Answer: 36.2 ml
Explanation:
Assmed values :
weight of sulphurous acid = 0.104 g
volume of flask = 250 ml
Molarity of NaOH solution = 0.0700 M
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute = 
= volume of solution in ml
According to the neutralization law,
where,
= molarity of 
solution = 0.00507 M
= volume of solution = 250 ml
= molarity of 
solution = 0.0700 M
= volume of solution = ?
= valency of = 2
= valency of = 1
Therefore, the volume of solution the student will need to add to reach the final equivalence point is 36.2 ml
Answer:
False.
Explanation:
(5 kilometers / 30 minutes), you could then say that in 60 minutes (one hour) you would be traveling at (10 kilometers / 60 minutes)...
Therefore, it is unlikely that you would be traveling at (6 kilometers / hour), so the answer should be... False.
A chemical reaction between the metals and the electrolyte frees more electrons in one metal than it does in the other. The metal that frees more electrons develops a positive charge, and the other metal develops a negative charge.
Answer: A. the chemical change will occur faster in beaker X.
Explanation:
Temperature is one of the factors that affect the rates of chemical reactions. Increase in temperature increases the rates of reaction by increasing the kinetic energy of the reacting particles so that energetic collisions occur and more bonds in the reactants will be broken and; atoms and ions recombine to form new compounds. Beaker X which is at room temperature has higher temperature than beaker Y which is kept in the refrigerator, thus reacting particles in beaker X has more kinetic energy than the ones in beakerA. the chemical change will occur faster in beaker X. Y.
