Description : Express the relation between conductivity and molar conductivity of a solution held in a cell. -Chemistry
Last Answer : Λm = KC= Conductivity Concentration
Description : What is meant by ‘limiting molar conductivity’? -Chemistry
Last Answer : The molar conductivity of a solution at infinite dilution is called limiting molar conductivity and is represented by the symbol Λm.
Description : Which will have greater molar conductivity ? Solution containing 1 mol KCl in 200 cc or 1 mol of KCl in 500 cc.
Last Answer : Ans. 1 mol of KCl in 500 cc.
Description : What is the conductivity of molar ?
Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .
Description : The highest molar conductivity will be exhibited by the complex .
Last Answer : The highest molar conductivity will be exhibited by the complex . A. `[Cr(NH_(3))_(6)]Cl_(3)` B. `[Cr(NH_(3))_ ... (2)]Cl` D. `[Cr(NH_(3))_(6)Cl_(3)]`
Description : Arrange the following compounds in order of increasing molar conductivity . `(i) K[Co(NH_(3))_(2)(NO_(2))_(4)]" " (ii) [Cr(NH_(3))_(3)(NO_(2))_(3)]` `
Last Answer : Arrange the following compounds in order of increasing molar conductivity . `(i) K[Co(NH_(3))_(2)(NO_(2))_(4)]" ... )" " (iv) [Cr(NH_(3))_(6)]Cl_(3)`
Description : Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar concentration ?
Last Answer : Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar ... N (CH_(3))_(3)Br^(-)`
Description : Among the following, which surfactant will form micelles in aqueous solution at the lowest molar concentration at ambient conditions?
Last Answer : Among the following, which surfactant will form micelles in aqueous solution at the lowest molar concentration at ambient ... (+)(CH_(3))_(3)Br^(-)`
Description : How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry
Last Answer : Stability of a complex in solution means the measure of resistance to the replacement of a ligand by some other ligand. This stablility can be expressed in terms of equilibrium constant. Let the ... is its tendency to donate electron pair and therefore, more is the stability of the complex.
Description : cm. What is molar solution ?
Last Answer : : If half a mole ( 0.5 mole) of liquid per liter volume of a solution is dissolved at a given temperature , then the solution should be dissolved in cm. Called molar solution.
Description : What is molar solution ?
Last Answer : Molar solution: If one mole of liquid is dissolved in one liter of solution, it is called 1 molar solution. For example, if 32 grams of oxygen per liter is dissolved.
Description : FeSO4 solution mixed with (NH4 ) 2 SO4 solution in 1 : 1 molar ratio gives the test of Fe2+ ion but CuSO4 solution mixed with aqueous ammonia in 1 : 4 molar ratio does not give the test of Cu2+ ion. Explain why ?
Last Answer : When FeSO4 and (NH4 ) 2 SO4 solution are mixed in 1 : 1 molar ratio, a double salt is formed. It has the formula FeSO4 (NH4 ) 2 SO4 . 6 H2O. In aqueous solution, the salt dissociates. When CuSO4 and NH3 are mixed in the molar ratio of 1 : 4 in solution, a complex [Cu (NH3 ) 4 ] SO4 is formed.
Description : A molar solution is one that contains one mole of a solute in [IIT 1986] (A) 1000 g of the solvent (B) One litre of the solvent (C) One litre of the solution (D) 22.4 litres of the solution
Last Answer : (C) One litre of the solution
Description : The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene
Last Answer : ANSWER: W -- CaCl2
Description : A sample of grapefruit juice at 25 degrees Celsius has a hydronium concentration of 1.78 X 10-3 molar. What is the pH of the solution? w) 2.22 x) 2.75 y) 3.25 z) 6.33
Last Answer : ANSWER: X -- 2.75
Description : If one begins with a 12 Normal solution of HCl and wishes to make a 2 Molar solution, what will be the ratio of 12N HCl to the final solution volume?
Last Answer : ANSWER: 1:6
Description : What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3
Last Answer : ANSWER: Y -- 1
Description : The pH of a 0.005 molar solution of calcium hydroxide is:
Last Answer : ANSWER: 12
Description : 2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar
Last Answer : ANSWER: X -- 2 MOLAR
Description : You have a solution of 5 molar Sodium Phosphate and n to prepare a solution of 500 millimolar Sodium Phosphate. How much water would you add to 100 milliliter of the original 5 molar solution to produc the 500 millimolar solution?
Last Answer : ANSWER: 900 MILLILITERS (or 0.9 LITERS)
Description : The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation. (A) Gibbs-Duhem (B) Van Laar (C) Gibbs-Helmholtz (D) Margules
Last Answer : (A) Gibbs-Duhem
Description : 6. “The refractive index of diamond is 2.42”. What is the meaning of this statement in relation to speed of light? [Delhi] -Chemistry-10
Last Answer : Answer. hope this helps you
Description : What is the relation of chemistry with mathematics ?
Last Answer : : There is a deep connection between chemistry and mathematics.
Description : Explain relation between chemistry and chemical engineering.
Last Answer : Relation between chemistry and chemical engineering: 1. Chemical Engineering is the technology of Chemistry. 2. Chemistry deals with unit process whereas chemical engineering covers unit operation as ... in limited quantity whereas to get large quantity of products chemical engineering is needed.
Description : in titration of 25 mL of the solution containing Cu2+ with the concentration of 0.01 molar , with SCN – (0.01 Molar) , if we use the indicator that changed its color in PSCN= 9. Calculate the error of titration PKSP(CuSCN) =13.4?
Last Answer : just the color change from the indicator. Thus, a careful selection of the indicator will reduce the indicator error. For example, if the equivalence point is at a pH of 8.4, then the ... are in the range of aqueous pH changes are of little use. Instead, the titrant and indicator used
Description : Partial molar free energy of an element A in solution is same as its (A) Chemical potential (B) Activity (C) Fugacity (D) Activity co-efficient
Last Answer : (A) Chemical potential
Description : Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance ... temperature and pressure is (A) 0 (B) 1 (C) ∞ (D) None of these
Last Answer : (B) 1
Description : A solution containing 2.675 g of `CoCl_(3).6NH_(3)` (molar mass `= 267.5 g mol^(-1)`) is passed through a cation exchanger. The chloride ions obtained
Last Answer : A solution containing 2.675 g of `CoCl_(3).6NH_(3)` (molar mass `= 267.5 g mol^(-1)`) is passed through a ... _(3)]` D. `[CoCl(NH_(3))_(5)]Cl_(2)`
Description : What is the molar mass of haemocyanin and the freezing point of the solution when an aqueous solution is prepared by dissolving 1.5 grams of haemocyanin a protein obtained from crabs in 0.25 litres of?
Last Answer : Haemocyanins are a group of proteins.
Description : Number of gram equivalents of solute per liter of solution is called C A. Simple solution B. Molar solution C. Normal solution D. Molal solution
Last Answer : Normal solution
Description : Number of gram of solute per 1000 gm of solvent is called a. Normal solution b. Molar solution c. molal solution d. simple solution
Last Answer : molal solution
Description : Number of gram equivalents of solute per liter of solution is called a. Normal solution b. Molar solution c. molal solution d. simple solution
Description : Number of grams of solute per liter of solution is called a. Normal solution b. Molar solution c. Molal solution d. simple solution
Last Answer : Molar solution
Description : Molar gas constant has value A. 7 J mol-1 K-1 B. 8 J mol-1 K-1 C. 8.31 J mol-1 K-1 D. 5 J mol-1 K-1
Last Answer : 8.31 J mol-1 K-1
Description : According to the 'law of mass action', the rate of reaction is directlyproportional to the (A) Equilibrium constant (B) Volume of the reaction vessel (C) Nature of the reactants (D) Molar concentration of the reactants
Last Answer : (D) Molar concentration of the reactants
Description : The unit of equilibrium constant of a chemical reaction is the same as that of (A) Molar concentration (B) Temperature (C) Internal energy (D) None of these
Last Answer : (D) None of these
Description : Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K (A) 0 (B) ∞ (C) 50 (D) 100
Last Answer : (B) ∞
Description : The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1is the activity co-efficient of component 1, is (A) A . x22 (B) Ax1 (C) Ax2 (D) Ax12
Last Answer : (A) A . x22
Description : The mass of one mole of a substance in grams is known as ______. A. Molar weight B. Molar mass C. Molar volume D. Molar constant
Last Answer : Molar mass
Description : The gas constant of a certain gas is the ratio of: A. Universal gas constant to molar mass B. Universal gas constant to atomic weight C. Universal gas constant to atomic number D. Universal gas constant to number of moles
Last Answer : Universal gas constant to molar mass
Description : 8.Distinguish among soda water, milk and muddy water in a tabular form under the following heads : (i)Stability (ii)Filterability (iii)Type of mixture (iv) Tyndall effect -Chemistry
Last Answer : Here is the answer ..Sorry for bad handwriting...Hope it helps....They contain different types of minerals To achieve different tastes, club soda, sparkling, and tonic water cont A) homogeneity: ... . ... The main difference between the two is that tonic water also contains quinine and sweeteners.
Description : The relation between bond length and bond energy is - (1) Lower the bond energy, shorter the bond length (2) They are not related (3) Higher the bond energy, shorter the bond length (4) Higher the bond energy, longer the bond length
Last Answer : (3) Higher the bond energy, shorter the bond length Explanation: Generally, the shorter the bond, the stronger the bond and the higher the dissociation energy. Bond energy is a measure of the strength in a chemical bond.
Description : A solution containing 30 g of non-volatile solute exactly in 90 g of water has a vapour pressure of 2.8 kPa at 298 K. Further 18 g of water is added to this solution. The new vapour pressure ... K. Calculate (i) the molecular mass of solute and (ii) vapour pressure of water at 298 K -Chemistry
Last Answer : For a very dilute solution ∴ Molecular mass, MB = 34 g/mol.
Description : 13.a) What is solute and solvent in aerated drinks? b) Given a solution of substance 'A' how will you test whether it is saturated or unsaturated with respect to 'A' at the given temperature. -Chemistry
Last Answer : (a) No solute and solvent is available in aerated drinks. (b) in the given solution add small amount of solute A, if A dissolved a daydream a transparent solution is formed then it is an unsaturated solution and if A doesn't dissolved and a precipitate is formed then it's a saturated solution
Description : a) 110 g of salt is present in 550g of solution. Calculate the concentration of solution. b) 10 ml of H2SO 4 is dissolved in 90 ml of H2O. Calculate the concentration of solution. -Chemistry
Last Answer : The concentration of salt is determined by the division of mass of the solute by the mass of the solution and the percentage is obtained by multiplying the value by 100. The quotient of the division of 110 by 550 is 0.2 here. So after multiplying it with 100, it is 20%. So the concentration is 20%.
Description : The concentration of a salt solution in terms of mass by mass percentage is 20 and the mass of the solution is 550 g. Determine the mass of solute present in the solution. -Chemistry
Last Answer : Mass by mass percentage = 20% Mass of solution= 550gram Mass of solute/mass of solution multipled by 100 Therefore, 20/100 = 1/5 Hence, Mass of solute=Mass of solution/5 = 550gram/5 = 110Gram Therefore, The mass of solute is 110gm
Description : 4.A solution of acetone contains 30 ml of acetone in 570 ml of water. Calculate the percentage concentrationof the solute in the solution. -Chemistry
Last Answer : Volume of acetone =30 ml Volume of water =570 ml Volume of solution = 30 + 570 = 600 ml Concentration of solute in solution = 30 / 600 x 100 ... = 30 / 600 x 100 = 5%
Description : Classify the following mixtures as homogeneous and heterogeneous. (i)Tincture of iodine (iv)Sugar solution (ii)Smoke (iii)Brass -Chemistry
Last Answer : In the above classification, tincture of iodine, brass and sugar are homogenous mixture while the smoke is heterogeneous mixture. Tincture of iodine is a liquid solution, brass is an alloy made ... component. Smoke on other hand is composed of moisture and gas thus making the mixture heterogeneous.
Description : Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Write two observations. -Chemistry
Last Answer : Answer. It is because displacement reaction takes place. Iron displaces copper from copper sulphate solution and forms pale green coloured solution of FeS04 and reddish brown copper metal gets deposited. Fe(s) + CuS04(aq) ——–> FeS04(aq) + Cu(s)