Chemistry Questions

Hi could someone please help me with a few questions:

1.growth medium for E.coli contains glucose (Mr = 180) at a concentration of 0.4 % (m/v). What is the molar concentration (molarity)?

2.A patient needs 100 g glucose in the next 24 h. How many litres of a 5 % (m/v) glucose solution must be given?

3.You have a 5 mM stock solution of ATP. What volumes of this solution and water would you mix to prepare 10 ml of a 10-fold dilution?

4.What would be the final concentration of ATP in this diluted solution?

5.Now, what volumes of ATP stock solution and water would you mix to prepare 10 ml of a 1:10 dilution?

6.What volume of 0.5 mol L-1 ATP solution would be required to make up 200 ml of a solution of 50 μmol L-1?

Thanx!!!

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