An object has a mass of 48g and it has a height of 5cm, a width of 2cm and a length of 5cm.
1 answer:
Answer:
0.96g/cm³
Explanation:
Given parameters:
Mass of the object = 48g
Height of the object = 5cm
Width of the object = 2cm
Length of the object = 5cm
Unknown:
Density = ?
Solution:
Density of a body is the mass per unit volume of the body.
Mass is the amount of matter in a substance
Volume is the space such a body occupies
To find the volume;
Volume = l x w x h
Insert the parameters and solve;
Volume = 5cm x 2cm x 5cm = 50cm³
Density =
Density = = 0.96g/cm³
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Answer: The molarity of an HCl solution is 0.218 M if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid.
Explanation:
Given: = 43.6 mL,
= 0.125 M
= 25.0 mL,
= ?
Formula used to calculate the concentration of acid is as follows.
Substitute the values into above formula.
Thus, we can conclude that the molarity of an HCl solution is 0.218 M if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid.