Astudent measured the ph of four solutions. which ph indicates the lowest hydronium ion concentration?

1.4

4.5

7.0

10.3

The correct answer is 10.3

Explanation:

pH is defined as the negative logarithm of hydrogen or hydronium ion concentration. It is represented by the chemical equation:

From the above equation, it is visible that hydrogen ion concentration and pH are inversely proportional. So, for more hydrogen ion concentration, the value of pH will be low and vice-versa.

pH scale ranges from 0 to 14. For acidic solution, the pH ranges from 0 to 6.9. for basic solutions, the pH ranges from 7.1 to 14. For neutral solution, the value of pH is 7.

We are asked the value of pH which indicates the lowest hydronium ion concentration. So, the solution having high pH value will have the lowest hydrogen or hydronium ion concentration.

Hence, the correct answer is 10.3

idk

explanation:

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.