The answer is 2 and 1/2 pills
250+250=500 which is two pills then half of 250 is 125 which is half a pill
Answer:
Molarity NaOH = 0.85M (2 sig figs)
Explanation:
48.0ml(0.220M H₂SO₄) + 25ml(Xmolar NaOH)H₂SO₄ + 2NaOH => Na₂SO₄ + 2H₂O
2(molarity x volume) H₂SO₄ = (molarity x volume) NaOH
2(0.220M x 48.0ml) = 25.0ml x Molarity NaOH
Molarity NaOH = 2(0.220M x 48.0ml)/25.0ml = 0.8448M ≅ 0.85M (2 sig figs)
The products of the reaction are the molecules on the right, thus water and carbon dioxide, hence we eliminate choice 4. Every time the reaction takes place, 14 molecules of CO2 are created and 6 molecules of H2O by the stoicheiometry of the reaction. This ratio will remain throughout the whole reaction, however many reactants are used up. Hence, the correct ratio is CO2:H2O=14:6, answer a).
Answer: Volume would be 196.15 mL if the temperature were changed to and the pressure to 1.25 atmospheres.
Explanation:
Given: , = 256 mL,
= 720 torr (1 torr = 0.00131579 atm) = 0.947368 atm
,
Formula used to calculate volume is as follows.
Substitute the values into above formula as follows.
Thus, we can conclude that the volume would be 196.15 mL if the temperature were changed to and the pressure to 1.25 atmospheres.