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by Chris Tai 1B
Wed Oct 02, 2019 11:57 am
Forum: Molarity, Solutions, Dilutions
Topic: G.5 Concentration Calculation
Replies: 4
Views: 92

Re: G.5 Concentration Calculation

When you're trying to find the volume needed to get moles of Na+, it's best to use the equation Molarity = moles/Volume. You know that the number of moles of Na2CO3 in the given amount of grams is 2.111g/106gmol^1 = 0.01992. You can then calculate the molarity of Na2CO3 within the given 250 mL solut...
by Chris Tai 1B
Wed Oct 02, 2019 12:14 am
Forum: Molarity, Solutions, Dilutions
Topic: Fundamentals #G5
Replies: 2
Views: 52

Fundamentals #G5

A student prepared a solution of sodium carbonate by adding 2.111 g of the solid to a 250.0-mL volumetric flask and adding water to the mark. Some of this solution was transferred to a buret. What volume of solution should the student transfer into a flask to obtain (a) 2.15 mmol Na+; (b) 4.98 mmol ...

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