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if 25ml of 02 m h3po4 solution is required to neutralize 60ml of a baoh2 solution then what is the molarity of hte
1 explain how many mmol of naoh will react completely with 50ml of 15m h2c2o42 explain how many moles of h3o are
a piece of iron 12 mm by 15 mm has a mass of 36 grams explain what is the thickness of the piece of iron in mm given
a solution of 500 g of lauryl alcohol in 0100 kg of benzene freezes at 41c explain what is the approximate molar mass
in a gaseous 2l reaction system 200 mol of methane ch4g is added to 1000 mol of chlorine cl2g at equilibrium the system
state a short paragraph or use a graphic organizer to illustrate the relationship among the subsequent concepts
a explain how would you make 100ml of a carbonic acid buffer at 02 m as well as ph 98 using 05 m hco3 and either 01 m
the value of kp for the reaction under is 0090 at 25 celsius originally h2og and cl2g are combine at partial pressures
a 100 l container of water was passed through a solid phase extractor as the water passed throughout the extractors the
state an expression for the concentration of a spiked sample x if the 5ml of sample with analyte concentration c was
a buffer solution was prepared by adding 85ml of a 08 m acetic acid solution and 80ml of a 031 m sodium acetate
1 explain which of the subsequent elements have two unpaired electrons and consequently are paramagneticna mg al si p s
phototransduction utilizes a signal transduction cascade similar to mechanisms inspired by hormones and
myoglobin an iron- as well as oxygen-binding protein found in the muscle tissue of vertebrates is 0316 fe by mass if a
while ammonium chloride dissolves in water the solution becomes colder a is the process endothermic or exothermic b
1 a baseball weighs 220g top speed for a professional pitcher is about 100 mph when he throws a fast ball determine the
compute the maximum wavelength of radiation that could have sufficient energy to effect the dissociation of nitric
if the mixing ratio of ozone in a polluted urban atmosphere is 50ppbv compute its concentrationa in mg m-3b in
a particular reactant decomposes with a half-life of 175s while its initial concentration is 0347 mthe same reactant
a 218 g vitamin c tablet was melt in water it took 2845ml of 0124 moll sodium hydroxide to neutralize the ascorbic acid
explain when 133 g of vitamin k is dissolved in 250 g of camphor the freezing point of the solution is lowered by
the decomposition of di-t-butyl perocide at 4278 k is a first-order reaction with a rate constant of 00192
the price of gold is 625 per troy ounce at this writing explain how much heat in j is needed to increase the
explain how many milliliters of a stock hcl solution labeled specific gravity 119 as well as assay 38 will be needed to
utilize the standard enthalpies of formation from appendix ii a-7 to a-12 to compute the enthalpy change in kj for the