The number of moles of one substance given the amount in mass can be calculated by the use of the molar mass. This is the mass of a compound per 1 mol of the said substance. For, KCl the molar mass is 74.55 g/ mol
148 g / 74.55 g/mol = 2 mol KCl
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Answer:
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The sealed bottle would have the highest concentration of Carbon Dioxide because the pressure is highest and there was no time for diffusion.
Answer:
The average height of the sunflower sprouts at the end of week 3 is 12.0
cm.
The average height of the birch sprouts at the end of week 3 is 7.2
cm.
Explanation:
they showed it on edgu