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Thiamine hydrochloride(C12H18ON4SCl2) is awater soluble form of thiamine (vitamin B1; Ka=3.37 X 10^-7). How many grams of the hydrochloride must be dissolved in 10.00 mL ofwater to give a pH of 3.20?
Does your result agree with the measured overall rate law expression? If not, under what conditions would agreement be observed?
Calculate ?Go (in J) for 1 moles of electron(s) in each half-reaction and a standard potential of 0.27 V.
Calculate the pressure of dry oxygen. If the total pressure of oxygen generated over water is measured to be 638 torr and the temperature is 22 degress celcius?
If the reaction 2H2S(g) 2H2(g) + S2(g) is carried out at 1065C, Kp = 0.0120. What is the value of Kc for the reaction H2(g)+1/2S2(g) H2S(g) at 1065C ?
If you wish to obtain 10.0 grams of copper metal from copper(II) sulfide, what mass of copper(II) sulfide (in grams) must you use?
A system absorbs 198kJ of heat and the surroundings do 120kJ of work on the system. What is the change in internal energy of the system
Draw the skeletal structure for trans-1-bromo-2-isopropylcyclopentane. (Hint: Make sure the tapered end, i.e. the thin end, of the wedge bond is attached to the parent.)
When ethane C2H6 rea cts with chlorine Cl2 the main product is C2H5Cl but other products containing Cl such as C2H4Cl2 are also obtained in small quantities.
An element has three naturally occurring isotopes, calculate the percent abundance and the atomic mass
Pretend that the HCl of this reaction is used in the neutralization of 45mL of a solution of Ga(OH) 3. What was the molarity of the Ga(OH)3 solution
a nonelectrolyte of 558.9 grams are fully dissolved in sufficient h2o to produce an aqueous solution of 2.50 litres at
A mercury nanometer contains 2 g of Ar. A burner heats it to P-ext. at 760 torr. What is the Temperature of the gas in the bulb when the total volume is 3 L and H=76mm?
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