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In an alkalinity titration of a 100.0-mL sample of water from a hot spring, 2.56 mL of a 0.0035 M solution of HCl is needed to reach the first equivalence point (pH=8.3) and another 10.42 mL is needed to reach the second equivalence point (pH=4.0). If the alkalinity of the spring water is due only to the presence of carbonate and bicrabonate, what are the concentrations of each of them?
The reversible chemical reaction A+B=C+D part b: What is the final concentration of D at equilibrium if the initial concentrations are[A] = 1.00 m and [B] = 2.00 ? Express the molar concentration numerically using two significant figures.
Explain what is methylphenidates purpose and its chemical structure? Also determine how does it affect the body of human beings ,what makes up that compound , what organs do it impact?
If a random sample of this element collected from the tail of a comet has an weighted average atomic mass of 10.788 amu, what is the percent abundance of the lower-mass isotope?
This is a fact that Bromine(Br) is larger than chlorine(Cl) but indication of equilibrium constant suggests that a bromo substituent has a less preference for the equatorial position than chloro substituent? Explain it briefly?
describe the mechanism for the reaction of bromine to Ethene and state the type
How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.
How would you synthesize 3-isopropyl sulfide cyclopentanol. - using less than a 6 carbon molecule.
describe each reaction and provide the name of all the chemical formula involved for each number.1.na2co3s sio2s -gt
A voltaic cell consists of an Au/Au3+ electrode (E° = 1.50 V) and a Cu/Cu2+ electrode (E° = 0.34 V). Calculate [Au3+] if [Cu2+] = 1.20 M and Ecell = 1.13 V at 25°C.
Although Pd (II) complexes with monodentate O-donor ligands are not as plentiful as those with P- , S- and As-donor Ligands
A 5% solution by weight of an unknown non-electrolyte in water has a density of 1.018 g/mL if this solution exhibits an osmotic pressure of 3.57 ATM at 25C what is the MM of the unknown
Calculate standerd enthalpy of formation for dimand given that C graphite + oxygen(g) -------CO2(g) H = -393,5kj/m dimond(C) + O2(g)------CO2 (g) H = -395.1kj/m
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