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Barbitol (106.12 g/mol) is a simple drug. What would be the freezing point of a solution prepared by dissolving 75.00 g of barbitol in 850.0 g of ethanol? [For ethanol, Kf = 1.99°C/m, freezing point of pure ethanol = –117.3°C]  

The 14C activity of an artifact has 10 disintegrations per minute per gram of carbon. If present-day plant life shows 15 dpm/g, how old is artifact? (The half-life of 14C is 5730 yr).  

The only stable isotope of aluminum is aluminum-27. What type of radioactive decay should be expected from ?

Calculate ΔG° for the following redox reaction. E°=-0.93V 2 Ag(s) + Pb2+(aq) → Ag+(aq) + Pb(s)

The only stable isotope of aluminum is aluminum-27. What type of radioactive decay should be expected from ?

The only stable isotope of aluminum is aluminum-27. What type of radioactive decay should be expected from ?

From the following list of aqueous solutions and water, select the one with the highest boiling point.

In the equation below, what particle or type of radiation needs to be included to balance the equation? 220Rn → ? + alpha particle

In the equation below, what particle or type of radiation needs to be included to balance the equation? 220Rn → ? + alpha particle

What is the pH of a 1.000 M HNO3 solution?