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light of wavelength 700 nm is incident on the face of a fused quartz prism n 1458 at 700 nm at an incidence angle of
water expands when it freezes how much work does 100 g of water do when it freezes at 0 degrees celcius and pushes back
a soccer ball is kicked with an initial speed of 30 ms at an angle of 25 degrees with respect to the horizontal find
given the information given below what is the standard enthalpy change for the reaction ws 3h2og gt wo3s 3h2g 2ws
what quality of heat is required to change the temperature of 300g of water at 10cto
when cruising at 75 mph on a highway a cars engine develops 45 hp the cars engine has a thermodynamic efficiency of 25
what volume of oxygen is comsumed when 300 moles of carbon monoxide is produced in 2c o2 -gt
a 0030 kg lead bullet hits a steel plate both initially at 20c the bullet melts and splatters on impact assume that 80
gasohol is a mixture of ethanol and gasoline used to increase the oxygen content of fuels and thus reduce pollutants
a light ray is incident upon a plane interface between two materials the ray makes an incident angle with the normal to
a synthesis gas at 500degc that analyzes 64 co2 02o2 40 co 508 h2 and the balance nitrogen is burnt with 40 dry excess
a sample of gas has a volume of 340l at 100c what will be its volume be at 100c pressure rremaining
you have already developed a thesis statement and developed an outline in which you explored two 2 real-life
which acid ionization constant would indicate the strongest acid a 13 x 10-1 b 9 x 10-8 c 15 x 10-2 d 35 x
hydrocyanic acid hcn is a weak acid ka value is 40 x 10-10 what is the h-1 in 010m solution of
cliff and will support the board at each end so that it is horizontal a 51 kg boulder is placed on a 200 m long board
write an equation for the ionization of each of the following amines in water consider if you need a double or single
a person starts from rest at the top of a large frictionless spherical surface and slides into the water below at what
in a carbonate buffer at ph 73 what species of carbonate form the buffer what are the relative amounts and does the
the solubility product constant ksp for the dissolution of caf2 as represented by the chemical equation is 34 x 10-11
500 g sample of aluminium pellets specific heat capacity 089 j oc-1 g-1 and a 1000 g sample of iron pellets specific
concentrated sodium hydroxide naoh is 194 m has a density of 154 gml and is a strong electrolyte what is the molality
what is the total pressure when 100 l of methane ch4 at stp and 400 l of oxygen at stp are mixed in a 120-shyl
estimate the enthalpy change for the combustion of one mole of ethanol c2h5oh using average bond dissociation
a wire with a length of 16 m and a mass of 062 kg is in a region of space with a magnetic field of 071 t what is the