This water is not good to drink.
9 to 10
Rocks are mainly salts and have a pH of circa 7. Limestone and dolomite are more basic and have a pH of > 7 but <9.
The pH of alka seltzer is approximately 9.2 on the pH scale. Source: Challney High School For Boys Luton Investigation for Neutralistaion
its something used to see whether a substance is an acid or alkali. the scale is as follows 1-3 is a strong acid 4-6 is a weak acid 7 is neutral (distilled water) 8-9 is weak alkali 10-14 is a strong alkali
Because of the logarithmic nature of the pH scale, a single step indicates a difference tenfold. As such, the difference in concentration of hydrogen ions between solutions A and B in this example are a hundred fold, with solution A having a higher concentration than solution B.
I don't think there is one. The pH scale only goes up to 7.
9 to 10
The pH scale for eggs is about 9.
The pH of dettol is 4-9 so it takes up most of the pH scale.
Around 8 to 9.
Most natural lake waters range from PH=6 to 9
Rocks are mainly salts and have a pH of circa 7. Limestone and dolomite are more basic and have a pH of > 7 but <9.
Alka-Seltzer has a pH of around 9, so the pH itself won't kill you. Whatever is in it making it have that pH might.
the pH for washing up liquid is 9.4 on the pH scale
The pH of toilet cleaners will vary greatly depending on what it is. Most toilet cleaners have a pH between 9 and 13, which is high.
pH = 4 is mildly acidic. The pH scale is [H = 1 strongly acidic pH = 4 mildly acidic pH = 7 neutral ( Water) pH = 9 mildly alkaline pH = 14 strongly alkaline.
pH and pOH are logarithmic functions. pH 3 has pOH = 11pH 9 has pOH = 5.The difference in [OH-] is 6 which on a log scale means 10^6 or 1 million times more OH- at pH 9 compared to pH 6.