4. Which of the following acids are \"strong\" electrolytes and which are \"weak

Question

4. Which of the following acids are "strong" electrolytes and which are "weak" electrolytes? Circle the strong electrolytes and underline the weak electrolytes. 5. If 26.25-mL of 0.1180-M of a NaOH solution reacts with 25.00-mL of H,SO H,SOL what is the molarity of the acid solution? Molarity- 6. Give an example of each of the following redox reactions a) Combination reaction of magnesium with oxygen: The oxidizing agent is The reducing agent is b) (Single) displacement reaction of zinc metal with copper () sulfate: The oxidizing agent is The reducing agent is c) Decomposition reaction of potassium chlorate to give potassium chloride and oxygen d) Combustion of pentane [CsHs2] with oxygen- The oxidizing agent is_ The reducing agent is e) Halogen displacement reaction of chlorine with lithium iodide: The oxidizing agent is The reducing agent is f)Give the oxidation numbers loxidation state] of the indicated elements in each of the following compounds i) Mg(CIOJ2 Oxidation # of C's iii) KMnO4 Oxidation # of Mn- v) KP04 Oxidation # of P ii) Felcoh Oxidation # of ci iv) H,803 Oxidation # of B vi) Hso. Oxidation # of Sis

Explanation / Answer

Ans 4 :

The compounds that dissociate completely in water are called as strong electrolytes , whereas the ones which dissociate partially are called as weak electrolytes.

So here :

Strong electrolytes : HBr , HI , HNO3 , HClO4 , H2SO4 , H2CrO4 , HCl

Weak electrolytes : HC2H3O2 , H3PO4 ,H2C2O4 , H2SO3 , H2CO3 , HF

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