Sodium reacts with chlorine to form the compound sodium chloride, or salt. The chemical formula below shows how the two elements combine into a compound.
2Na + C*l_{2} -> 2NaCl
If the total mass of the reactants is 58.44 amu, what will be the total mass of the products?
(1 point)
O 60 amu
O 29.22 amu
58.44 amu
O116.88 amu
The total mass of the products can be determined by examining the coefficients in front of each compound in the chemical equation.
In this case, the coefficient in front of NaCl is 2, indicating that there are 2 moles of NaCl formed for every 2 moles of Na and Cl₂ reacted.
The molar mass of NaCl is 58.44 amu (which is the same as the total mass of the reactants). Therefore, the total mass of the products is also 58.44 amu.
So, the correct answer is 58.44 amu.
The balanced chemical equation for the reaction between sodium and chlorine is:
2Na + Cl2 -> 2NaCl
According to the law of conservation of mass, the total mass of the reactants must be equal to the total mass of the products.
Given that the total mass of the reactants is 58.44 amu, we can determine the total mass of the products using the balanced equation.
The molecular weight of sodium (Na) is 22.99 amu, and the molecular weight of chlorine (Cl2) is 35.45 amu.
For 2 moles of sodium (2Na), we have a total mass of (2 moles Na) x (22.99 amu/mole Na) = 45.98 amu.
For 1 mole of chlorine (Cl2), we have a total mass of (1 mole Cl2) x (35.45 amu/mole Cl2) = 35.45 amu.
Adding the masses of sodium and chlorine, the total mass of the reactants is 45.98 amu + 35.45 amu = 81.43 amu.
Therefore, based on the balanced equation, the total mass of the products would also be 81.43 amu.
Therefore, the correct answer is:
O 81.43 amu
To determine the total mass of the products, we need to calculate the total mass of sodium chloride (salt) formed. From the balanced chemical equation, we can see that 2 moles of sodium (2Na) react with 1 mole of chlorine (Cl₂) to form 2 moles of sodium chloride (2NaCl).
To calculate the total mass of sodium chloride, we need to know the molar masses of sodium (Na), chlorine (Cl), and sodium chloride (NaCl). The molar mass of an element or compound is the sum of the atomic masses of its constituent atoms.
The atomic mass of sodium (Na) is 22.99 amu, chlorine (Cl) is 35.45 amu, and sodium chloride (NaCl) is 22.99 amu + 35.45 amu = 58.44 amu.
Since the balanced equation shows that 2 moles of sodium chloride are formed, we multiply the molar mass of sodium chloride (58.44 amu) by 2:
Total mass of sodium chloride = 2 * 58.44 amu = 116.88 amu
Therefore, the correct answer is:
O 116.88 amu