Answer:
The correct answer is 0.277 M HCl
Explanation:
NaOH is a strong base and HCl is a strong acid. NaOH reacts with HCl to form a salt (NaCl) and water via a neutralization reaction, as follows:
NaOH + HCl → NaCl + H₂O
At the equivalence point, the moles of NaOH added is equal to the moles of HCl present in the solution to be titrated. Moreover, the moles can be calculated as the product of the concentration of base or acid (Cb or Ca) and the volume (Vb and Va), as follows:
moles NaOH = moles HCl
Cb x Vb = Ca x Va
Thus, we calculate the concentration of HCl (Ca), as follows:
Ca = (Cb x Vb)/Va = (0.146 M x 47.5 mL)/(25.0 mL)= 0.277 M
Make 2 in 102 as the power of 10
10^2 = 100
101 - 10^2 = 101 - 100 = 1
Hope it helped:)
I think it will cause the reaction to be different since temp. is a physical property.
Thermal energy always moves from a warmer area to a colder area
