If 12.45gm NaCL is dissolved in 115ml of water, what is the density of NaCL?
The density of a substance is defined as its mass per unit volume. To find the density of NaCl in this case, we need to divide its mass by its volume.
Given information:
Mass of NaCl = 12.45 g
Volume of water = 115 ml
To find the density, divide the mass of NaCl by the volume of NaCl:
Density = Mass / Volume
Density = 12.45 g / 115 ml
Now, it's important to note that the units need to be consistent. Since the volume is given in milliliters (ml), we need to convert the mass to grams (g) if it's not already in grams.
To convert grams to milliliters, we can use the density of water, which is 1 g/ml at room temperature. We can assume that the density of NaCl is similar, so we can use this conversion factor.
12.45 g NaCl * (1 ml / 1 g) = 12.45 ml NaCl
Now, we subtract the volume of NaCl from the volume of water:
Volume of water - Volume of NaCl = 115 ml - 12.45 ml = 102.55 ml
Now, let's calculate the density:
Density = 12.45 g / 102.55 ml
Therefore, the density of NaCl in this solution is approximately 0.121 g/ml.