Answer:
There are 0.1 moles of solute in 250 mL of 0.4 M solution.
Explanation:
First, recognize that the molar concentration tells you how many moles of the solute are present in one liter of solution. In a 0.4 M solution, there are 0.4 moles of solute in every liter of solution. You can determine the number of moles of solute in 250 mL of the solution using dimensional analysis.
250
ml . 1L/1000 L . 0.4mol / 1L
Units of liters and milliliters cancel, leaving you with a final answer in units of moles, at 0.1 mol.
The third beaker: since it has the most amount of salt and the same amount of water as all the other beakers . So it has the highest concentrated amount :)
True because one car can have more power and just be able to to the easy stuff and the hard stuff
Answer:
The temperature change is 80°C
Explanation:
Heat absorbed by the melting ice (Q) = mL = 312×336 = 104,832 J
∆T = Q/mC = 104,832/312×4.2 = 80°C
