Answer: 75 liters of in liters would be required if 15.0 L of propane burns, assuming that all of the gases are under the same conditions.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Lat STP and contains avogadro's number of particles.
To calculate the number of moles, we use the equation:
According to stoichiometry:
1 mole of propane combines with = 5 moles of oxygen
Thus 0.67 moles of propane combine with =
Volume of
Thus 75 liters of in liters would be required if 15.0 L of propane burns, assuming that all of the gases are under the same conditions.
Answer:
D). The kinetic energy of the water particles decreases.
Explanation:
Your welcome!
Answer:
The answer would be 1.5 kJ.
Explanation:
When you use the equation q = m x c x ∆T you will be able to find the energy gained or lost. The data for the water in this case is just there to distract you so ignore it. :D
Answer is: Prepare to measure pH change.
For example for strong acid-base titration, sodium hydoxide and hydrochloric can be used.
Balanced chemical reaction: HCl + NaOH → NaCl + H₂O.
In this reaction pH of equivalence point will be always 7.
Equivalence point is the point which there is stoichiometrically equivalent amounts of acid and base.
Chemist can draw pH curve (graph showing the change in pH of a solution, which is being titrated) for titration and determine equivalence point.
Near equivalence point indicator should change color, so we must pick indicator who change color near pH of equivalence point.