how many militers of a 2.0M solution is required to prepare 50ml 0f a 0.3M solution
Use CV=CV or MV=MV to solve. First convert 50 mL to its equivalent in L, which is 0.050L and convert your answer to ml by multiplying your answer to by 10^3. After plugging in your values and rearranging your equation, the formula should look like V=(MV)/M=[().3M)(0.05L)]/(2.0M). Hope this helps.
To determine the volume of a 2.0M solution needed to prepare a 0.3M solution, we can use the formula:
C1V1 = C2V2
Where:
C1 = initial concentration of the solution (2.0M)
V1 = initial volume of the solution (unknown)
C2 = desired concentration of the solution (0.3M)
V2 = desired volume of the solution (50ml)
Now, let's plug in the given values into the formula:
(2.0M)V1 = (0.3M)(50ml)
To isolate V1, divide both sides of the equation by 2.0M:
V1 = (0.3M)(50ml) / 2.0M
The M units cancel out, leaving:
V1 = (0.3) (50ml) / (2.0)
Calculating this expression gives us:
V1 = 7.5ml
Therefore, you will need 7.5ml of the 2.0M solution to prepare 50ml of a 0.3M solution.