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OpenStudy (anonymous):
A salt crystal has a mass 0.14mg,How many NaCl formula units does it contain? Express your answer using two significant figures.
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OpenStudy (chmvijay):
what is molecular weight of NaCl can u tell
OpenStudy (chmvijay):
LOL :)
OpenStudy (chmvijay):
58.44 g of NaCl contains =6.023 *10^23 molecules of the NaCl then mean0.00014 gram(0.14mg ) of = 0.00014*6.023*10^23 /58.44
OpenStudy (anonymous):
thank you!! could you help me with another lol
OpenStudy (anonymous):
How would I write sodium carbonate and lead (II) nitrate, write as a complete ionic equation and as a net ionic equation, thank you soooo much for your help!!!
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