Question

Calculate the number of moles 7.2 grams of glucose

Answer 1

Answer:

$\boxed{\pink{\textsf{\textbf{ The number of moles is 0.04. }}}}$

Explanation:

We need to calculate the number of moles of glucose in 7.2 g of glucose. We know that the molecular mass of Glucose is ,

$\sf\dashrightarrow C_6H_{12}O_6= \boxed{\red{\sf 180g }}$

We know that we can find the number of moles as , Given weight/ Molecular weight .

$\sf\dashrightarrow n =\dfrac{ Given \ wt .}{Molecular\ wt.} \\\\\\\sf\dashrightarrow n =\dfrac{7.2g}{180g} \\\\\\\sf\dashrightarrow \boxed{\pink{\frak{ number_{(moles)}= 0.04 }}}\bigstar$

$\rule{200}2$

MorE To KnoW :-

We can also find the number of moles as ,

• When number of particles is given

$\sf\dashrightarrow \red{ n = \dfrac{ Given \ number \ of \ particles}{Avogrado's\ Number}}$

• When the volume of gas is given ( Only valid for gases )

$\sf\dashrightarrow \red{ n = \dfrac{ Given \ Volume ( in \ L)}{22.4 \ L }}$

$\rule{200}2$

Peace out ☃️