Answer:
All the above
Explanation:
A. Electrical current conduction
Aqueous solutions of both strong and weak acids will conduct an electric current. Weak acids are poorer conductors because they produce fewer ions.
B. Reaction with magnesium
Both strong and weak acids will react with magnesium, although weak acids will react more slowly.
C. pH paper test
Both strong and weak acids will give a colour with pH test paper, although the colours will probably be different.
D. Litmus paper test
Both strong and weak acids will turn blue litmus red.
The Henderson-Hasselbalch approximation is for conjugate acid-base pairs in a buffered solution. We're going to call HA a weak acid, and A- its conjugate base. The equation is as follows:
pH = pKa + log([base]/[acid]), where the brackets imply concentrations
Plugging in our symbols and the pKa value, the equation becomes:
pH = 4.874 + log([A-]/[HA])
Answer:
-248.425 kJ/mol
Explanation:
This question can be done by simply taking the ratios:
Since the given the heat change for 1.00 mol of 
is -373.7 KJ/mol. Let us consider the required Heat Exchange at 0.631 mol of
We can write:
KJ/mol
1.57yd³
Explanation:
This is a conversion problem from m³ to yd³;
Given 1.2m³, convert to yd³
1m = 1.094yd
We are going to use a conversion factor of 1 to solve this problem;
m³ = m x m x m
1.2 m ³ = 1.2 x m x m x m x 
= 1.57yd³
learn more:
Conversion brainly.com/question/1548911
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A solution of sodium nitrate will get make litmus paper wet. A solution of NaNO3 is neutral. Therefore, there is no change in color.
