Question

Answer this please if u give correct answer I will mark you as brainliest​

Answer 1

Answer:

Step 1: Calculate the mass of H₂O.

mass of H₂O = density of H₂O × volume of H₂O

mass of H₂O = 1.00 g/mL × 251 mL

mass of H₂O = 251 g

Step 2: Calculate the molar mass of each component.

For H₂SO₄

molar mass = (1.008 g/mol × 2) + (32.07 g/mol × 1) + (16.00 g/mol × 4)

molar mass = 98.086 g/mol

For H₂O

molar mass = (1.008 g/mol × 2) + (16.00 g/mol × 1)

molar mass = 18.016 g/mol

Step 3: Calculate the number of moles of each component.

For H₂SO₄

For H₂O

Step 4: Calculate the mole fraction of H₂SO₄.

Solution (2)

Step 1: Calculate the molar mass of each component.

For KBr

molar mass = (39.10 g/mol × 1) + (79.90 g/mol × 1)

molar mass = 119.00 g/mol

For H₂O

molar mass = (1.008 g/mol × 2) + (16.00 g/mol × 1)

molar mass = 18.016 g/mol

Step 2: Calculate the number of moles of each component.

For KBr

Step 3: Calculate the mole fraction of KBr.

Explanation:

hope it's give you some idea