Molecule is a chemical substance that cannot be broken down into another chemical substance.
Answer:
Cp = 0.237 J.g⁻¹.°C⁻¹
Explanation:
Amount of energy required by known amount of a substance to raise its temperature by one degree is called specific heat capacity.
The equation used for this problem is as follow,
Q = m Cp ΔT ----- (1)
Where;
Q = Heat = 640 J
m = mass = 125 g
Cp = Specific Heat Capacity = <u>??</u>
ΔT = Change in Temperature = 43.6 °C - 22 °C = 21.6 °C
Solving eq. 1 for Cp,
Cp = Q / m ΔT
Putting values,
Cp = 640 J / (125 g × 21.6 °C)
Cp = 0.237 J.g⁻¹.°C⁻¹
Answer:
Chemical Property describes the way substances react with other substances to form new substances.
Explanation:
Hope it helps you
The formula to find yield is
(Actual Yield)/(Theorectical Yield) x100
Just do the math.
85.22% x 113 = 96.2986
Convert it to 3 significant figures
Ans: 96.3g
Answer:
1.995*10⁻⁵
Explanation:
pH = 4.7
[H₃O⁺] = ?
pH = -log[H₃O⁺]
4.7 = -log[H₃O⁺]
Take the anti-log of both sides,
[H₃O⁺] = 10⁻⁴·⁷
[H₃O⁺] = 1.995*10^-⁵
