2017年10月23日 · You can thus say a solution that has a #"pH"# equal to #6.0# contains #10# times more hydronium cations than a solution that has #"pH" = 7#, i.e. than a neutral solution at room temperature. This, of course, implies that you are dealing with a solution that is slightly acidic , since that is what #"pH" < 7# at room temperature implies.

2017年10月6日 · With a pH of 6, the most likely cause is a low mineral content in your water. You could always get Tetra 6 in one strips. They will test for everything but ammonia. Although if you are spending the money, the Master Test Kit is the way to go in the long run. I strongly discourage using any pH upping products.

Just got abnormal reading PH 6.0 - PH 6.0 Clarity CLEAR Color YELLOW specific gravity 1.020 Glucose N Protein N nitrite Dr_Saleem | Doctor 47,883 Satisfied Customers

1)Calculate the pH of a 0.1M solution of NaOH ,knowing that the volume of the solution is 300mL. 2)Calculate the pH of a 0.3M solution of HCl , knowing that the volume of the solution is 250mL (?) A solution contains #[OH^-] = 4.0 times 10^-5# #M#, what is the concentration of #[H_3O^+]#?

Keeps my pH stable at 6.8-7.2 and KH 3-4 2) 300g goldfish pond with plants. Given the expense of using a liquid substitute in such a larger body of water I opted for the crushed coral route as my pH was constantly dropping below 6.0. My LFS didn't have crushed coral but did have some coral skeletons that thy would sell to me.

2016年9月9日 · pH day 0: tank setup with 100% of tap water (temp was always between 73 and 75F), conditioned with Safe Start and Stress Coat. day 1: pH=7.6, next days I used API pH Down to bring it down but it kept coming back to 7.5+ until after 2 wks I added softening bag. Then in 2 days pH went down to 6-6.2.

2014年5月8日 · To convert a concentration of into pH or pOH take the -log of molar concentration of the hydrogen ions or the molar concentration of the hydroxide ion concentration respectively. pH = -log [ H+] pOH = -log [OH-] For example if the [OH-] = 0.01 M, the -log [0.01 ] = 2.0. This is the pOH. To determine the pH perform the following calculation.

2017年5月27日 · What I want is to add something gradually to the change water than will keep the tank water at a steady pH ( if possible). As mentioned when I add the change water to my tank pH is ~ 6.0 and at the end of the week it drift to about 5.4. the next change the pH the pH issue starts again. I don't care if the water is 5.4 or 6.

2017年5月30日 · CindiL : Question - My tap water pH is 7.0 straight from the tap, my LFS which is a mile away uses the same tap water and maintains a 7.0 in their tanks with no buffers. I can keep a bucket of tap water and the pH maintains 7.0. Since all of the above is true, what would make my pH plunge to 6.4 and cause all of my nitrate to disappear?

2017年3月11日 · What is the concentration of hydroxide ions in a solution that has a pH of 6.0? Chemistry Acids and Bases pH.