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We know mole fraction = moles of solute/(moles of solute + moles of solvent), Let mass of water is 1 kg . Do check out the sample … Designed and Developed by the experienced faculty of KOTA (IIT Kharagpur Alumni). Critical Thinking. A Brief Intro. Take Free Test | Details. If the density of this commercial acid is 1.834 g cm-3, the molarity of this solution is :-, 95% H2SO4 means 100 gm contain 95 gm H2SO4, Molarity = No. Some solved example questions on the mole concept are provided in this subsection. This PDF below consists of the chemistry important questions for Jee Mains. PRE-JEE MAIN PRE-AIPMT 2016? Questions related to topics like SHM, sound waves, string, Doppler effect, Wave Optics are surely asked in JEE Main each year. Any sample of matter which can be studied consists of extremely large number of atoms or molecules. JEE Advanced Pattern Questions from chapter Mole Concept - Some Basic Concepts of Chemistry, Chemistry video lecture for JEE Main Class 11 students, prepare by the best experienced faculty. Take Free Test | Details. If you are confused as from where you need to start, here are a few topics from the syllabus that can help you to kick start your study process. of moles/ volume = mass of solute/98. So the formula of metal chloride will be MCl4. This article talks about important concept, formulae and previous years' questions related to Basic Concepts of Chemistry for JEE Main and JEE Advanced Examination 2019. A.1: The molar mass of iron is 55.845 g/mol. $100 \mathrm{gm}$ contain $95 \mathrm{gm} \mathrm{H}_{2} \mathrm{SO}_{4}$, Molarity $=\frac{95 / 98}{100 / 1.834} \times 1000$, $=\frac{95 \times 1.834}{98 \times 100} \times 1000=1.78$, The density of a solution prepared by dissolving 120 g of urea (mol. Next. To study mole concept, first ask yourself if you can solve the following question: 5 pens cost 25 rupees. Practice Now. If further information (i.e., 330 ml) is neglected, The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. A mole is defined as the amount of a substance that contains exactly 6.02214076 × 1023 ‘elementary entities’ of the given substance. Sakshi Vora ex IITian has started a crash course for students preparing for JEE/NEET. Board: CBSE, GSEB, ICSE, ISC, International Board, Cambridge. Mole Concept: Advanced Level Problem (ALP) Sheet Hope you are enjoying solving problems on this platform for Free IIT-JEE preparation (JEE Main and Advanced). The ratio of number of their molecule is : (1) 1 : 8         (2) 3 : 16           (3) 1 : 4          (4) 7 : 32, Given $\frac{\mathrm{W}_{\mathrm{O}_{2}}}{\mathrm{W}_{\mathrm{N}_{2}}}=\frac{1}{4} \Rightarrow \frac{\mathrm{n}_{\mathrm{O}_{2}}}{\mathrm{n}_{\mathrm{N}_{2}}}=\frac{\mathrm{W}_{\mathrm{O}_{2}} \times \mathrm{M}_{\mathrm{N}_{2}}}{\mathrm{W}_{\mathrm{N}_{2}} \times \mathrm{M}_{\mathrm{O}_{2}}}=\frac{1}{4} \times \frac{28}{32}=\frac{7}{32}$. Chemistry Class-X 1 Questions Bank Question Bank Mole Concept and Stoichiometry 1. The mole concept is one of the topics with which you leave your preparation of physical chemistry in class 11. Liberated NH3 will combine with which of the following HCl solution? The molarity of barium hydroxide solution was (1) 0.14 (2) 0.28 (3) 0.35 (4) 0.07 (MAINS-2003) Calculate the mass of FeSO4.7H2O which must be added in 100 kg of wheat to get 10 PPM of Fe. Mole Concept Questions For Iit Jee TopperLearning Com Online Study Material. 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