What is the concentration in parts per million of DDT in 6x10^-4 g in 1.8 kg minnow tissue.
What is the concentration in parts per million of DDT in 6x10^-4 g in 1.8 kg...
MO) LO Be sure to answer all parts. What is the concentration in parts per million of DDT in each of the following? a. 2 x 10 * g in 1.2 kg minnow tissue 2.0 ppm DDT b. 510 pg in 1.7 kg breast milk 510 ppm DDT
How many milliliters of a 5.7 M NaCl solution would be needed to prepare each solution? a. 55 mL of a 0.38 M solution: mL mL b. 310 mL of a 0.058 M solution: What is the concentration in parts per million of DDT in each of the following a. 0.037 mg in 1200 g plankton ppm DDT b. 2.7 mg in 1.8 kg needlefish tissue ppm DDT
Part B: Parts Per Units Parts per million (ppm) and parts per billion (ppb) are common units for environmen- tal samples. The calculations are very similar to the percentage units. (which are es- sentially parts per hundred units). The mass units must be the same for the numerator and denominator, so these units cancel during the calculations. units; show all Please answer the following questions involving the parts per of your calculations. 7. A sample of river water was analyzed,...
Six measurements were made of the magnesium ion concentration (in parts per million, or ppm) in a city's municipal water supply, with the following results. It is reasonable to assume that the population is approximately normal. 188 135 160 173 183 168 Construct a 95% confidence interval for the mean magnesium ion concentration. A) 165.0 < µ < 170.7 B)164.7 < µ < 171.0 C)147.9 < µ < 187.8 D) 146.0 < µ < 189.7
Six measurements were made of the magnesium ion concentration (in parts per million, 21) or ppm) in a city's municipal water supply, with the following results. It is reasonable to assume that the population is approximately normal. 188 135 160 173 183 168 Construct a 95% confidence interval for the mean magnesium ion concentration. A) 165.0 < μ < 170.7 B) 164.7 < μ < 171.0 C) 147.9 < μ < 187.8 D) 146.0 < μ < 189.7
please show your work
5. What is the concentration of 0.039 g KCN in 100 ml solution in parts per million (ppm).
In clinical applications, the unit parts per million (ppm) is used to express very small concentrations of solute, where ppm is equivalent to 1 mg of solute per 1 L of solution. Calculate the concentration in parts per million for cach of the solutions. There is 29 ug of calcium in a total volume of 61 mL. concentration of calcium: ppm There is 0.57 mg of caffeine in a total volume of 109 ml. concentration of caffeine: ppm There is...
QUESTION 18 Calculate the parts per million of mercury in 3.0 g of river water containing 1.5 x 10-6 g of Hg. 0.5 ppm 4.5 ppm 9.2 ppm 30 ppm
Concentrations of dissolved solids in water are often reported in parts per million (ppm) or parts per billion (ppb). One part per billion of a solute is equivalent to 1 ug (microgram) of that solute dissolved in 1 litre of water (i.e., 1 ppb = 1 pg/L). The toxic water crisis in Flint, Michigan in 2015 yielded test results of up to 1051 ppb of lead dissolved in tapwater. (The maximum allowable concentration set by Health Canada is 5 ppb)....
Concentrations of dissolved solids in water are often reported in parts per million (ppm) or parts per billion (ppb). One part per billion of a solute is equivalent to 1 ug (microgram) of that solute dissolved in 1 litre of water (i.e., 1 ppb = 1 ug/L). The toxic water crisis in Flint, Michigan in 2015 yielded test results of up to 1051 ppb of lead dissolved in tapwater. (The maximum allowable concentration set by Health Canada is 5 ppb)....