Please Help me if you can!:) i appreciate anything. 1. What is the mass of 3.32 mols of N2 2. How many molecules

Question

Please Help me if you can!:) i appreciate anything.

1. What is the mass of 3.32 mols of N2

2. How many molecules are in 4.67 mols of H2O

3. How many Sodium atoms are in 2.00 mols of Na2O

4. What is the mass of 3.57 mols of NaOH

5. How many mols are in 57g of H2O

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Xavia 4 years 2021-08-20T09:02:36+00:00 1 Answers 17 views 0

Answers ( )

  1. Jezebel
    0
    2021-08-20T09:03:51+00:00
    Reply

    Explanation:

    1

    Number of nucleon =

    Molarmassofnucleon

    Massofatom

    =

    1.6726×10

    −24

    g/nucleon

    3.32×10

    −23

    g

    =19.8=20(approximately)

    It is given that element comprises of 2 atoms

    Hence,number of nucleon = 2×20=40

    2

    You have 4.70 mol H2O

    There are two H atoms in 1 molecule H2O.

    Therefore, there must be 2*4.70 = 9.40 mols H in 4.70 mols H2O.

    How many mols O in 4.70 mols H2O? That’s 4.70 mols, of course.

    Said another way, you have 2 mols H for every 1 mol H2O and 1 mol O for every 1 mol H2O.

    So for 50 mols H2O you have 100 mols H and 50 mol O.

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