What does the 4 mean in the formula 4Na2SO3?
2 answers:
Answer: 4 moles of
Explanation: The given compound is an ionic compound formed by combination of sodium as a metal and sulphite as polyatomic anion.
It is formed by the combination of and
.
Thus 1 mole of contains 2 atoms of sodium, 1 atom of sulphur and 3 atoms of oxygen.
The 4 represents that 4 moles of are present which contains 8 atoms of sodium, 4 atom of sulphur and 12 atoms of oxygen.
Answer:
The '4' in front of sodium sulfate formula indicates that there are four molecules of sodium sulfate.
Explanation:
The 4 in formula is the coefficient of the compound.this 4 denoted that there are 4 molecules of sodium sulfate.
Number of sodium ion in single molecule = 2
Number of sulfate ions in single molecules = 1
Number of sodium ion in four molecule = 2 × 4 = 8
Number of sulfate ions in four molecules = 1 × 4 = 4
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Answer:
a = 1.055 x 10¹⁷ m/s²
Explanation:
First, we will find the force on electron:
where,
F = Force = ?
E = Electric Field = 6 x 10⁵ N/C
q = charge on electron = 1.6 x 10⁻¹⁹ C
Therefore,
F = 9.6 x 10⁻¹⁴ N
Now, we will calculate the acceleration using Newton's Second Law:
where,
a = acceleration = ?
m = mass of electron = 9.1 x 10⁻³¹ kg
therefore,
<u>a = 1.055 x 10¹⁷ m/s²</u>