The concentration of dye in solution a is 20.422 m. a serial dilution is performed to make solutions b and c. in the first dilution, 2 ml of solution a is diluted with 12 ml water to make solution b. then, 2 ml of solution b is then diluted with 1 ml of water to make solution c. what is the concentration of dye in solution c? provide your response to three significant figures in units of molarity.

1.95 M

Explanation:

Considering

Moles of A = Moles of B

Or,

Given  that:

So,  

Molarity of solution B = 2.92 M

Again Considering,

Moles of B = Moles of C

Or,

Given  that:

So,  

Molarity of solution C = 1.95 M

14 days is the half-life of phosphorus-32

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.