A 87.0 mL aliquot of a 0.500 M stock solution must be diluted to 0.100 M.
Assuming the volumes are additive, how much water should be added?

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

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An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25