Question

<Week 12 Gases part 2 and Solutions Units of Concentration: Molarity and Mass Percent 41 of 73 > * Review Constants Periodic Table Gastric acid pH can range from 1 to 4, and most of the acid is HCL For a sample of stomach acid that is 3.16-10-2 Min HCI, how many moles of HCI e in 19.8 ml of the stomach acid? Express the amount to three significant figures and include the appropriate units. View Available Hints) The concentrations of solution are typically described as a ratio of the amount of solute over the amount of solution. You may already be familiar with molarity (M), which is equivalent to the moles of solute over the liters of solution. Another measure of concentration, the mass percent of a solution, can be expressed as the grams of solute in one hundred grams of solution (% or wt%). Concentration values can serve as conversion factors that allow you to convert between the amount of solute and its corresponding amount of solution. Examples of units of concentration are shown below for an equivalent ratio of potassium iodide (KI) amount over solution amount Conventional Converts Concentration expression of between the ratio + ? HÅ XXD x-100 amount of HCI Value Units