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a sledge loaded with bricks has a total mass of 181 kg and is pulled at constant speed by a rope therope is inclined at
by how much does the chemical potential of benzene change when the pressure exerted on a sample is increased from
what is the maximum number of phases that can be in mutual equilibrium in a four component
bruce stands on a bank beside a pond grasps the end of a 200m long rope attached to a nearby tree and swings out to
a 100-g sample of a mixture of ch4 and c2h4 reacts with oxygen at 25 degrees celcius at 1 atm to produce co2 and h20
determine the concentration of a naoh solution if 2780ml of naoh is required to neutralize 1000 ml of a 100m h2so4
a point source of light is submerged 28 mbelow the surface of a lake and emits rays in all directions on the surface of
some students observe a low-boiling fraction around 40 degrees c during the simple distillation of producing t-amyl
in the preparation of t-amyl chloride from t-amyl alcohol via a unimolecular nucleophilic substitution reaction an
calculate the minimum concentration of mg 2 that must be added to 10 m naf in order to initiate a precipitate of
assume that you pipet twenty milliliters of 0350 m cacl2 into a fifty milliliter volumetric flask and add di water to
a gas sample has a volume of 750 ml at 4 atm and 37c if the pressure changes to 5 atm and the gas is heated to 68c what
the solubility of lead ii iodide is 0064 g 100 ml at 20 deg c what is the solubility product for lead ii
a 00539g sample of iron sulfate was dissolved in dilute hcl and treated with 10 bacl2 solution the baso4 precipitate
compare the amount of energy released by the complete combustion of 1 gallon of ethanol with the amount of energy
when 150 ml of 0400 m h are mixed with 200 ml of 0500 m oh- the final temperature of the solution is 265degc what was
determine the thickness needed to reduce the intensity of a beam of gamma rays to 14th of its initial intensity in gcm2
a cache of hebrew manuscripts known as dead sea scrolls was found in 1947 the activity of carbon-14 in the linen
1000 g of ice at 0degc is added to 1250 ml of liquid water at 400degc in a styrofoam cup calorimeter the specific heat
a rock is kicked horizontally at a speed of 10 ms from the egde of a cliff the rock strikes the ground 55 m from the
a 12kg box is released from the top of an incline that is 5mlong and makes an angle of 40degrees to the horizontal a
3agno3aqsccl3aq3agclsscno33aqwhat volume of 0385 m scandiumiii chloride is required to completely react with 220 ml of
we will define stp as 25 c and 100 bar if a container holding neon gas is at volume of 526 l at stp and the gas is
there are 3344 x 1025 molecules in 1 kg 1 litre of water what is the distance between the
when a person with hypoventilation is placed on a ventilator an air mixture is delivered at pressures that are