Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- Molarity of 15% H_2SO_4 of density 1.1 g/cm^3 is _______
- The number of moles of KCl in 1000 mL of 3 M solution is _______
- The number of moles of SO_2Cl_2 in 13.5 g is _______
- The mole fraction of nitrogen, in a mixture of 7 g of N_2 and 16 g of O_2 is _______
- The solutions A and B are 0.1 M and 0.2 M in a substance. If 100 mL of A is mixed with 25 mL of B and there is no change in...
- A 500 g toothpaste sample has 0.2 g fluoride. What is the concentration of F^- in ppm?
- How many moles are represented by 24.5 g of H_2SO_4 ?
- If 25 mL of 0.4 M solution is diluted with water to a volume of 600 mL the new concentration of the solution is _____
- What will be the molarity of a solution, containing 5 g of sodium hydroxide in 250 ml solution?
- If 5.85 g of NaCl (molecular mass 58.5) is dissolved in water and the solution is made up to 0.5 litre, the molarity of the...
- The density (in g ,mL^ -1 ) of a 3.60 M sulphuric acid solution that is 29% H_2SO_4 (Molar mass = 98 g ,mol^ -1 ) by mass will be...
- What is the molarity of H_2SO_4 solution, that has a density of 1.84 g/cc at 35 °C and contains solute 98% by weight?
- To prepare a solution of concentration of 0.03 g/mL of AgNO_3 , what amount of AgNO_3 should be added in 60 mL of solution? [AFMC...
- If density of a solvent is greater than 1 kg ,dm^ -3 , then the molarity (M) and molality (m) are related as _____
- How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO_3 ? The concentrated acid is...
- The volume of ethyl alcohol (density 1.15 g/cc) that has to be added to prepared 100 cc of 0.5 M ethyl solution in water is...
- 1000 g of aqueous solution of Na_2CO_3 contains 10 g of sodium carbonate. Concentration of solution is _________
- A solution of Al_2(SO_4)_3 (d = 1.253 gm/mL) contain 22% salt by weight. The molarity and molality of the solution is _________...
- Molarity is defined as ________ [MH CET 2015]
- In a flask at a certain temperature, there are 2 g H_2 and 8 g O_2 . The mole fraction of H_2 in the given mixture is ________
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Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration