PPT-Molarity

Derived units Density is g mL Area m x m m 2 Molarity molar concentration concentration mole litre molL or M for short It is the number of moles per litre c molar concentration in molL. Phys. Chem. 3807 Houston, Houston, Texas 77204-5641 Technology, Cambridge, Massachusetts and George Whitesides* Cambridge, Massachusetts Form: October for diffusion-controlled reactions Introdu n V C = concentration (moles/L= molarity) V = volume of solution in L 1. In 10.0 mL of a certain solution, there are 0.050 g of KF. Find the molarity of the solution (moles/L) 0.050 g KF(mole/ 2. , . Dilution. cdurakovic@ius.edu.ba. Molarity. Molarity. is the number of moles of solute dissolved in one . liter. of solution. The units, therefore are . moles per . liter. , specifically it's moles of solute per . Molarity The concentration of a solution is a measure of the amount of solute that is dissolved in a given quantity of solvent. – A dilute solution is one that contains a small amount of Mechanisms. C483 Spring 2013. Questions. 1. . Replacement of the amino acid ________ at or near an active site of an enzyme is more likely to change enzyme activity than the replacement of ________ at or near the active site.. SOLUTIONS & CONCENTRATIONS. WHAT IS A SOLUTION ?. WHAT IS CONCENTRATION & HOW IS IT MEASURED ?. IS DISSOLVING A CHEMICAL OF A PHYSICAL PROCESS ?. IF SUGAR IS DISSOLVED IN WATER IS ITS CHEMICAL NATURE CHANGED ?. How do we indicate how much of the electrolytes are in the drink?. Concentrated versus Dilute. solute. solvent. Lower concentration. Not as many solute (what’s being dissolved) particles. Higher concentration. a pH value tells us how much H. +. is in a solution. It can be defined by: pH = - log[H. +. ] (log is to base 10). . . (Also note, square brackets are used to denote concentration values); For example: pH = -log[10. Concentration. The amount of a specific substance in a known volume of solution. Concentrated Solutions. The amount of substance dissolved in solution is very high . It is difficult to dissolve more substance into solution. Ex. 1. What is the molarity of a solution that was prepared by dissolving 11.5g of solid sodium hydroxide in 1.50L of water?. Ex. 2. Calculate the molarity of a solution prepared by dissolving 1.56g of gaseous HCl in enough water to make 26.8 mL of solution.. Molarity and Dilutions. E.Q.: . How is the concentration of a solution calculated . (. molarity)?. Molarity. Molarity. – . Measurement of the concentration of a solution (how much solute is in a volume of solution). Standard Deviation. Standard Deviation – measure . how spread out the data is from the mean. Lower standard deviation:. Data is . closer to the mean. Greater likelihood that the independent variable is causing the changes in the dependent variable. Water as a . Polar Solvent. Water is a polar molecule. since it has uneven electron distribution . and a bent molecular shape.. Due to its polar nature, water interacts strongly with its solutes and often plays an active role in aqueous reactions.. Molarity = moles of solute / Liters of solution. Concentration. ~How much solute is present in a solution compared to the solvent.. Molarity (M)- moles of solute per liter of solution. M = mol/L. 2.1 M AgNO.