CHEM 1127Q Lecture Notes - Lecture 8: Tricalcium Phosphate, Molar Concentration, Scandium
44
CHEM 1127Q Full Course Notes
Verified Note
44 documents
Document Summary
Chem 1127q - lecture 8 - ch. 3 continued: molarity and concentration problems. First figure out how many moles of something there is. You have 0. 265l of 0. 1253 molar fecl 3 . How many liters to get 1. 000 moles. You have 0. 13 m cl - . how much of this stock solution is needed to make 2. 5 l of 0. 05m. (0. 13m) (v 1 ) = 0. 125 moles of cl - You know that ocean water is 4. 00% by mass salt. drinking water should be no more and 2. 00 l of salt water? assume density of salt water is. Find volume from mass of salt, using mass percent of fresh water. 0 ass of water (volume) m mass solution * mass solution * Pick an amount of the substance = 100g is easiest to use. 44. 87 g/mol is very close to 44. 95 g/mol which is the molar mass of.
