Chemistry Answers

What is the effect of the following on the volume of 1 mol of an ideal gas? The pressure is reduced by a factor of 4 (at constant T).

What is the function of starch in an iodometric titration? Why should starch solution be added just before the end-point of the titration?

In the titration of CuSO/Hypo, a dark yellow color is obtained on the addition of KI in CuSO4 solution. Why is this dark yellow color obtained?

What is the function of starch in an iodometric titration? Why should starch solution be added just before the end-point of the titration?

In the titration of CuSO/Hypo, a dark yellow color is obtained on the addition of KI in CuSO4 solution. Why is this dark yellow color obtained?

A silver coulometer was connected in series with another cell containing M²^+ solution of an unknown metal. M. After passing electric current for 1hr through the two cell it was found that 5.43g of Ag was deposited, while 2.83g of M was deposited in the cell. What is the molar mass of M?

What alcohols yield the following alkenes on dehydration?

A. (CH3)2C = C(CH3)2

B. CH3CH2CH = CH2

Which of the following compounds has the highest boiling point

A CH3CH2CH2OH

B. CH3CH2OCH3

C. CH3CH2CH3

Order these forces from weakest to strongest (i.e. 1 is the weakest and 3 is the strongest).

__1__London dispersion__3__(2)Dipole-dipole__2__(3)Ionic attraction

1. Classify each of the following as a single displacement or double displacement reactions. Then, predict the products of each reaction, and provide the balanced equation. (2 marks each)
2. Cl_2(g) + CsBr_(aq)→
3. AgNO_3(aq) + Na₂CrO_4(aq) →
4. MgCl_2(aq) + AgNO_3(aq) →
5. F_2(g) + NaI_(aq) →