Chemistry Lecture 1: Introduction to Mole Concept

Vocabulary and chemical calculation flashcards based on the introductory chemistry lecture regarding the mole concept and molar mass.

Batch Code

13-AN101WA

Sir Vishal Rahal

The instructor for the Chemistry lecture on the Mole Concept.

Subject Areas

The lecture notes categorize topics into Physical Chemistry (PC), Inorganic Chemistry (IOC), and Organic Chemistry (OC).

Molar Mass of $HCl$

$36.5$ (Calculated as $1 + 35.5$).

Molar Mass of $H_2SO_4$

$98$ (Calculated as $2 + 32 + (16 \times 4)$).

Molar Mass of $C_2H_5OH$

$46$ (Calculated as $(12 \times 2) + (1 \times 5) + 16 + 1$).

Molar Mass of $CH_3COOH$

$60$ (Calculated as $12 + 3 + 12 + 16 + 16 + 1$).

Molar Mass of $HNO_3$

$63$ (Calculated as $1 + 14 + (16 \times 3)$).

Molar Mass of $CaCO_3$

$100$ (Calculated as $40 + 12 + (16 \times 3)$).

Molar Mass of $CaCl_2$

$111$ (Calculated as $40 + (35.5 \times 2)$).

Molar Mass of $NaOH$

$40$ (Calculated as $23 + 16 + 1$).

Molar Mass of $NH_3$

$17$ (Calculated as $14 + (1 \times 3)$).

Molar Mass of $CH_4$

$16$ (Calculated as $12 + 4$).

Molar Mass of $C_2H_6$

$30$ (Calculated as $(12 \times 2) + 6$).

1 dozen

A unit representing 12 quantities.

1 pair

A unit representing 2 units.

1 mole

A quantity representing $6.022 \times 10^{23}$ entities.

Avogadro's Number ($N_A$)

$6.022 \times 10^{23}$.

Mass of 1 mole of $Na$ atoms

$23\,g$, which is equal to the mass of $6.022 \times 10^{23}$ $Na$ atoms.

Mass of $N_A$ atoms of $H$

$1\,g$.

Mass of $N_A$ atoms of $O$

$16\,g$.

Mass of $N_A$ atoms of $N$

$14\,g$.

Symbol Notation ($_Z^A X$)

A method to represent an element where $X$ is the symbol, $A$ is the mass number, and $Z$ is the atomic number.