1) 1. How many ATOMS of sulfur are present in 4.30 moles of sulfur dioxide ? ato

Question

1) 1. How many ATOMS of sulfur are present in 4.30 moles of sulfur dioxide ?
atoms of sulfur.


2. How many MOLES of oxygen are present in 1.91×1022 molecules of sulfur dioxide ?
moles of oxygen.

2) 1. How many MOLECULES of carbon tetrafluoride are present in 1.45 moles of this compound ?
molecules.


2. How many MOLES of carbon tetrafluoride are present in 1.07×1023 molecules of this compound ?
moles.

3) 1. How many MOLECULES of phosphorus triiodide are present in 2.80 moles of this compound ?
molecules.


2. How many MOLES of phosphorus triiodide are present in 1.08×1023molecules of this compound ?
moles.

3) 1. How many ATOMS of sulfur are present in 8.41 grams of sulfur dioxide?  atoms of sulfur .


2. How many GRAMS of oxygen are present in 1.91×1022 molecules of sulfur dioxide ?  grams of oxygen

4) 1. How many MOLECULES of carbon tetrafluoride are present in 1.91 grams of this compound ?  molecules.


2. How many GRAMS of carbon tetrafluoride are present in 1.07×1023 molecules of this compound ?  grams.

5) 1. How many MOLECULES of phosphorus triiodide are present in 4.98 grams of this compound ?  molecules.


2. How many GRAMS of phosphorus triiodide are present in 1.08×1023molecules of this compound ?  grams.

6)
What is the mass of a sulfur dioxide molecule ?
grams

7)What is the mass of a carbon tetrafluoride molecule ?
grams

8)What is the mass of a phosphorus triiodide molecule ?
grams

9)1. How many GRAMS of sulfur are present in 4.30 grams of sulfur dioxide ?
grams sulfur.


2. How many GRAMS of sulfur dioxide can be produced from 1.69 grams ofoxygen ?
grams sulfur dioxide.

10)1. How many GRAMS of cobalt(II) are present in 1.36 grams of cobalt(II) sulfite ?
grams cobalt(II).


2. How many GRAMS of cobalt(II) sulfite can be made from 4.90 grams ofcobalt(II) ?
grams cobalt(II) sulfite.

11)1. How many GRAMS of chromium(II) are present in 2.74 grams ofchromium(II) chloride ?
grams chromium(II).


2. How many GRAMS of chromium(II) chloride can be made from 4.92 grams ofchromium(II) ?
grams chromium(II) chloride.

Explanation / Answer

1)How many ATOMS of sulfur are present in 4.30 moles of sulfur dioxide ?
atoms of sulfur.
ans :0.067mole

2) How many MOLES of oxygen are present in 1.91×10^22 molecules of sulfur dioxide ?
ans : 6.3 moles of oxygen

1. How many MOLECULES of carbon tetrafluoride are present in 1.45 moles of this compound ?

ans: 1.45*6.023*10^23 = 8.733*10^23

How many MOLES of carbon tetrafluoride are present in 1.07×10^23 molecules of this compound ?

ans: 0.177

1. How many MOLECULES of phosphorus triiodide are present in 2.80 moles of this compound ?

ans : 16.86*10^23

How many GRAMS of phosphorus triiodide are present in 1.08×10^23molecules of this compound ?

ans : 73.69gram

What is the mass of a sulfur dioxide molecule ?

ans : 64.06/(6.023*10^23)gram = 10.63*10^-23

)What is the mass of a carbon tetrafluoride molecule ?

ans : 14.61*10^-23

WE HAVE STRICT INSTRUCTION, NOT TO ANSWER FOR THE MORE NUMBER OF QUESTIONS IN SAME TAG

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