All categories

3 years ago

Calculate the density, in g / mL , of a liquid that has a mass of 0.125 g and a volume of 0.000285 L

Chemistry

1 answer:

maria [59]3 years ago

4 0

Answer:

ρ = 0.439 g/mL

Explanation:

Given data

Mass of the liquid: 0.125 grams

Volume of the liquid: 0.285 milliliters

0.000285 L × (1000 mL/ 1 L) = 0.285 mL

The density (ρ) of a liquid is equal to its mass (m) divided by its volume (V).

ρ = m/V

ρ = 0.125 g/0.285 mL

ρ = 0.439 g/mL

The density of the liquid is 0.439 g/mL.

You might be interested in

What is the composition, in atom percent, of an alloy that consists of a) 5.5 wt% Pb and b) 94.5 wt% of Sn? Assume that the atom

Anastaziya [24]

Answer : The percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

Explanation :

First we have to calculate the number of atoms in 5.5 wt% Pb and 94.5 wt% of Sn.

As, 207.2 g of lead contains $6.022\times 10^{23}$ atoms

So, 5.5 g of lead contains $\frac{5.5}{207.2}\times 6.022\times 10^{23}=1.59\times 10^{22}$ atoms

and,

As, 118.71 g of lead contains $6.022\times 10^{23}$ atoms

So, 94.5 g of lead contains $\frac{94.5}{118.71}\times 6.022\times 10^{23}=4.79\times 10^{23}$ atoms

Now we have to calculate the percent composition of Pb and Sn in atom.

$\% \text{Composition of Pb}=\frac{\text{Atoms of Pb}}{\text{Atoms of Pb}+\text{Atoms of Sn}}\times 100$

$\% \text{Composition of Pb}=\frac{1.59\times 10^{22}}{(1.59\times 10^{22})+(4.79\times 10^{23})}\times 100=3.21\%$

and,

$\% \text{Composition of Sn}=\frac{\text{Atoms of Sn}}{\text{Atoms of Pb}+\text{Atoms of Sn}}\times 100$

$\% \text{Composition of Sn}=\frac{4.79\times 10^{23}}{(1.59\times 10^{22})+(4.79\times 10^{23})}\times 100=96.8\%$

Thus, the percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

6 0

3 years ago

The chemical bonding in sodium phosphate, Na3PO4, is classified as:

fiasKO [112]

Ionic bonding between sodium and phosphate ions.

7 0

3 years ago

Read 2 more answers

If a star of 50 solar masses were to supernova, it would most likely become a _____.

alexandr1967 [171]

The answer is Black Hole.

7 0

3 years ago

Read 2 more answers

Which electron configuration represents a violation of the pauli exclusion principle?

Katarina [22]

The electron configuration that represents a violation of the pauli exclusion principle is:

1s: ↑↓
2s: ↑↑
2p: ↑
The Pauli exclusion principle refers to the quantum mechanical rule which expresses that at least two indistinguishable fermions (the particles with half-integer spin) can't involve a similar quantum state inside a quantum framework all the while.

7 0

3 years ago

Read 2 more answers

What initial observation led to the Alvarez asteroid-impact theory? a large undersea crater off the coast of the Yucatan Peninsu

Nikitich [7]

Answer: high iridium levels in a 66- million-year-old clay layer in Denmark and Italy

Explanation:

6 0

3 years ago

Read 2 more answers