What mass in grams of \( \mathrm{NaHCO}_{3} \) is required to make 59.3 mL of 2.68 M solution?

Explain,why we cannot call any fresh vegetable or fruit a pure substance?

5 What is meant by the term hygroscopic when referring to brake fluid?

What does word root indicate in IUPAC name? b. Write the suffix for doubly bonded \( (\mathrm{C}=\mathrm{C}) \) alcohol. c. Ifsame substituent is repeated thrice, which prefix is added to word root? \& Write IUPAC name of \( \mathrm{CH}_{3}-\mathrm{CH}(\mathrm{CI})-\mathrm{CH}_{2}-\mathrm{COOH} \). e. Which group is selected as suffix if -OH and -CHO both are present in the compound?

A substance with a pH of 2 is

The electronic configuration of one element is \(1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 3d^ { 10} 4s^ 1\). What is same group which is recently discovered?