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the mass of mars 640e23 kg is about one-tenth of that of the earth and its radius 3395km is about half of the earth
when 1160 of heat are added to one mole of an ideal monatomic gas its temperature increases from 272k to 275kfind the
consider the titration of 485 ml of 12 m naoh with 10 m hcl find the ph at the following pointsa at the start of the
a group of charges is found in space at a distance of 100 cm from the group of charges the total electric flux through
three capacitors all have the same capacitance when they are wired in series the equivalent capacitance is 57 f what is
titanium iv chloride ticl4 can be used to produce titania by the sol-gel method what mass of ceramic can theoretically
on earth you are able to consistently hit a golf ball 156 meters when you use your five-iron which launches the ball at
unpolarized light with an average intensity of 845 wm squared enters a polarizer with a vertical transmission axis what
a sealed cubical container 170 cm on a side contains three times avogadros number of molecules at a temperature of
naturally occurring element x exists in three isotopic forms x-28 27977 amu 9221 abundance x-29 28976 amu 470
a beaker contains 210 g of hot water at a temperature of 888oc after a while the temperature of the water falls to
consider the possible reaction when stoichiometric amounts of solutions of baoh2aq and al2so43aq are mixed the products
write a molecular equation for the precipitation reaction if any that occurs when the following solution are mixed how
a 1500 ml sample of hno3 nitric acid is titrated with a naoh sodium hydroxide solution the sodium hydroxide solution
the emf and the internal resistance of a battery are as shown in the figure if a current of 83 a is drawn from the
a mass m97 kg is suspended from a pulley with radius r0081 meters and moment of inertia i026 kgm3 the string is
methanol ch3oh formerly known as wood alcohol is manufactured commercially by the following reactioncog 2h2g ltgt
consider a small virus having a diameter of 10nm the atoms of the intracelluar fluid are confined within this box
a molecular compound contains 923 carbon and 77 hydrogen by weight if 0152 mol of the compound weighs 395 g what is its
a massless spring of spring constant 50 nm is suspended vertically set the vertical origin to the natural length of the
a 500-g sample of a material at 800 degree c is dropped into a calorimeter containing 1000g of water at 200 degree c
initially a mixture contains 0629 mol each of n2 and o2 in an 664-l vessel find the composition of the mixture when
a thin film of acetone n 125 coats a thick glass plate n 152 white light is incident normal to the film in the
what mass of ammonium chloride should be added to 265 l of a 0165 m nh3 in order to obtain a buffer with a ph of