QUICK please Which of the following dilutions would produce 2.0M acid from 3.0M acid

A) 3.0mL acid and 2.0mL water

B) 2.0mL acid and 1.0mL water

C) 2.0mL acid and 3.0mL water

D) 1.0mL acid and 2.0mL water

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?

What is the vapor pressure of a solution with a benzene to octane?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.