vermanaman4572

What's the best job for you?

A chemist prepares a solution of silver (I) pre-chlorate(AgCIO4) by measuring out 4.2×10^2 umol of silver pre-chlorate into a 350 mL volume metric flask and filling the flask to the mark with water. Calculate the concentration and umol /liters of the chemists silver plate chlorate solution, be sure your answer has the correct number of significant digits 

18 mans plogh 18 bigha field in 18 days. So how many man plough the field in 1 days

1. 18 bigha
2. 1 bigha
3. 144 days
4. 18 days