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About 112 g of KOH dissolve in 100 mL water at room temperature, which contrasts with 100 g/100 mL for NaOH. [14] Thus on a molar basis, KOH is slightly more soluble than NaOH. Lower molecular-weight alcohols such as methanol , ethanol , and propanols are also excellent solvents .
In chemistry, acid value (AV, acid number, neutralization number or acidity) is a number used to quantify the acidity of a given chemical substance.It is the quantity of base (usually potassium hydroxide (KOH)), expressed as milligrams of KOH required to neutralize the acidic constituents in 1 gram of a sample.
Bettas are also affected by the pH of the water: a neutral pH of 7.0 is ideal, but slightly higher levels are tolerable. [34] Due to their labyrinth organ, bettas can endure low oxygen levels, but cannot survive for long in unmaintained aquaria, as poor water quality makes all tropical fish more susceptible to diseases like fin rot, [35] or ...
The best known Betta species is B. splendens, commonly known as the Siamese fighting fish and often kept as an aquarium pet. Characteristics All Betta species are small fishes, but they vary considerably in size, ranging from under 2.5 cm (1 in) total length in B. chanoides to 14 cm (5.5 in) in the Akar betta ( B. akarensis ).
A betta fish's feeding habits will be based on the temperature of its environment. The tank water should be around 78 to 82 degrees Fahrenheit, according to Aquatic Veterinary Services. If the ...
Total alkalinity is not (much) affected by temperature, pressure, or pH, and is thus itself a conservative measurement, which increases its usefulness in aquatic systems. All anions except HCO − 3 and CO 2− 3 have low concentrations in Earth's surface water (streams, rivers, and lakes). Thus carbonate alkalinity, which is equal to [HCO − ...
Betta pallida [1] is a species of gourami.It is a freshwater fish native to Asia, where it is known only from Thailand.It is typically found in clear, slow-flowing creek environments with a depth of 20 to 50 cm (7.9 to 19.7 inches), a pH of 6.3 to 6.5, a conductivity of 69 to 82 μS/cm, a temperature of 25.5 to 26.6 °C (77.9 to 79.9 °F), and dense leaf litter.
Betta persephone has a limited distribution in Malaysia, the type locality being Ayer Hitam in Johor. This Betta species inhabits soft, acidic waters at temperatures of 23‒28 °C (73‒82 °F). The typical habitat is closed-canopy forest where it is dark on the forest floor and there is thick vegetation on the banks of the blackwater streams ...