Chemistry, 17.12.2020 22:20 brittanyowusu1820

The label on a chemical in a science laboratory reads, “Strong Acid.” Based on this label, what can a student best determine about the chemical? A. It has a low pH.
B. It is a clear liquid.
C. It has a high density.
D. It has a low melting point.

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Answer from: anasstasiyashpa

A. It has a low pH.

Explanation:

Answer from: mhaniyahn

A. It has a low pH

Explanation:

pH scale is 0 to 14 with 7 being neutral. Any thing below 7 is acidic Above 7 is a base or alkaline

Lower the pH the more careful you must be when handling the chemical. Strong Acid can do irreparable harm to eyes, skin, mucus membranes, eat holes in clothing etc. USE APPROPRIATE PPE

Below is pasted in definition you can look up in your textbook or online search.

pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

Answer from: Quest

you didnt put any of the following

Answer from: Quest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

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The label on a chemical in a science laboratory reads, “Strong Acid.” Based on this label, what can...

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