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50 mL tincture of benzoin, an antiseptic solution contains 10 ml of benzoin. The volume percentage of benzoin is ……………..

50 ml solution of H_(2)O_(2) was treated with excess KI (s) and the solution was acidified with acetic acid. The liberated I_(2) required 40 ml of 0.5 M Na_(2)S_(2)O_(3) solution for the end point using starch is indicator. Find the molairty and volume strength of the H_(2)O_(2) solution.

50 mL sample of ozonised oxygen at NTP was passed through a solution of potassium iodide. The liberated iodine required 15 mL of 0.08N Na_(2)S_(2)O_(3) solution for complete titration. Calculate the volume of ozone at NTP in the given sample.

50 ml of water sample requires 6 ml of soap solution to produce a good lather. 1 ml of soap solution is equal to 0.001 g of CaCO_3 . Then the degree of hardness of water is

50 ml of tap water contains 20 mg of dissolved solids. The TDS value in ppm is ……………

50 ml of oxygen wre collected at 10^(@)C under 750 mm pressure. Calculate volume at STP.

50 ml of oxygen diffuses under certain conditions through a porous membrane. The volume of Hydrogen that diffuses in the same time under the same conditions is

50 mL of hydrogen diffuses out through a small hole from a vessel in 20 minutes, time needed for 40 mL of oxygen to diffuse out is: 1) 12 min2)64 min3)8 min4)32 min

50 ml of H_(2),O is added to 50 ml of 1xx 10^(-3) M barium hydroxide solution. What is the P^(H) of the resulting solution?

50 ml of given H_(2)O_(2) solution is added to excess KI solution in acidic medium. The liberated I_(2) requires 20 ml of 0.04 M standard Hypo solution. Weight of H_(2)O_(2) present in 250 ml of given solution is

50 ml of given H_(2)O_(2) solution is added to excess KI solution in acidic medium. The liberated I_(2) requires 20 ml of 0.04 M standard Hypo solution. Molarity of H_(2)O_(2) solution is

50 mL of an aqueous solution of H_(2)O_(2) was reacted with excess of KI solution and dilute H_(2)SO_(4) The liberated iodine requried 20 mL 0.1 N Na_(2)S_(2)O_(3) solution for complete interaction calculate the concentration of H_(2)O_(2) in gL^(-1)

75 ml of gas A effuses through a pin hole in 73 seconds the same volume of SO_(2) under indential conditions effuses in seconds. Calculate the molecular mass of A.

50 ml of gas A effuse through a pin -hole in 146 second . The same volume of CO_2 under identical condition effuse in 115 seconds . Calculate the molecular mass of A .

50 mL of 10 N H_(2)SO_(4), 25 mL of 12 N HCl and 40 mL of 5 N HNO_(3) are mixed and the volume of the mixture is made 1000 mL by adding water. The normality of the resulting solution will be :

50 mL of 0.2 M ammonia solution is treated with 25mL of 0.2 M HCl . If pK_(b) of ammonia solution is 4.75 , the pH of the mixture will be

50 ml of 0.2 N H_(2) SO_(4) is mixed with 100 ml of 0.4 N KOH solution and 1.85 lit of distilled water is added . The pH of resulting solution is (log 1.5 = 0.176)

50 ml of 0.05 M Na_(2)CO_(3) is titrated against 0.1 M HCl. On adding 40 ml of HCl, pHof the resulting solution will be [{:(H_(2)CO_(3):pK_(a_(1))=6.35,pK_(a_(2))=10.33),(log3=0.477,log2=0.30):}]

50 mL each of gases A and B take 150 and 200 seconds respectively for effusing through a pin- hole under the similar conditions . If molecular mass of B is 36 , the molecular mass of A will be nearly

50 ml H_(2)O_(2) is completely oxidised by 10 ml, 0.2 N KMnO_(4) solution in acidic medium. The strength of hydrogen peroxide is

50 litres of water containing Ca(HCO_3)_2 when converted into soft water required 22.2 g of Ca(OH)_2. Calculate the amount of Ca(HCO_3)_2 per litre of hard water.

50 litre of dry N_(2) is passed through 36g of H_(2)O" at "27^(@)C. After passage of gas, there is a loss of 1.20g in water. Calculate vapour pressure of water.

50 gm of sample of sodium hydroxide required for complete neutralisation, 1 litre 1 N HCl. What is the percentage purity of NaOH is

5.0 g of H_(2)O_(2) is present in 100 mL of the solution. The molecular mass of H_(2)O_(2) is 34. The molarity of the solution is :

50 g of a sample of NaOH required for complete neutralisation, 1 litre N HCl. What is the percentage purity of NaOH ?

50 g CaCO_(3) is allowed to dissociated in 22.4 lit vessel at 819^(@)C . If 50% of CaCO_(3) is left at equilibrium , active masses of CaCO_(3) , CaO and CO_2 respectively are

5.0 cm^(3) of H_(2)O_(2) liberates 0.508 g of iodine from an acidified KI solution. The strength of H_(2)O_(2) solution in terms of volume strenth at STP is

50 cm^(2)of 0.2 N HCl is titrated against 0.1 N NaOH solution. The titration is discontinued after is completed by adding 0.5 NKOH. The volume of KOH required for completing the titration is

5-Oxohexanal is obtained by ozonolysis of

5 moles of SO_(2) and 5 moles of O_(2) react in a closed vessel. At equilibrium 60% of the SO_(2) is consumed . The total number of gaseous moles(SO_(2),O_(2)andSO_(3))in the vessel is :-

5 moles of SO_(2)and 5 " molesof " O_(2)are allowed to react . At equilibrium , it was found that 60%SO_(2) is used up . If the pressure of the mixture is one atmosphere, the partialpressureof O_(2) is

5 moles of dihydrogen react with 5 moles ofdinitrogen calculate the mole of Ammonia product.

5 moles of Ba(OH)_(2) are treated with excess of CO_(2). How much Ba(OH_(2) will be formed?

5 moles of a gas in a closed vessel was heated from 300 K to 600 K. The pressure of the gas doubled. The number of moles of the gas will be

5 moles of A, 6 molesof Z are mixed with suffifcient amount of C to finally produce F. Then find the maximum molesof F which can be produced. Assuming that the product formed can also be reused. Reactions are : A + 2Z rightarrow B B + C rightarrow Z + F

5 moles gas are introduced in 1 litre container at 47^(@)C. Select the correct option(s). [R=0.08litre-atm/mol-K]

5 mole of an ideal gas expands isothermally and irreversibly from a pressure of 10 atm to 1 atm against a contant external pressure of 1 atm. W_("irr") at 300K is:

5 mL water in watch glass and 10 mL in beaker which water will disappear first ? Why ?

5 mL of N HCl, 20 mL of N//20 H_(2)SO_(4) and 30 mL of N//3 HNO_(3) are mixed together and volume made to one litre. The normality of the resulting solution is :

5 mL of N HCl, 20 mL of N/2 H_(2)SO_(4) and 30 mL of N/3HNO_(3) are mixed together and volume made to 1L. The normality of resulting solution is

5 mL of N HCI, 20 mL of N/2 H_2SO_4 and 30 mL ofN/3 HNO_3 are mixed together and the volume made to 1 litre. The normality of the resulting solution is:

5 mL of a gaseous hydrocarbon was exposed to 30 mL measure 25 mL of which 10 mL are absorbed by NaOH and the remainder by pyrogallol. Determine molecular formula of hydrocarbon. All measurements are made at constant pressure and temperature.

5 kg of water contain 24 mg of MgSO_4and 32.4 mg of Ca(HCO_3)_2 . The total hardness of water is

5% ionization is occur in 0.01 M CH_3COOH solution. Calculate its dissociation constant.

5 g of CuSO_(4). 5H_(2)O is intendedto be prepared by using CuO and four times the stoichiometric amount of H_(2)SO_(4). Assuming that 10% of the material is lost in crystallisation, what weight of oxide should be taken and how many litre of mL of a 5 M H_(2)SO_(4)?

5 g of an unknown hgas has pressure P at temperature TK in a vessel. On increasing the temperature by 50^(@)C, 1g of the was given out to maintain the pressure P. What was the original temperature of the gas ?