Is there any change of pH level of Hot drinking water and Cold drinking water?
There might be a slight pH difference due to the presence of dissolved minerals in both water sources. Different salts can increase the pH (making it more basic/alkaline) or decrease it (more acidic). Dissolved CO2 found in most water decreases the pH, because CO2 in water exists in equilibrium with carbonic acid and releases hydrogen ions. You could try using litmus or pH paper, but the pH difference—if there is one to begin with—may be too minor for these tools to pick up. Some bottled mineral waters will list the salt content, and might even list the pH, in which case you could infer the relative acidity or basicity of water. If you contact the manufacturer of the bottled water, they might also give you some information. In general the temperature should not have a huge impact, although it’s possible that it could have an effect. Since solubility typically increases with temperature, it’s possible that at low temperatures some basic or acidic salts would be insoluble in water and wo
