IdeasCuriosas - Every Question Deserves an Answer Logo

In Chemistry / High School | 2014-04-09

Which of the following solutions would show the greatest conductivity at 30°C?

A. 0.20 M Ca(NO₃)₂
B. 0.25 M HCl
C. 0.30 M NaOH
D. 0.10 M NaCl
E. 0.40 M CH₃OH

Asked by Linda479

Answer (2)

Your answer will be A

Answered by UFGators | 2024-06-10

The solution with the greatest conductivity at 30°C is 0.20 M Ca(NO₃)₂ , since it dissociates into three ions per formula unit, providing a total concentration of 0.60 M of ions. Both 0.30 M NaOH also produces a similar ion concentration, but the presence of the divalent Ca²⁺ often results in higher conductivity. Therefore, the best choice based on the analysis is option A.
;

Answered by UFGators | 2024-12-17

Related Questions in Chemistry

[Answered] An organic chemist measures the temperature [tex]$T$[/tex] of a solution in a reaction flask. Here is the result: [tex]$T=32.394^{\circ} C$[/tex] Convert [tex]$T$[/tex] to SI units. Round your answer to 6 significant figures.

[Answered] Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. [tex]$\square$ $C _6 H _{12} O _6+$ $\square$ $O _2 \rightarrow$ $\square$ $CO _2+$ $\square$ $H _2 O$[/tex] Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | | :------ | :------- | :------- | | C | | | | H | | | | O | | |

[Answered] Which of these changes is an example of a chemical change? A. sodium making an explosion when added to water B. solid CO₂ turning into gaseous CO₂ C. water droplets forming outside a glass on a hot day D. evaporation of water from a pan

[Answered] Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. [tex]$\square$ LiOH + $\square$ ZnCl _2 \rightarrow $\square$ LiCl + $\square$ Zn ( OH )_2[/tex] Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | |---|---|---| | Li | $\square$ | $\square$ | | O | $\square$ | $\square$ | | H | $\square$ | $\square$ | | Zn | $\square$ | $\square$ | | Cl | $\square$ | $\square$ |

[Answered] Why study chemistry? a) to be better informed about the world b) to be better able to make informed decisions c) to learn a technique for identifying and solving problems d) all of the above