Answer:
44.7 degree (3 s.f)
Explanation:
mass of water = 4.10Kg
Initial temperature = 37.5C
Final temperature = x
Heat = 125 kJ = 125000 J
Specific heat capacity = 4180 J/kg°C
These parameters are given by:
H = MCΔT
ΔT = H / MC
ΔT = 125000 / (4.10 * 4180)
ΔT = 7.294
ΔT = T2 - T1
T2 = ΔT + T1
T2 = 7.294 + 37.5
T2 = 44.794 = 44.7 degree (3 s.f)
Answer:
Hydrogen bond is formed only by the three highly electronegative elements- fluorine, oxygen and nitrogen.
<u>Answer:</u>
concentration of H ions = 0.0001 M
<u>Explanation:</u>
Base 10 logarithm of the H+ concentration when multiplied by -1 is equal to the pH value of a solution. By reversing this formula, we can find the concentration of the H+ in the solution:
pH =
㏒ ![(concentration of H+)](https://tex.z-dn.net/?f=%28concentration%20of%20H%2B%29)
or
= concentration of H+
We know that, pH of the solution is 4.0,
so
=
Therefore, the concentration of Hydrogen ions in a solution of pH = 4 is 0.0001 M.
Answer:
non-medals
Explanation:
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