Determination of conductance of various solutions Assignment

Determination of conductance of various solutions - Assignment Example 4. From the data collected in the experiment, the following have been classified as either strong acid, weak acid, strong base or weak base. HCL- strong acid HNO3- strong acid KOH- strong base CH3CO2H- weak acid NH3- weak base 5. KNO3, Ca (NO3)2, Al (NO3)2, HNO3. All these compounds have the same anion i.e. NO3- but differ only in the cation present. This difference brings about the difference in their conductance. The differences arise due to the difference in mobility of the various cations. All those metals plus hydrogen have different mobility in aqueous form, therefore, will conduct electric current differently. 6. The conductance of KCl is 660Â µS while that of KNO3 is 2.9mS. These two values differ due to the conductance contributed by nitrate and chloride ions to the total conductance of the solution. Therefore based on the same principle NaNO3 is expected to have a higher conductance than NaCl. 7. From the conductance of KCl, HCl, and HNO3 the conductance of KNO3 can be calculated as: LKNO3 = LKCl+ LHNO3 - LHCl LKNO3 = 0.66mS+8.6mS-8.1mS LKNO3 = 1.16mS. 8. a) The conductance value for tap water was 0.2mS signifying that it was a weak electrolyte. Therefore it did not contain any ionic impurities since they would have given a higher conductance value. b) The tap water could have contained molecular impurities which were responsible for the small conductance recorded. These impurities partially dissolved in the aqueous solution and hence recorded the small conductance value observed.

The Culture and History of Switzerland Assignment

The Culture and History of Switzerland - Assignment Example The main principle that characterizes the country’s political system is that the citizens have the highest political authority in the states of Swiss. They have the leverage of conveying their opinion at the levels such as communal, cantonal, and federal. Moreover, they can not only vote on different issues but also elect representatives of the Federal Assembly (Swiss Community, 2015). Response to question 3 The geopolitics and geography of the Swiss sustained and allowed a tension-laden but polycentricity that was effective. The cantons stubbornly, on autonomy, canalized the attempts, as well as, state-building into a league mode of association instead of centralizing the unitary state model. The ultimate sovereignty neither depends on the citizen nor in some of the central universal principle though it will depend on the autonomous communities. This can be explained by the difference of in the democratic process of this country in comparison to other democracies. It has a direct democracy where the citizens influence government activities directly through either referenda or initiatives. In the federalism, the constitutional powers are citizen centered as well as the cantons. Moreover, they have consociational democracy where the cantonal majority rules. Cantons that are small have equal weight to those that are big (Swiss Community, 2015). Response to question 4 In my opinion, the culture and color character of the Zurich, Geneva, and Basel relatively differ. This can be attributed to the fact that the culture of the citizens is firmly anchored by the cantons. These cities are important facets of cultural identity as they contribute to the cultural and social substance towards the maintenance of the nation that is polycentric.