Question

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A sample of V weighs 31.5 grams. Will a sample of Na that contains the same number of atoms weigh more or less than 31.5 grams? (more, less): Red Calculate the mass of a sample of Na that contains the same number of atoms. grams of Na Submit Answer Retry Entire Group 8 more group attempts remaining

Answer 1

Homil moss of V=50-94154 ond Na - 22.9890 50 9415 9 of u has 6.022x10 23 atoms (according to mole and Avagadro number of arom concept). : 31.59 of v has a atoms a: 3)-5x 6.022x10°3 = 3.723 xidgromno 50.9415 22.9899 of Na has 6.022x10 23 atoms . 31.5g of Na has y number of atoms 4. 31.5x6.022x1043 8.251x10 23 atoms. Similarly, 22.9899

22.9899 of Na has 6.022x 1023 atoms i. 29 of Na has 3.723 x 1023 atoms 2. 3.723x1013x 22.989 = 1422 59 of Na has 6:022 X 2013 same no. of atoms as 31.5g of v

From the calculations seen in both the image, we see that, 14.212 g of Na is having same number of atoms as that of 31.5 g of V.

Thus, the sample of Na that contains same number of atoms weigh less than 31.5 g of V that has same number of atoms.