Answer:
K⁺ and HPO₄²⁻ ions are present in K₂HPO₄
Explanation:
K₂HPO₄ consist of anion and cation such as HPO₄²⁻ and K⁺. We can see that the charge on HPO₄²⁻ is negative 2. Thus inroder to balance the charge and to neutral the compound two potassium ions are attached because the charge on one atom of potassium is K⁺.
Properties of K₂HPO₄ :
It is salt of phosphoric acid.
Its density is 2.44 g/cm³.
It is odourless compound.
It is white powder and soluble in water.
It is used in fertilizer because it provide phosphorus which is beneficial for the growth of plants.
It is also used as a additive in food.
It is inorganic compound and also used as buffering agent.
Answer:
The definition of a resin is a thick and sticky clear substance made from plants or trees that is used to make plastics, pills, lacquers, inks, glues and other things. An example of a resin is the material rubbed onto the strings of a violin bow to make it easier to use.
Explanation:
The # of equivalents of OH in NaOH is the number of moles of OH divided by its valence.
Molar mass of the NaOH = 40 g/mol
# of moles of NaOH = 40 g/ 40 g/mol = 1 mol
Valence of OH = 1
# Equivalents of OH = 1 /1 = 1 equivalent.
Answer: 1