The answer would be B. <span>One atom of sodium and one atom of fluorine</span>
Answer:
Sodium
Hydrogen
Carbon
Oxygen
Explanation:
Formula of baking soda is NaHCO₃. It is the salt consist of sodium (Na⁺) cation and bicarbonate (HCO₃⁻) anion. It is also called sodium hydrogen carbonate. It is crystalline white solid.
Elements in baking soda:
Sodium:
Sodium is present in third period and group one of periodic table. It is eleventh element of periodic table. It is alkali metal and lose one valance electron thus carry +1 charge.
Hydrogen:
It is first element of periodic table. Its atomic number is one and mass is 1.008 g/mol. It can lose its one electron and has +1 charge.
Carbon:
It is present in the group fourteen of periodic table. It can lose its four valance electrons and form four covalent bonds. Its atomic number is six and atomic weight is twelve.
Oxygen:
It is the eighth element of periodic table. It is present in group sixteen and second period of periodic table. It has six valance electrons. It is also called chalcogen because it is ore forming element.
The value of of is 1.7× .
So, option C is correct one.
Calculation,
Number of moles of = mass/molar mass = 0.45/278.1 = 1.618× moles
Concentration of and ion
Molarity of = Number of moles of solute /volume in lit
Molarity of = 1.618× moles /0.1 lit = 0.0162 M
→ + 2
For certain amount of , twice this amount of ion formed.
The concentration of ion formed = 2× 0.0162 M = 0.0324 M
Now,
of = [ ] = 0.0162 × = 1.7× .
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When Salt is dissolved into a water solvent; Yes, it can be extracted through evaporation. It retains its original properties: Choice C.
The salt when dissolved in water solvent forms a solution.
They can be separated by boiling the mixture.
The solution formed is a mixture which can be separated by evaporation of water molecules do that the salt is left in the heating chamber.
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