MCQ
In one molal solution that contains $0.5$ mole of a solute, there is
- ✓$500\, g$ of solvent
- B$100 \,mL$ of solvent
- C$1000 \,g$ of solvent
- D$500 \,mL$ of solvent
✓
Answer
Correct option: A.
$500\, g$ of solvent
a
$m =\frac{\text { Moles of solute }}{\text { Weight of solvent }( g )} \times 1000$
$m =\frac{\text { Moles of solute }}{\text { Weight of solvent }( g )} \times 1000$
$1=\frac{0.5}{\text { Weight of solvent }( g )} \times 1000$
Weight of solvent $( g )=500 \,g$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Examine the following three pairs of possible isomers Now state whether the pairs represent identical compounds or different isomers
$A{l_2}{O_3}$ formation involves evolution of a large quantity of heat, which makes its use in
→$81.4\, g$ sample of ethyl alcohol contains $0.002\, g$ of water. The amount of pure ethyl alcohol to the proper number of significant figures is
→What will be the $pH$ of an aqueous solution of $1.0\, M$ ammonium formate ? (Given: $pK_a = 3.8$ and $pK_b = 4.8$)
→To seprate different fractions of crude oil in petroleum industry, the method used is
In which of the following is the angle between the two covalent bonds greatest
The energy of an electron in excited hydrogen atom is $-3.4 \,eV.$ Then, according to Bohr's theory the angular momentum of this electron in $Jsec$ is
→Which one of the following represents the electronic configuration of the most electropositive element
Which of the following has strongest $+I$ effect?
→Consider the following reaction
→$C(s) + O_2(g) \to CO_2(g) + x\ kJ$
$CO(g) + \frac {1}{2}O_2(g) \to CO_2(g) + y\,kJ$
The heat of formation of $CO(g)$ is