A toothpaste contains 0.258 % by mass sodium fluoride used to prevent dental caries and 5.2 % by mass KNO3, which decreases pain sensitivity. One tube contains 119 g of toothpaste. How many grams of sodium ion, Na+, are in 2.30 g of toothpaste? I can't figure out the conversion factors to get to the grams of Na+...I keep getting the wrong answer. Can you please explain? Thanks. :)
A toothpaste contains 0.258 % by mass sodium fluoride used to prevent dental caries and 5.2 % by mass KNO3, which decreases pain sensitivity. One tube contains 119 g of toothpaste. How many grams of sodium ion, Na+, are in 2.30 g of toothpaste? I can't figure out the conversion factors to get to the grams of Na+...I keep getting the wrong answer. Can you please explain? Thanks. :)
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
Problem 3.3PAE
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A toothpaste contains 0.258 % by mass sodium fluoride used to prevent dental caries and 5.2 % by mass KNO3, which decreases pain sensitivity. One tube contains 119 g of toothpaste.
How many grams of sodium ion, Na+, are in 2.30 g of toothpaste?
I can't figure out the conversion factors to get to the grams of Na+...I keep getting the wrong answer. Can you please explain? Thanks. :)
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