AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
Calculate the molarity of \(\mathrm{NaOH}\) solution prepared by dissolving \(0.4 \mathrm{~g}\) of \(\mathrm{NaOH}\) in enough water to form \(500 \mathrm{~mL}\) of the solution.
- A 0.02
- B 0.05
- C 0.04
- D 0.03
Answer & Solution
Correct Answer
(A) 0.02
Step-by-step Solution
Detailed explanation
Molarity \(=\frac{w_B \mathrm{gL}^{-1}}{M_B \mathrm{~g} \mathrm{~mol}^{-1}}=\frac{\frac{0.4}{500} \times 100}{40}=0.02 \mathrm{M}\) \(\left[\therefore w_B=\right.\) mass of solute \((\mathrm{NaOH})=0.4 \mathrm{~g} / \mathrm{mL}\) \(M_B=\) molar mass of…
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
- In which of the following reactions, \(\mathrm{NO}_2\) is not liberated?AP EAMCET 2017 Medium
- The correct order of reducing abilities of hydrides of V group elements isAP EAMCET 2008 Easy
- Oxidation number of \(\mathrm{Cr}\) in \(\left[\mathrm{Cr}(\mathrm{CO})_6\right]\) isAP EAMCET 2020 Easy
- The formal charges of \(\mathrm{N}_{(1)}, \mathrm{N}_{(2)}\) and \(\mathrm{O}\) atoms in
are respectivelyAP EAMCET 2011 Medium - Which compounds among the following give positive iodoform test?
AP EAMCET 2021 Hard - Given that \(\Delta H_f(\mathrm{H})=218 \mathrm{~kJ} / \mathrm{mol}\), express the \(\mathrm{H}-\mathrm{H}\) bond energy in \(\mathrm{kcal} / \mathrm{mol}\).AP EAMCET 2009 Easy
More PYQs from AP EAMCET
- What is the concentration (in \(\mathrm{mol} \mathrm{L}^{-1}\) ) of the product after \(20 \mathrm{~s}\) in the following reaction. Given that \(A \longrightarrow 3 B\), rate \(=k[\mathrm{~A}]^0\)
AP EAMCET 2017 Easy - The locus of \(z\) satisfying \(\left|\frac{z-i}{z-2 i}\right|=2\) is aAP EAMCET 2020 Easy
- Which of the following are general methods for the preparation of 1-iodopropane?
AP EAMCET 2024 Medium - If \(f(x)=\left|\begin{array}{ccc}2 \cos x & 1 & 0 \\ x-\frac{\pi}{2} & 2 \cos x & 1 \\ 0 & 1 & 2 \cos x\end{array}\right|\) then \(f^{\prime}(\pi)\) is equal toAP EAMCET 2010 Medium
- A fan is rotating with an angular speed \(300 \mathrm{rpm}\). The fan is switched off, and it takes \(80 \mathrm{~s}\) to come to rest. Assuming constant angular deceleration, the number of revolutions made by the fan before it comes to rest isAP EAMCET 2022 Medium
- In a container of volume \(16.62 \mathrm{~m}^3\) at \(0{ }^{\circ} \mathrm{C}\) temperature, 2 moles of oxygen, 5 moles of nitrogen and 3 moles of hydrogen are present, then the pressure in the container is
\(\left(\right.\) Universal gas constant \(\left.=8.31 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\right)\)AP EAMCET 2025 Easy