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For the reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) delta H = -91.0 kJ a) what is delta h for the reaction-------------------------------2KCl + 3O2 ---> 2KClO3 b) what is the delta H for the reaction-------------------------KClO3 ------> KCl + 3/2 O2
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
the following results were obtained for a spectrophotometric titration that was carried out at 600 nm to measure cu2in
25.0 ml of a 0.2450 M NH4Cl solution is added to 55.5ml of 0.1655 M FeCl3. What is H concentration of chloride ion in the final solution.
calculate the initial reaction rate when [O3] & [NO] remain essentially constant at the values [O3]0= 7.48 x 10-6 M & [NO]0= 3.26 x 10-5M, owing to continuous production from separate sources.
pouring liquid nitrogen onto a balloon decreases the volume of the balloon dramatically. once the liquid nitrogen is
A mutation in human ATPase 6 (which corresponds to E. coli subunit a) from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits.
What mass of carbon dioxide was produced? Express your answer to three significant figures and include the appropriate units.
Consider the following mechanism: NO => N + O O + O3 => 2 O2 O2 + N => NO2 What is the role of O3
2 O3 (g) ? 3 O2 (g) (rate expression)
Using acetylene as your ONLY source of carbons, show how you would synthesize the following compound. Note: any alkyl halides, alcohols, or other organic compounds must be made first from acetylene
what quantity of heat is required to heat 168 g of copper from -12.2 to + 25.6 degrees C?
The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 36.5 {rm g} of sodium upon decomposition. How much fluorine (in grams) was formed?
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