Answer: thermometer is sensitive to change in Temperature
Explanation: thermometer is made of tiny glass and within the thermometer is liquids like alcohol and Mercury that are very sensitive to change in Temperature,when a thermometer is placed in an environment where there is increase in Temperatue,the liquid in the thermo
Standard reduction potential of Cd2+ = -0.403 v
Standard reduction potential of Cr3+ = -0.74 v
Here, reduction potential of Cd2+ is higher as compared to Cr3+. Hence, it will preferentially undergo reduction.
The electrochemical cell is represented as
Cr/Cr3+// Cd2+/Cd
Now, standard EMF of cell = E = ECd2+/Cd - ECr3+/Cr
= - 0.403. - (-0.74)
= 0.337 v
Answer:
4.1 mol·L⁻¹
Explanation:
You are diluting the solution with water, so you can use the dilution formula
c₁V₁ = c₂V₂ Divide each side by V₂
c₂ = c₁ × V₁/V₂
Data:
c₁ = 7.0 mol·L⁻¹; V₁ = 2.5 L
Water added = 1.5 L
Calculations:
(a) <em>New volume
</em>
V₂ = 2.5 L + 1.8 L
= 4.3 L
(b) <em>New concentration
</em>
c₂ = 7.0 × 2.5/4.3
= 7.0 × 0.581
= 4.1 mol·L⁻¹
First CH3OH is a nonelectrolyte since it will not ionize in water to form ions, so will not conduct electricity.
<span>1M NaOH has more concentration of ions than0.1M NaOH </span>
<span>and since more ions will be present, it is the best conductor of electricity </span>
