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WikiCards · Card list · Science cards · PH
Rare card · Science
PH, a Rare card
In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.
- Rarity
- Rare
- Domain
- Science
- ATK
- 77
- DEF
- 72
- Power
- 149
- Wikipedia reads a year
- 440,000
Power 149 (ATK + DEF): stronger than 80 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- Acidic solutions are measured to have lower pH values than basic or alkaline solutions.
- While the origin of the symbol 'pH' can be traced back to its original inventor, and the 'H' refers clearly to hydrogen, the exact original meaning of the letter 'p' in pH is still disputed, it has since acquired a more general technical meaning that is used in numerous other contexts.
- The pH scale is logarithmic and inversely indicates the activity of hydrogen cations in the solution pH = − log 10 ≈ − log 10 where [H+] is the equilibrium molar concentration of H+ in the solution.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The PH article was read about 440,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 77 and blocks with 72: each hit it takes is cut by 29 %.
How to get PH
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below PH in the power ranking, all domains together.
- Search engineEpic · Arts · ATK 80 DEF 69
- HedgehogEpic · Nature · ATK 72 DEF 77
- IshmaelRare · Arts · ATK 76 DEF 73
- BuckwheatRare · Nature · ATK 71 DEF 78
- Run-DMCRare · Arts · ATK 77 DEF 72
- British IslesRare · Nature · ATK 85 DEF 64
Card lists
- All cards from A to ZEvery card, by name
- Nature cards600 cards
- Science cards600 cards
- History cards600 cards
- Arts cards600 cards
- Society cards600 cards
- Tier listS and A tiers by power (ATK + DEF)
- Legendary cards136 cards
- Epic cards262 cards
- Strongest cardsTop 100 by attack
Credits
Text : Wikipedia, PH (revision), CC BY-SA 4.0. Photo : Alvy16, CC BY 4.0, Wikimedia Commons.
