Given 8.40 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100% yield?

               11.07 g of CH₃CH₂CH₂COOC₂H₅

Solution:

The Balance Chemical Equation is as follow,

        CH₃CH₂CH₂COOH + C₂H₅OH    →    CH₃CH₂CH₂COOC₂H₅  +  H₂O

According to equation,

  88.11 g (1 mol) Butanoic Acid produces  =  116.16 g (1 mol) of Ethyl Butyrate

So,

         8.40 g Butanoic Acid will produce  =  X g of Butyric Acid

Solving for X,

                      X  =  (8.40 g × 116.16 g) ÷ 88.11 g

                      X  =  11.07 g of Ethyl Butyrate

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.