Homework Answers
Solution
E. 3.32 × 1023
We know that according to Avogadro number
1 mole contains 6.023 × 1023 atom
So 0.552 mole contains
Number of atoms = Mole × Avogadro number
Number of atoms = 0.552 mole × 6.023 × 1023 atoms/mole
Number of atoms = 3.32 × 1023 atoms
3.32 × 1023 iron atoms are present in 0.552 mole of iron.
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45) How many iron atoms are present in 0.552 mol of iron? A) 27.98 y old sobilo B) 2.798 x 1024 bolsoba C) 55.85 D)...
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explanation please
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all 25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom...
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6. How many atoms of iron are there in a piece of iron thin foil measuring...
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explanation please
8) How many molecules are present in 4.25 mol of CC14? A) 9.26 x 1024 molecules (B)2.56 x 1024 molecules C) 653.69 molecules D) 153.81 molecules E) 3.69 x 10-23 molecules 9) How many molecules are there in 3.00 moles of NH3? A) 1.00 molecules B) 3.00 molecules C) 17.00 molecules D) 1.20 x 1024 molecules E1.81x 1024 molecules 10) How many molecules are present in 3.25 mol of C2H60? A) 3.25 molecules B) 46.0 molecules C) 1.85...
all
25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F:) - NaF(s) + Cl() A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg()...
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what is the predicted product from the following combination
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