If 50 ml of hydrochloric acid is neutralized using 10.0 ml of 2.0 M sodium hydroxide. How many moles of hydrochloric acid were neutralized? What is the molar concentration (moles/liter) of the hydrochloric acid?

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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