enEnglishguગુજરાતી
GUJCET · Chemistry · Solutions
What will be mass percentage of aqueous solution of NaOH in which mole fraction of NaOH is 0.2?
- A \(64.86 \% W / W\)
- B \(35.71 \% W / W\)
- C \(23.38 \% W / W\)
- D \(27.78 \% W / W\)
Answer & Solution
Correct Answer
(B) \(35.71 \% W / W\)
Step-by-step Solution
Detailed explanation
\(M_{NaOH} = 40 \text{ g/mol}, M_{H_2O} = 18 \text{ g/mol}\) \(m_{NaOH} = 0.2 \text{ mol} \times 40 \text{ g/mol} = 8 \text{ g}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- For Daniell cell \(E_{\text {cell }}^{\circ}=1.1 V\). How Kc is represented for reaction occuring in Daniell cell?GUJCET 2025 Easy
- Which is the correct order for solubility of following compound in n-octane (at Identical Condition)
I) Cyclohexane
II) KCl
III) \(CH _3 OH\)
IV) \(CH _3 CN\)GUJCET 2025 Easy - Time required to decompose \(SO _2 Cl _2\) to half of its initial amount is \(4 0\) minutes. If the decomposition is a first order reaction, what will be the rate constant of the reaction?GUJCET 2020 Easy
- What will be the theoretical value of magnetic momentum ( \(\mu\) ), when \(CN ^{-}\)ligands join \(Fe ^{3+}\) ion to yield complex.GUJCET 2007 Hard
- Which ion has the least value of theoretical magnetic moment ?GUJCET 2018 Medium
- Which reagent will be used in the following process?
\(CH _3 CH _2 CH _2 CH _3 \rightarrow CH _3 CH _2 CH _2 CH _2 Cl + CH _3- CH _2-\underset{ Cl }{ CH }- CH _3\)GUJCET 2007 Easy
More PYQs from GUJCET
- Electric field produced due to an infinitely long straight uniformly charged wire at a perpendicular distance of 2 cm is \(3 \times 10^8 NC ^{-1}\). Then, linear charge density on wire is _________. ( \(k=9 \times 10^9\) SI unit)GUJCET 2014 Hard
- Choose the correct option for the pedigree analysis given below:
GUJCET 2020 Medium - Find the equivalent capacitance between two points A and B, for given figure (electric circuit) (capacitance of each capacitor is \(C =3 \mu F\).)
GUJCET 2021 Medium - The co-ordinates of the corner poinis of the bounded feasible region are \((0,10),(5,5),(15,15)\), \((0,20)\). The maximum of the objective function \% \(=10 x+20 y\) in :GUJCET 2023 Medium
- __________ is the region on which, the ovule is connected to funicle.GUJCET 2020 Easy
- For obtaining wattless current ______________ is connected with ac supply.GUJCET 2023 Medium