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In terms of binding energies, explain why cations usually form by losing valence electrons, and generally retain their core electrons.
Hydrogen sulfide , H2S , has the characteristics odor of rotten eggs. if a sample of H2S gas at 759.0 torr and 29.0 c in a 3.00-l container is allowed to expand into an 11.0-l container
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts
A food chemist determines that an increase in temperature from 50 to 60 degrees Celcius increases the initial rate of this reaction by a factor of 2.12 (all other initial conditions were kept constant). What is the activation barrier for this este..
The active ingredient of aspirin is acetylsalicylic acid, a monoprotic with a ka = 3.3 x 10 raised to -4 power. What is the pH of a solution dissolving two aspirin tablets, each containing 325 mg of acetylsalicylic acid, in 250 ml of water
What fraction of the total residues are branch points? B) How many reducing ends does this amylopectin have?
A 84lb child is prescribed 35 mg/kg of tetracycline per day. What volume of a 0.45 g/mL solution of tetracycline should be given to this patient each day? Answer in milliliters.
compare the rates of effusion for oxygen molecules as compared to hydroge molecules. which will effuse faster and by
what if the lewis structure forms an octet around the central atom, does it matter than where the dots are
Problem- When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom of oxygen. If 1.75 grams of rubidium is exposed to air, what will be the mass of the product in grams
Neglect activity and assume that neither Hg2+ nor SCN- react significantly with water (no formation of HgOH+ or HSCN). Hint: you will probably want to make an assumption in the charge balance to simplify the problem and then test to see if the ass..
a gas at 763 mmhg and 31 degrees C occupies a volume of 4.98 L. Calculate its volume at STP in g/mole
The standard free energy change for N2O4(g) ? 2 NO2(g) is 5.4 kJ at 25oC. a) What is the equilibrium constant for this reaction? b) What is ?G if we set up the flask to start with 0.450 atm N2O4 and 0.120 atm NO2?
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