JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
The molarity of a solution obtained by mixing \(750 \,mL\) of \(0.5(M)\,HCl\) with \(250\,mL\) of \(2(M)\,HCl\) will be .........\(M\)
- A \(0.87\)
- B \(1.00\)
- C \(1.75\)
- D \(0.97\)
Answer & Solution
Correct Answer
(A) \(0.87\)
Step-by-step Solution
Detailed explanation
From Molarity equation: \(M_{1} V_{1}+M_{2} V_{2}=M \times V\) \(M=\frac{M_{1} V_{1}+M_{2} V_{2}}{V}\) where \(V=\) total volume \(=\frac{750 \times 0.5+250 \times 2}{1000}=0.875\, M\)
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
- Given below are two statements :
Statement I : Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.
Statement II : Sodium metal can be used to dry diethyl ether and not ethyl alcohol.
In the light of given statements, choose the correct answer from the options given belowJEE Mains 2025 Easy - First order gas phase reaction \(A \rightarrow B + C\)
\(p_i =\) initial pressure of gas A, \(p_t =\) total pressure of the reaction mixture at time \(t\)
Expression of rate constant (\(k\)) isJEE Mains 2026 Medium - In Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl . The percentage composition of chlorine in the compound is _______ %.
(Given : molar mass in \(\mathrm{g} \mathrm{mol}^{-1}\) of \(\mathrm{Ag}: 108, \mathrm{Cl}: 35.5\) )JEE Mains 2025 Medium - The limiting molar conductivities of \(NaI , NaNO _{3}\) and \(AgNO _{3}\) are \(12.7,12.0\) and \(13.3 \,m\,S m ^{2} \,mol ^{-1}\), respectively (all at \(25^{\circ} C\) ). The limiting molar conductivity of \(AgI\) at this temperature is \(....\,m\,S m ^{2}\, mol ^{-1}\)JEE Mains 2022 Medium
- The first ionization enthalpy of \(Na , Mg\) and \(Si\), respectively, are: \(496,737\) and \(786\; kJ\; mol ^{-1}\). The first ionization enthalpy \(( kJ\; mol ^{-1})\) of \(Al\) isJEE Mains 2022 Easy
- The value of Rydberg constant \(\left(R_H\right)\) is \(2.18 \times 10^{-18} \mathrm{~J}\). The velocity of electron having mass \(9.1 \times 10^{-31} \mathrm{~kg}\) in Bohr's first orbit of hydrogen atom = _______ \(\times 10^5 \mathrm{~ms}^{-1}\) (nearest integer)JEE Mains 2024 Medium
More PYQs from JEE Mains
- A hydraulic press containing water has two arms with diameters as mentioned in the figure. A force of \(10 \mathrm{~N}\) is applied on the surface of water in the thinner arm. The force required to be applied on the surface of water in the thicker arm to maintain equilibrium of water is _______ \({N}\).
JEE Mains 2024 Hard - The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross-section. Cross sectional areas at \(A\) is \(1.5\,cm ^2\), and \(B\) is \(25\,mm ^2\), if the speed of liquid at \(B\) is \(60\,cm / s\) then \(\left( P _{ A }- P _{ B }\right)\) is :(Given \(P _{ A }\) and \(P _{ B }\) are liquid pressures at \(A\) and \(B\) points.Density \(\rho=1000\,kg\,m ^{-3}\) \(A\) and \(B\) are on the axis of tube \(............\,Pa\)
JEE Mains 2023 Hard - Let \(A=\left[\begin{array}{lll}x & y & z \\ y & z & x \\ z & x & y\end{array}\right], \quad\) where \(x, y\) and \(z\) are real numbers such that \(x + y + z >0\) and \(xyz =2\) If \(A ^{2}= I _{3},\) then the value of \(x ^{3}+ y ^{3}+ z ^{3}\) is ............JEE Mains 2021 Hard
- A resonance circuit having inductance and resistance \(2 \times 10^{-4} H\) and \(6.28 \Omega\) respectively oscillates at \(10\, MHz\) frequency. The value of quality factor of this resonator is ......... \([\pi=3.14]\)JEE Mains 2021 Medium
- Increasing order of electron withdrawing power of following functional groups is:
a. \(-CN\)
b. \(-COOH\)
c. \(-NO_2\)
d. \(-I\)JEE Mains 2026 Easy - Expression for an electric field is given by \(\vec{E}=4000 x^2 \hat{i} \frac{V}{m}\). The electric flux through the cube of side \(20\,cm\) when placed in electric field (as shown in the figure) is \(.........V cm\).
JEE Mains 2023 Medium