A beaker weight 0.4N when empty and 1.4 when filled with water. What does it weight when filled with brine 1.2gcm3
To find the weight of the beaker when filled with brine, we need to calculate the weight of the brine separately and then add it to the weight of the empty beaker.
First, we need to find the weight of the brine. To do this, we need to know the volume of the brine.
Since the density of the brine is given as 1.2 g/cm³, we can assume that the volume of the brine is the same as the volume of water in the beaker.
Given that the weight of the beaker when filled with water is 1.4 N, we can use this weight to calculate the volume of water using the density formula:
Density = Mass/Volume
1.2 g/cm³ = Mass of water/Volume of water
Rearranging the formula, we get:
Volume of water = Mass of water/Density
Since the density of water is 1 g/cm³, the volume of water is 1.4 kg / 1 g/cm³ = 1.4 liters = 1400 cm³.
Now that we know the volume of the water, we can find the weight of the brine using the density of the brine:
Weight of brine = Volume of brine x Density of brine
Weight of brine = 1400 cm³ x 1.2 g/cm³ = 1680 grams = 1.68 N
Finally, to find the weight of the beaker when filled with brine, we need to add the weight of the empty beaker to the weight of the brine:
Weight of beaker with brine = Weight of empty beaker + Weight of brine
Weight of beaker with brine = 0.4 N + 1.68 N = 2.08 N
Therefore, the beaker will weigh 2.08 N when filled with brine.