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The density of mercury is 13.6 g/mL
a. What is the mass of 8.20 mL of mercury?
b. What volume would 120 grams of mercury occupy?
A piece of silver has a mass of 2800 grams and occupies a volume of 266cm^3. What is the density of silver?
The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion. 4 N2H3CH3(l) + 5 N2O4(l) 12 H2O(g) + 9 N2(g) + 4 CO2(g) Calculate ?H° for this reaction. in kJ
An aqueous solution containing 0.003 M NaCl and 0.005 M CaCl2 is mixed with the polysaccharide alginate to create a high-viscosity liquid that is a component of a wound dressing
Find the equilibrium concentrations of \rm A and {\rm B} for a = 1 and b = 2. Assume that the initial concentration of \rm A is 1.0 {\rm M} and that no {\rm B} is present at the beginning of the reaction. kc=2.3
The mole fraction of potassium nitrate in an aqueous solution is .0194. The density of the the solution is 1.0627 g/mL. Calculate the molarity of the solution.
When aluminum is placed in a concentrated hydrochloric acid, hydrogen gas is produced. 2Al (s) + 6HCl (aq) ------> 2AlCl3 (aq) + 3H2 (g) What Volume of H2 (g) is produced when 4.10 g of Al (s) reacts at STP
the molar heats of combustion of three hydrocarbon gases arech4 methane- 890.0 kjmolc2h6 ethane- 1560.0 kjmolc3h8
Calculate the concentration of all species in a 0.050 M tartaric acid solution. These species include [H3O+], [HC4H4O6^1-], H2C4H4O6] and [C4H4O6^2-]. For tartaric acid, Kal=1.0 x 10^-3 and Ka2=4.6 X 10^-5.
Rates increase with increasing concentration of reactants because there are more collisions between reactant molecules. At higher temperatures, a larger fraction of molecules have enough energy to get over the activation energy barrier.
How much heat is required to warm 1.20 kg of sand from 26.0 0C to 100.0 0C?
How much ethylene glycol (C2H6O2) the major component of antifreeze, must be added to 1 L of water to keep it from at -15 F? Kf= 1.86 C/m.
The partial pressure of the H2 is 1.9 atm, and the partial pressure of the Ne is 3.4 atm. What is the mole fraction of H2?
at a certain temperature 0.200 moles of no 0.300 moles of cl2 and 0.500 moles of clno were placed in a 25.0 l vessel
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