Respuesta :
A solution prepared by dissolving 47.54 g of NaCl in 174.6 g H2O has a mass percentage (m ÷ m) of 57.27%
What is mass?
Mass is the total amount of matter in a physical body.
The strength of an object's attraction to another object is also affected by its mass. The primary unit of mass in SI kilogram. The amount of matter that makes up an object or object is the best way to understand mass. Everything you see has mass. Examples of objects with mass are tables, chairs, beds, soccer balls, glasses, and air.
m (NaCl) = 55.84 g and m (H2O) = 157.2 g.
m (solution) = m (NaCl) + m (H₂O)
w(NaCl) = 100 m(NaCl) ÷ m(solution) = 100 m(NaCl)/(m(NaCl) + m(H₂O)
w ( NaCl ) = 100 × 47.54 / ( 47.54 + 174.6 ) = 57.27%
Therefore, the mass percentage (m ÷ m) of a solution prepared by dissolving 47.54 g of nacl in 174.6 g H2O is 57.27%
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