Question

B- Number of Atoms in 10 gram of Cr(NO3)s.

Answer 1

ben op Atoms in logam pCCNO, It a compound has a weight equal to it's moleculer weight, then it contains Avagadoo number of atoms. 23 Avod gadro number is 6.023 xlo molecules Molecular weight of cr CNO3) CONGO Cs - 51.996 Ng NS OS 5x 14.0067 15x 15.999 - 51.99610 = 70.03350 - 239.9850 362.01469 o there u- aim.u. Gearpal I 362.0146g of CEONO) is present then we so can say that Imole of CECNOgge is present. That means 362.0146g of recreals contains 6.023x10 number of molecules.

logo + Pochode contains how many molecules, 362.0146g a ...3 6.023x10 molecules log - ? x 362.01469 = 6.023x lo molecule) x log 32 6.023x lo molecules x 198 362.01468 2.4 = 0.0166374 505 xlo molecules i log op C&CN) contains 0.0166374505 x 1024 molecules Number of atoms in one molecule Cr(NO3) = Co Ng 15 1+5+15 21 atome Imolecule contains 21 atom, 0.0166374505 xiomolecule contains ? I molecule o 21 atome 0.0166374505x10 molecule --- ?

e molecule = 21 atome x 0.0166374505X10 2 molecular 21 atom 9.4 X 0.0 66374505 xlo malerules Imolecule 9 = - Number 24 0.349 38 64612 X10 atoms 3,493.864 612 X 1020 atoms of atoms in log of COCNO) are 3,493. 8 64 612 x 10 atoms grams in De number of 10 atoms of er CNO3), I molecule contains sal atoms Imole contain! 6.023x10 x 21 atoms That meant 2.3 6.023X10 X 21 atoms. 10 362.04169 contains contain 10 atome

362.0416g 6 .023x10x21 atoms 7 10 atoms 7 ? x 10 atoms = 6.023x10 falaton X 360.0416g → 9 6.023x10 xajatomi x36704169 10 atoms 23 - 45,792. 1076928 No ido To 23 362.4169 x lo atomi = 6.0 2 3X10 x2lator ? 362.0416 8 x 10 atome 6.023 x 1023 x 21 atome 1023 362.0416 x 10 x 10 g 6, 126.483 -13 2.86 23735996 Xlog

present i in 10 atome of Co CNoz) are 2.8623 735996 xlog -13