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Metallic tin in presence of HCl is oxidised by K2Cr2O7 to stannic chloride. What volume of decinormal dichromate solution will be reduced by 1 g of tin ? At. wt. of Sn = 118.7.
Calculate how many molecules of C 2 H 6 S (ethyl mercaptan )are contained in 1.0 micro liter sample if the given density = 0.84 g/mL
What mass (in grams) of steam at 100°C must be mixed with 375 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 66.0°
Some of the formulas below could be either molecular or empirical formulas; however, some could only be molecular formulas. Which of the following formulas must be molecular formulas
What volume of concentrated HCl is necessary to completely neutralize the 10 mL of 1.5 M NaOH used?
Determine the calorimeter constant or eat capacity, for this calorimeter if the specific heat for water= 4.184 J/goC.
calculate the pH of solution formed by mixing 150 mL of 0.10M HC7H5O2 with 100 mL of 0.30M NaC7H5O2. The Ka for HC7H5O2 is 6.5 E -5
The below table lists pressure and volume measurements for air in a cylindrical piston of an air compressor. The variables may be assumed related
Arrange the following molecules in the expected order of increasing boiling points: carbon tetrabromide, CBr4; butane, CH3CH2CH2CH3; fluorine, F2
Pure colored substances mostly exhibit a single peak (i.e. max) in the visible; therefore the simple rules of complementary colors apply. Mixtures are a little more complicated.
Determine the enthalpy change for the reaction. 2NO2 (g) -> 2NO(g) + O2(g) These are the given equations: NO + O3 -> NO2 + 02 DeltaH = -198.9 kJ / mol O3 -> (3/2)O2 DeltaH = -142.3 kJ/mol
A renowned laboratory reports a quadruple-point coordinates of 10.2 Mbar and 24.1 degrees C for four-phase equilibrium of allotropic solid forms
a 27.7 sample of CO2(g) was collected over water at 25 degree celcius ans 1atm.What pressure due to CO2(g) (the vapour pressure of water at 25c is 23.8 torr? what will the volume be of CO2 be at the same temp and pressure after removing the water ..
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