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(1) Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 28.4 g of water (b) 1.00 oz of lead
(2) Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 45.8 g of nitrogen gas (b) 1.00 pound of aluminum metal
Please show the work
There are several derivatives of 13C or 14C glucose that are available for sale from radiochemical supply companies. These labeled compounds are quite useful for metabolic tracer studies. To demonstrate how these are used.
Predict what would be observed and why from an aqueous mixture for each of the following (all substances are water soluble). Potassium carbonate and hydrochloric acid
Which of the following factors affect the resolution (separation) of two compounds: (A) nature of the stationary phase; (B) eluent composition; (C) amount of sorbent used; (D) color of compounds bein separated?
The ionization energies of rubidium as well as silver are 4.18 and 7.57 eV, respectively. Compute the ionization energies of an H atom with its electron in the same orbitals as in these two atoms as well as account for the difference in values.
If the vapor pressure of ethyl ether and ethyl alcohol at 20°C are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20°C
Compute the purity of acetic acid present in the sample in weight%. Define what was the pH of the solution after addition of 15.00mL of 0.1000 M NaOH. Explain what was the pH of the solution at the equivalence point
we can calculate kb for the carbonate ion if we know the ka values of carbonic acidh2co3.a is ka1 or ka2 of carbonic
A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L 1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L 1 NaOH(aq) to neutralize the excess, unreacted HCl.
A calorimeter is not a perfect insulator. For a reaction that is endothermic, will the reported (delta)H be too high, too low, or unaffected if the heat exchange with the calorimeter is ignored
Concentration of NADH was found by using beer's law using 6.22 mM cm-1 as extinction coefficient. Concentration of NADH = .0212 mM. Moles of NADH that are present in 1.02 mL sample was found by : .0212 mM x 1.02 mL = .021624 mM/mL
heat from a mountain climber's stove at an elevation where the boiling point of water is 89 degrees celsius, how many kJ are required to boil the water?
if 50 ml of water at 22.3 degrees celsius is mixed with 50 ml of water at 47.7 degrees celsius in such a way that no
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