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explain how much energy must be invested for a proton to approach a lithium atom without any electrons at the distance
a volume of 50 ml of 400 m hbr at 2435 c is added to 50ml of 400 m naoh as well at 2435 c the final temperature is 2706
at 25 c an unknown gas q diffuses at a rate 165 times faster than that of propane c3h8 explain which of these gases is
forecast what volume ml of 03000 m naoh is needed to titrate the 2500 ml of 03000 m hcl to the equivalence
state two sets of equations both molecular and total ionic with different reactions that have the same net ionic
concentrated hydrochloric acid is 375hcl by mass and has a density of 1205gcm-3 define what volume in ml of
while a 1150 g sample of iron ore is treated with 500 ml of hcl the iron dissolves in the acid to form a solution of
1 find out the normal boiling point in celsius of pure acetic acid giving that the liquid has a vapor pressure of 139
explain what would be the nal ph if 00100 moles of solid naoh were added to 100ml of a buffer solution containing 0600
explain how to do this problem a gas sample has a volume of 500 ml at 20 degree celsius define at what temperature
find out the normal boiling point in celsius of pure acetic acid giving that the liquid has a vapor pressure of 139
suppose the energy of a vibrating molecule is quantized much like the energy of an electron in the hydrogen atom the
a solution is prepared by diluting 016 mol hno3 with water to a volume of 15 l explain what is the ph of this
calcium chloride is commonly utilized in first aid hot packs the lattice energy of calcium chloride is 22234 kjm the
the thermal decomposition of calcium carbonate produces two by-products calcium oxide as well as carbon dioxide compute
while 111g of 2-methyl-2-propanol was heated with phosphoric acid a colorless gas evolved this gas was passed through a
if a gas consisting of only carbon and hydrogen has an empirical formula of ch2 the gas has a density of 165gl at 27
a 214-l sample of hcl gas at 261atm and 28 celsius is completely dissolved in 668ml of water to form hydrochloric acid
benzene may be regarded as a 04 nm square box containing six pi-electrons compute the wavelength of the light needed to
state the electron configuration of the ground state of calcium state the electron configuration of the next two
n2 3h2 ----gt 2nh3explain what is the maximum amount of ammonia that can be formed if 30 molecules of nitrogen react
explain how many grams of sodium lactate nac3h5o3 should be added to 100 l of 0150 m lactic acid hc3h5o3 to form a
explain what is the ph at the equivalence point in the titration of 0100 mhcl with 0100 m methylamine ch3nh2 the kb for
a series of lines in the spectrum of neutral li atoms rise from combinations of 1s22p12p with 1s2nd12d and occur at