Chemistry, 31.07.2019 22:00 abbyheule1440

What is the mass of a 10.0 ml sample of urine with a specific gravity of 1.04?

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Answer from: luna1742

The formula of specific gravity is:

Specific gravity = $\frac{density of an object}{density of water}$

To get this, you can derive a formula for mass. If you transpose the density of water to the other side of the equation (by specific gravity) you will multiply it with specific gravity. Now the density of water is 1 g/mL so you will retain the value of the specific gravity. That will just leave you with this formula:

Specific gravity = density of an object

Density of an object can be computed using the formula:

Density = mass/volume now you can fuse the two formulas to get this:

Specific gravity = mass/volume

From there we can derive the formula for mass by transposing volume to the other side of the equation:

Volume x specific gravity = mass

Lets's use your given in our new equation:

10.0 mL x 1.04 = mass
10.4 = mass

The mass of a 10.0 mL sample of urine with a specific gravity of 1.04 is 10.4g.

Answer from: Quest

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

Answer from: Quest

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

$^{m}_{4}x$ and $^{m}_4y$

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

$^{m}_{5}x^{-}$

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be $^{9}_{5}be^{-}$ and $^{9}_{4}be$ .

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.

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