Respuesta :
Answer:
option D is correct that is 8.2 g
Explanation:
Data Given:
mole of NaCl = 0.14 mol
Volume of water = 1 L
Weight of Nacl = ?
Solution:
In this we know the amount of NaCl and to find weight of NaCl to form a solution.
So,
Formula Used
no. of moles = weight in g / Molar mass . . . . . . . . . . (1)
Molar mass of NaCl = 23 + 35.5
Molar mass of NaCl = 58.5 g/mol
Rearrange equation (1)
no. of moles = weight in g / Molar mass . . . . . . . . . . (1)
weight of Nacl = no. of moles x Molar mass . . . . . . . . . . (2)
Put values in the Equation 2
weight of Nacl = 0.14 mol x 58.5 g/mol
weight of Nacl = 8.2 g
weight of Nacl = 8.2 g
So option D is correct that is 8.2 g
