 g + 17.5 g = 200 g * x

62.5 g = 200 g * x

Dividing both sides of the equation by 200 g:

x = 62.5 g / 200 g

x = 0.3125

Therefore, the percentage of nitric acid in the newly obtained solution is 31.25%.