Question

what is molecular formula calculate the molecular mass of following a) NaCl b) C6 h12 o 6 c) H2So4 d) HNo3​

Answer 1

Answer:

a) 23 + 35.5 = 58.5 u b) (12)6 + (1)12 = 90 u

c) (1)2 + (32)4 = 130 u d) 1 + 14 + (16)3 = 63 u

Explanation:

as every compound's made up of different element like NaCl = sodium + chlorine

so first ya have to learn atomic unified mass of elements and than add "em

Answer 2

Molecular Formula :

A chemical formula represents the composition of a molecule of the substance in term of the symbols of the elements present in the molecule. A chemical formula is also known as molecular formula.

Calculate the molecular mass of following :

a)

$: \implies \sf{NaCl} \\ \\ : \implies \sf{23 + 35.5} \\ \\ : \implies{ \underline {\boxed {\sf \red{58.5 \: g/mol }}}}$

b)

$: \implies\sf{C _{6}H_{12} O_{6} } \\ \\ : \implies \sf{21 \times 6 + 1 \times 12 + 16 \times 6 } \\ \\ : \implies \sf{72 + 12 + 96} \\ \\ : \implies { \underline{ \boxed{\sf \green{180 \: g/mol}}}}$

c)

$: \implies \sf{H _{2} SO _{4}} \\ \\ : \implies \sf{1 \times 2 + 32 + 16 \times 4} \\ \\ : \implies \sf{2 + 32 + 64} \\ \\ : \implies { \underline{ \boxed{\sf \purple{98 \: g/mol}}}}$

d)

$: \implies \sf{HNO _{3} } \\ \\ : \implies \sf{1 + 14 + 16 \times 3} \\ \\ : \implies \sf{15 + 48} \\ \\ : \implies { \underline{ \boxed{\sf \pink{63 \: g/mol}}}}$