We know the formula of the density:
ρ = $\frac{m}{V}$ ;
So the mass will be equal to:
m = ρ * V = 2.70 * 21.3 = 57,51 g = 57510 mg of substance.
So the answer is 57510.

7 0

2 years ago

What principal quantum number refers to:

docker41 [41]

The principle quantum number "n" represents the relative overall energy of each orbital, and the energy of each orbital increases as the distance from the nucleus increases. The sets of orbitals with the same "n" value are often referred to as electron shells or energy levels.

4 0

2 years ago

A 6 kg rock is sitting at the edge of a 100 m tall cliff. What is the potential energy of the rock with respect to the ground?

Hatshy [7]

Potential energy can be calculated by the formula Pe=mgh. Plug in your values:

Pe=mgh
Pe=(6 kg)(9.8m/s^2)(100 m)
Pe=5880 kg x m^2/s^2, or 5880 Joules

5 0

2 years ago

Riley is doing an experiment working with friction. He wants to find two ways to modify an object that could increase or decreas

Shtirlitz [24]

Riley can either change the surface area of the object or can change the slipperiness of the material.

5 0

2 years ago

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