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how many grams of feoh2 ksp 18 10-15 will dissolve in one liter of water buffered at ph
starting from rest a 54-kg block slides 210 m down a rough 300deg incline the coefficient of kinetic friction between
what is the molar mass of a compound that diffuses 275 times more slowly than argon at the same temperature and
a balloon was filled by mixing 100g of neg and 100g of o2g what is the mole fraction of oxygen in the balloonif the
a hydrocarbon with the empirical formula c2h3 and molecular formula cahb takes 1157 times longer to effuse through a
a gaseous hydrocarbon with the empirical formula ch2 was placed in a 200l container at a temperature of 101oc the
you throw a 1 kg rock down a 5m-deep wishing well it hits the water with a velocity of 75 ms how much work did air
an olympic high jumper wants to cross a bar 19 m off the ground while mantaining a velcity of 098 ms how fast does she
you want to propel a 150 kg t-shirt from a spring-loaded launcher to a velocity of 100 ms how far back do you have to
how many moles of helium gas are in a balloon if the temperature of the gas is 150 degc the volume is 15 l and the
define the following types of bonds and how they are formed ester anhydride amide phosphoester phosphoanhydride
explain the oxidation states of carbon particularly relating to alcohols aldehydes and ketones acids and
please describe functional groups and their nomenclature particularly hydroxyl groups carboxylic acids amines amides
space vehicles traveling through earths radiation belts can intercept a significant number of electrons the resulting
when d2 reacts with ethylene in the presence of a finely divided catalyst ethane with two deuteriums ch2d-ch2d is
a cork ball of mass 120 g is placed between two very large horizontal planes of charge the bottom plane has a uniform
a transparent rod 300 long is cut flat at one end and rounded to a hemispherical surface of radius 100 cm at the other
balance the equation for the following reaction in a basic solution give balanced equations for both half-reactions and
in a battery water is used as a salt bridge and the two electrodes are carbon and aluminum find the standard reduction
a car of mass m is on an icy driveway inclined at an angle 160deg as shown in the figurea determine the acceleration
calculate the ph of each of the following strong acid solutions remember in dilution m1v1 m2v2 for part ba 500 ml of
at the end of a wild roller-coaster ride the train of cars must come to a graceful stop at the loading station before
two gases a and b are held at the same temperature one of the gases is diatomic and the other is not it is found that
a suppose a hockey puck slides down a frictionless ramp with an acceleration of 400 ms2 what angle does the ramp make
consider a sample of 35g of water which has an equilibrium vapor pressure of 238mmhg at 250 degc if this sample is