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3 years ago

What is the density of a sample of rubbing alcohol if it has a specific gravity of 0.789?

1 answer:

ioda3 years ago

6 0

Specific gravity <span> is a dimensionless unit defined as the ratio of the density of a substance to the density of water - at a specified temperature and can be expressed as. SG = ρ</span>substance<span> / ρ</span>H2O<span> . We calculate as follows:

</span>0.789 = ρsubstance / 1000 kg/m^3
ρsubstance = 789 kg / m^3

Hope this answers the question. Have a nice day.

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True or false certain cations are associated with either exotermic or endothermic processes

erastova [34]

Explanation:

i think it is exothermic processes

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3 years ago

A sample of neon gas occupies 105 L at 27°C under a pressure of

Viefleur [7K]

Answer: Volume occupied by given neon sample at standard condition is 123.84 L.

Explanation:

Given: $V_{1}$ = 105 L, $T_{1} = 27^{o}C = (27 + 273) K = 300 K$ , $P_{1}$ = 985 torr

At standard conditions,

$T_{2}$ = 273 K, $P_{2}$ = 760 K, $V_{2}$ = ?

Formula used to calculate the volume is as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}$

Substitute the values into above formula as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{985 torr \times 105 L}{300 K} = \frac{760 torr \times V_{2}}{273 K}\\V_{2} = \frac{94116.75}{760} L\\= 123.84 L$

Thus, we can conclude that volume occupied by given neon sample at standard condition is 123.84 L.

8 0

2 years ago

¿Cuántos moles de C3H8 contienen 9.25 x 10^24 moléculas?

Igoryamba

Answer:

$\large \boxed{\text{e. 15.4 mol C$_{3}$H}_{8}}$

Explanation: $\text{Moles of propane} = 9.25 \times 10^{24}\text{ molecules} \times \dfrac{\text{1 mol }}{6.022 \times\ 10^{23} \text{molecules}} = \textbf{15.4 mol}$

5 0

3 years ago

3. How many grams of potassium permanganate will react with 36 grams of iron(III)<br>hydroxide?

Mrac [35]

7 would be correct because I divide it

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3 years ago

Which new diagnosis would prompt the provider to discontinue a prn order for magnesium hydroxide? group of answer choices renal

dusya [7]

Renal failure is the new diagnosis that the provider would prompt to discontinue a PRN order for magnesium hydroxide.

<h3>What is Renal failure?</h3>

Renal failure is a special condition where the person is unable to manage the function of the kidney organ.

The magnesium hydroxide may cause renal failure because this salt must be eliminated by the kidney and therefore it may trigger health complications.

In conclusion, renal failure is the new diagnosis that the provider would prompt to discontinue a PRN order for magnesium hydroxide.

Learn more about Renal failure here:

brainly.com/question/20404873

#SPJ1

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2 years ago