JEE AdvancedChemistrySome Basic Concepts of ChemistryNumerical+3 / −1
29.2 % (w/w) stock solution has density of 1.25 g mL-1 . The molecular weight of is 36.5 g mol-1 . The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M is
Numerical answer
More from Some Basic Concepts of Chemistry
- Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is2011 · MCQ
- The volume (in mL) of 0.1 M required for complete precipitation of chloride ions present in 30 mL of 0.01 M solution of , as silver chloride is close to .2011 · Numerical
- A student performs a titration with different burettes and finds titre values of 25.2 mL, 25.25 mL, and 25.0 mL. The number of significant figures in the average titre value is2010 · Numerical
- Silver (atomic weight = 108 g mol-1) has a density of 10.5 g.cm-3. The number of silver atoms on a surface of area 10-12 m2 can be expressed in scientific notation as y 10x. The value of x is?2010 · Numerical
- Given that the abundances of isotopes 54Fe, 56Fe and 57Fe are 5%, 90% and 5%, respectively, the atomic mass of Fe is :2009 · MCQ
- Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as indicator. The number of moles of Mohr’s salt required per mole of dichromate is2007 · MCQ
- The stoichiometric reaction of of dimethyldichlorosilane with water results in a tetrameric cyclic product in yield. The weight (in g) of obtained is . [Use,…2023 · Numerical
- (5 moles) reacts completely with acidified aqueous potassium permanganate solution. In this reaction, the number of moles of water produced is , and the number of moles of electrons involved is …2023 · Numerical