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A compound containing selenium also fluorine is decomposed in the laboratory and produces 2.231 g of selenium also 3.221 g of fluorine. Determine the empirical formula of the compound.
The nickel-cadmium battery cell has a standard potential of +1.20 V. The cell reaction is: 2 NiO(OH)(s) + Cd(s) + H2O(l) --> 2Ni(OH)2(s) + Cd(OH)2(s) What is the standard free energy change for this reaction
calculate the specific heat of molybdenum metal in rm jg cdot circ c. the specific heat of water is 4.184rm jg cdot
A sample that has the formula MgCl2.6H2O loses a portion of water when it is dried in an oven but undergoes no other changes. If the student started with 10.000 g of the compound, and ends with a residue that weighs 7.342 g whats the formula of th..
What is the percent purity of the calcium hydroxide if the titration requires 13.88 mL of the acid to reach the endpoint
consider a .7 L of a buffer composed of 0.4 M HClO and 0.5 NaClO? How many moles of strong base could this buffer withstand?
An unknown gas is found to effuse at a rate that is 1.864 times faster than Br2 at the same temperature. What is the identity of the gas.
total ion concentration what conductivity should be observed for 0.050 M Na2SO4?
in the reaction between potassium carbonate and calcium nitrate balanced eq k2co3 cano32--gt k2no32 caco3 why wouldnt
Determine the osmotic pressure of a solution that is 0.200 M in glucose and 0.100 M in sodium chloride at 37.0 degrees celsius. Assume no ion pairing.
the formula c6h12o6 is a source of many conversion factors. write at least three of them. how many moles of al atoms
calculate the fraction of atom sites that are vacant for lead atits melting temperature of 327oc 600k. assume anenergy
proportional only to the numbers of hydrogens that give each product when substituted for by chlorine. What would be the relative yield of each product?
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