How many liters of a 15% NaCl solution should be mixed with 1 L of a 20% NaCl solution to obtain a 16% NaCl solution?
What will be an ideal response?
Let x = the amount of 15% NaCL solution.
0.15(x) + 0.20(1) = 0.16(x + 1)
0.15x + 0.20 = 0.16x + 0.16
0.04 = 0.01x
x = 4 L
You might also like to view...
Which of the following is NOT a category of antibiotic drug used to treat bacterial infections?
A) carbapenem drugs B) monobactam drugs C) protease inhibitor drugs D) quinolone drugs
Answer the following statements true (T) or false (F)
1. The combining form bi/o means life. 2. The combining form gynec/o means beginning. 3. The combining form hemat/o means blood. 4. The combining form nephr/o means nerve. 5. The combining form cardi/o means heart.
Chicken soup has been scientifically proven to provide relief from cold symptoms
Indicate whether the statement is true or false.
Contraceptive failure rate is based on studies that directly measure the percentage of women who experience unintended pregnancy in the first six months of contraceptive use.
Answer the following statement true (T) or false (F)