Respuesta :
Answer:
188 grams
Explanation:
molarity = moles per litre
0.320 moles=1 litre
number of moles in 6 litres = (0.320×6)÷1
=1.92 moles
mass=moles ×relative molecular mass
1.92×(2+32+64)= 188
answers= 188 grams
Answer:
The correct answer is 188 grams
The chemist should dissolve 188 grams of H2SO4 in water.
Further Explanation
Molarity is the concentration of a solution in moles per liter. It is calculated by dividing the number of moles of a solution, n by its volume in liters, V. That is; Molarity = n/V
When given the molarity of a solution and the volume of the solution then we can get the number of moles, by multiplying the molarity by volume; n = MV.
The number of moles of a compound or an element can also be calculated by dividing the mass of the compound by its relative molecular mass.
In this case, we are given; volume = 6.00 L and Molarity = 0.320 M
Therefore, we can calculate the number of moles by multiplying volume and molarity.
Number of moles = 6.0 L × 0.320 M
= 1.92 moles
Relative molecular mass of H2SO4 is 98.079 g/mol
Mass of the solution = moles × relative molecular mass
= 1.92 moles × 98.079 g/mol
= 188.312 g
≈ 188 g
Learn more about
- Molarity; https://brainly.in/question/1159016
- Molarity, moles and volume conversions; https://brainly.com/question/12834126
Answer details
Grade: High school
Subject: Chemistry
Chapter: Stoichiometry
Keywords: Molarity, moles, molecular mass and volume.
