How do you solve mass if you have the volume and density?

Answer 1

1. Determine the value of log 3 81 

2. If A  B n(A)  4, n(B)  7 the n(A  B) =

3. The product of the zeros of the polynomial 7 10 2

x  x  is

A)  B) C) D) 

4. If the system of equations 4x  5y  9, 8x  ky 18 has infinitely

many solutions then k =

A) 8 B) 9 C) 10 D) 1

5. The discriminant of 2 5 3 0

2

x  x   is

A) 1 B) C) 25 D) 24

Answer 2

If you know the density, then you know the mass in each unit of volume. Just multiply the density by how many units of volume you have in your beaker, and that'll give you the total mass of the sample.

Answer 3

The formula to find density is:

density = mass/volume

To find mass when density and volume are known:

mass = density x volume

Example: What is the mass of a 10.0cm3 sample of gold with a density of 19.30g/cm3?

Known:

volume = 10.0cm3

density = 19.30g/cm3

Equation:

mass = 19.30g/cm3 x 10.0cm3 = 193g

Answer 4

No Density is mass over volume - Density = Mass/Volume So volume is mass over density = Volume = Mass/Density

Answer 5

Density = mass divided by volume. Therefore, volume = mass divided by density

Answer 6

The formula for density is D=M/V. So V=M/D

Answer 7

That's the definition of density.

The dimensions of density are ML-3. In metric units, that's [ kgm/m3 ] or [ gm/cm3 ].

Answer 8

Correct!

Density x Volume= Mass

Answer 9

Mass dived by density equals volume.