Consider the following acid/base reaction CO2−3 + 2 H+ → H2O + CO2
that produces CO2 gas. 7.8 L of CO2 is
collected at STP. What is the molarity of the
HCl solution used in the reaction if 123 mL of
HCl was needed?
Answer in units of M.

a) the particles of the chair are strongly held together.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

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