Here are the essential concepts you must grasp in order to answer the question correctly.
Milliequivalents (mEq)
Milliequivalents (mEq) is a unit of measure used in chemistry and medicine to express the amount of a substance based on its chemical activity. It accounts for the valence of ions, allowing for the comparison of different ions in terms of their ability to react. For example, 1 mEq of Na⁺ is equivalent to 1 mEq of Cl⁻ because both have a valence of 1.
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Electroneutrality Principle
The electroneutrality principle states that in a solution, the total positive charge must equal the total negative charge. This principle is crucial for calculating ion concentrations in solutions, as it ensures that the solution remains electrically neutral. In this case, the concentration of Na⁺ must balance the concentrations of Cl⁻ and HPO₄²⁻ to maintain electroneutrality.
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The following is an endothermic reaction where Kc = 6.73 x 103.For each of the choices below predict in which direction the reaction will proceed
Ion Concentration Calculation
Calculating ion concentration involves determining the amount of each ion present in a solution, often using the concept of equivalents. In this scenario, the total negative charge from Cl⁻ and HPO₄²⁻ must be matched by the positive charge from Na⁺. By applying the known concentrations of the anions, one can derive the required concentration of Na⁺ to achieve balance.
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