Question
Indicate how 18 kg of a 30 ppm KBr solution is prepared from the pure reagent.
194
likes969 views
Answer to a math question Indicate how 18 kg of a 30 ppm KBr solution is prepared from the pure reagent.
Santino
4.5112 Answers
1. Determine the parts per million (ppm) concentration:
C = \frac{m(KBr)}{m(\text{total solution})} \times 10^6
2. Substitute the given values and solve for \(m(KBr)\):
30 = \frac{m(KBr)}{18} \times 10^6
3. Simplify:
m(KBr) = \frac{30 \times 18}{10^6}
4. Calculate \(m(KBr)\):
m(KBr) = 0.00054 \text{ kg}
2. Substitute the given values and solve for \(m(KBr)\):
3. Simplify:
4. Calculate \(m(KBr)\):
Frequently asked questions (FAQs)
What is the antiderivative of the function f(x) = 3x^2 + 5, according to the Fundamental Theorem of Calculus?
+
Math question: What is the limit of f(x) as x approaches 2, if f(x) = (x^2 - 4) / (x - 2)?
+
What is the average age of the students in a class if the ages of 30 students are 12, 13, 14, 11, 12, 13, 15, 12, 11, 13, 14, 12, 13, 14, 11, 12, 13, 15, 12, 11, 13, 14, 12, 13, 14, 11, 12, 13, 15, and 12?
+
New questions in Mathematics