3 years ago

Calculate the density of an object with a mass of 8g and a volume of 40mL *

Chemistry

1 answer:

Molodets [167]3 years ago

8 0

Answer:

<h2>The answer is 0.2g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{8}{40} = \frac{1}{5} \\$

We have the final answer as

Hope this helps you

You might be interested in

After 11.5 days, 12.5% of a sample of radon-222 that originally weighed 42g remains. What is the half-life of this isotope?

Bond [772]

Half-life is defined as the amount of time it takes a given quantity to decrease to half of its initial value. The equation to describe the decay is
Nt=N0(1/2) $^{t/t(1/2)}$ where N0 is the initial quantity, Nt is the remaining quantity after time t, t1/2 is the half-time. So work out the equation, t1/2 = t (-ln2)/ln(Nt/N0) = 11.5*(-ln2)/ln(12.5/100) = 3.83 days

5 0

3 years ago

A solution is prepared by mixing 38.0L of pyrimidine and 442.0L of water. What is the percent volume of pyrimidine in this solut

klasskru [66]

I have the same question and cant still answer it so I need the answers

0 0

3 years ago

___________________is the rate that an object moves in a certain direction. Question 3 options:

Nesterboy [21]

Answer: Velocity

Explanation:

i just took the quiz for k12

3 0

3 years ago

How many moles of neon occupy a volume of 14.3 l at stp? how many moles of neon occupy a volume of 14.3 l at stp? 1.57 moles 0.6

andriy [413]

The number of neon moles that occupy a volume of 14.3 l at STP is calculated as follows

At STP 1 mole = 22.4 liters

what about 14.3 liters

by cross multiplication
= (1 mole x 14.3 l)/22.4 l =0.638 moles of neon

5 0

3 years ago

Malia was able to make a paperclip float on the surface of water. What will most likely happen to the paperclip if a drop of dis

Arturiano [62]

Answer:

Its A

Explanation:

I just took the test

5 0

3 years ago