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How many 200 ml glasses can you fill if you have 1 liter?
5 obviously. 1L=1000ml 200x5=1000ml
What is the molarity of a solution with 5 moles of lithium flouride dissolved in 200 mL of water?
The molarity of the solution is calculated by dividing the number of moles of solute by the volume of the solution in liters. In this case, 5 moles of lithium fluoride in 200 mL (or 0.2 L) of water gives a molarity of 25 M.
How many kw in five hours does 10 20 watt 12 volt lights use?
If you have ten 20-watt lights running they take a power of 200 watts, continuously. If run for 5 hours they take 200x5 watt-hours of energy, which is 1000 watt-hours or 1 kilowatt-hour. That would register as 1 unit on a domestic electricity meter. This does not depend on the voltage of the lamps.
How many ml of 1 M stock solution of Na Cl are needed to prepare 200 ml of a 0.05 M solution?
Molartiy = moles of solute/Liters of solution200 mL X (1 Liter/10^2)= 0.200 Liters0.200 Liters x (0.05 M)= .01 moles of NaOH.01 moles of NaOH x (40 g NaOH/ 1 mole NaOH)= 0.4 g NaOH are required
