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initially the switch in the figure below is open and the capacitor is uncharged v 3 v and c 18 microf how much charge
a spherical pot of hot coffee contains 075l of liquid essentially water at an initial temperature of 90 degree celsius
in a dry cell mno2 occurs in a semisolid electrolyte paste and is reduced at the cathode the mno2 used in dry cells can
two forces push simultaneously a stationary 2kg box in opposite directions f1 acts from left to right and does 150j of
you add an excess of solid mx in 250 g water you measure the freezing point and find it to be -0028 degrees celsius
you have two salts agx and agy with very similar ksp values you know that ka for hx is much greater that ka for hy
incoming unpolarized light of intensity 17 lux passes through a linear polarizer with its transmission axis oriented
a volume of 100ml of a 00600 msolution of cl- ions are reacted with 500 m soution of agno3 what is the max mass of agcl
a typical adult bdy contais 6 liters of blood the hemoglobin content of blood is about 155g 100ml the approximately
the concentration of mg2 in seawater is 0052 m at what ph will 99 of the mg2 be precipitated as the hydroxide salt ksp
a compound with the molecular weight of 39198 was determined to be 31 hydrogen 315 phosphorous and 654 oxygenh as in
another way of looking at the fact that all objects have wave-like properties is diffraction waves diffract as they
suppose that a fully charged lead-acid battery contains 150 of 500 what will be the concentration of in the battery
a glass flask whose volume is 100037cm3 at 0 degree celsius is completely filled with mercury at this temperature when
a chemist needs a ph 35 buffer should she use naoh with formic acid ka 18x10-4exp or with aceticacid ka 18x10-5 exp
a 684-kg bungee jumper is standing on a tall platform h0 454 m the bungee cord has an unstrained length of l0 873 m
determine the percent by mass of all elements in the compound sodium carbonate decahydrate better known as washing
what is the molar composition of the vapor in equilibrium with a boling liquid that has a composition of 60 a and 40
a student prepeares a cold pack by dissolving 30 grams of ammonium nitrate in 100 g of water at 20 degrees celcius to 0
an astronomer observes electromagnetic waves emitted by oxygen atoms in a distant galaxy that have a frequency of 5710
the h per mole of cacl-810kj calculate the final temperature of an aqueous solution if 30g of cacl2 is added to 100 ml
a 921 kg car is moving rightward with a speed of 290 ms the driver slams on the brakes and the car skids to a stop over
some salts like silver chloride agcl are insoluble in water what can we conclude if anything regarding the energy
it is desired to construct a solenoid that will have a resistance of 560 at 20degc and produce a magnetic field of 400
1 you have a 1340g sample of water at -30 oc and you heat it until you have gaseous water at 140 oc calculate the