Answer:
244 .658 atm
Explanation:
The osmotic pressure is given by:
∏ = CRT
∏ = 10 × 0.0821 × 298
∏ = 244 .658 atm
Oceans, they are larger than ponds hence they possess wider exposure with more number of surface molecules.
Answer is: sodium bicarbonate is the limiting reagent.
Balanced chemical reaction:
3NaHCO₃(aq) + H₃C₆H₅O₇(aq) → 3CO₂(g) + 3H₂O(l) + Na₃C₆H₅O₇(aq).
n(NaHCO₃) = m(NaHCO₃) ÷ M(NaHCO₃).
n(NaHCO₃) = 1.50 g ÷ 84 g/mol.
n(NaHCO₃) = 0.0178 mol.
n(H₃C₆H₅O₇) = 1.50 g ÷ 192.12 g/mol.
n(H₃C₆H₅O₇) = 0.0078 mol.
From chemical reaction: n(NaHCO₃) : n(H₃C₆H₅O₇) = 3 : 1.
n(NaHCO₃) : 0.0078 mol = 3: 1.
n(NaHCO₃) = 0.0234 mol; amount of substance need to react with citric acid, so we conclude there is no enough sodium bicarbonate.
Answer:
The answer should be A
Explanation:
A control is basically something to compare the experiment to. In other words, to see how the object does on its own versus how it would do with added substances