Chemistry, asked by shreya28gangadhar, 1 year ago

Calculate the number of atoms in 4.8 gram of mg. (mg = 24u)...

Answers

Answered by navneetcom122
1

in order to go from mass of magnesium to atoms of magnesium, we have to do two things:

   Convert mass of Mg to moles of Mg using the molar mass of Mg as a conversion factor

   Convert moles of Mg to atoms of Mg using Avogadro's number (6.02×1023) as a conversion factor

Step 1:

Before we start, I should note that the molar mass of Mg is 24.31gmol. We can go from mass to moles using dimensional analysis. The key to dimensional analysis is understanding that the units that you don't need any more cancel out, leaving the units that are desired:

48.60g

×1mol24.31g =2.00mo


shreya28gangadhar: Thanks a lot!!
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