Answer:
pure water, pH = 7.0 (Neutral)
lake water, pH = 6.5 (Acidic)
baking soda solution, pH = 9 (Alkaline)
soapy water, pH = 12 (Alkaline)
Explanation:
The degree of acidicity or alkalinity of a solution can be determined on a pH meter. A pH below 7 is acidic; a pH of 7 is neutral; a pH value of above 7 is alkaline.
NEUTRAL pure water, pH = 7.0
ACIDIC lake water, pH = 6.5
BASIC baking soda solution, pH = 9
BASIC soapy water, pH = 12
135 kPa
Ans
the mantle
5.50 moles of magnesium oxide is 221.6742 grams
to do this you multiply the number of moles by the molar mass
