Final answer:
To find MV1, we apply the conservation law concept (M1 x MV1 = M2 x MV2). Given M1=0.5, M2=1.2, and MV2=3L, we find MV1 by dividing (1.2 x 3L) by 0.5, resulting in 7.2L for MV1.
Step-by-step explanation:
To calculate the missing variable MV1 in the context of this question, it seems we're dealing with a variant of the conservation of some quantity or a direct proportionality. While the exact nature of M and MV is not specified, we typically use conservation laws in physics. Assuming MV is the product of mass (M) and another variable (V), and the product MV is conserved or proportional, we can use the given values of M1, M2, and MV2 to find MV1.
Since M1 x MV1 = M2 x MV2 and we're given M1 = 0.5, M2 = 1.2, and MV2 = 3L, we can setup the equation as:
0.5 x MV1 = 1.2 x 3L
To solve for MV1, divide both sides by 0.5:
MV1 = (1.2 x 3L) / 0.5
MV1 = (3.6L) / 0.5
MV1 = 7.2L
Therefore, the value for MV1 is 7.2 Liters (L).