V₁=4.8 l
c₁=2.5 moles/l
c₀=6.0 moles/l
v₀-?
v(H₂O)-?
n(H₂SO₄)=v₁c₁=v₀c₀
v₀=v₁c₁/c₀
v₀=4.8·2.5/6=2.0 l
v(H₂O)=v₁-v₀
v(H₂O)=4,8-2.0=2.8 l
you need to take 2.0 liters of solution (6.0 M H₂SO₄) and 2.8 liters of water
The pulp and rind (zest) are also used in cooking and baking. The juice of the lemon is about 5% to 6% citric acid, with a pH of around 2.2, giving it a sour taste. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie.
1. D (explanation is shown in the picture above)
2. A,B&E are diatomic molecules in standard conditions.