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Concentrated sulfuric acid has a concentration of 18 M. How much concentrated sulfuric acid would be needed to make 255 mL of 1.0 M sulfuric acid?
Calculate the standard emf of a cell that uses the Mg/Mg^2+ and Cu/Cu^2+ half-cell reactions at 25 degrees celsius. Write the equation for the cell reaction that occurs under standard-state conditio
The enthalpy of formation of ethanol, C2H5OH, is -277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
Find the number of automobiles whose total mass is the same as 1.0 mol blueberries if The mass of an average blueberry is 0.77g and the mass of an automobile is 2000 kg.
A solution made by dissolving 5.00 g of a protein in 175 mL of solution has an osmotic pressure of 42.0 torr at 10 degree C. what is the molar mass of the protein?
Describe the coordination geometry (e.g. octahedral) for each metal ion and the MX_nL_m formula for deoxy and oxy form of hemerythrin.
How many moles of carbon dioxide can be produced if one tablet containing 0.0119 mol Sodium Bicarbonate is dissolved NaHCO_3 + H_3C_6H_5O_7 3 CO_2 + 3 H_2O + Na_3C_6H_5O_7
A solution of ethanol (C2H5OH) in water is prepared by dissolving 72.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 300.0 mL of solution. What is the molarity of the ethanol in this
Suppose you have a canister of Gas Z. The pressure of the gas is 500. torr when the temperature is 17.0 C. What happens to the pressure if you heat the canister to 57.0 C?
What will be the concentration of H2SO4 in the battery after 3.30 A of current is drawn from the battery for 8.00 hours?
Draw structures of the active sites of the deoxy and oxy form of hemerythrin, showing the complete ligands attached to the central metal ions (drawing N as a ligand is not complete),
The volumes for both reactants were mistakenly and unknowingly reduced by 5% in all of the Beer's Law plot solutions. Briefly explain your answers.
The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a temperature of 25 and a total pressure of 753 . What is the partial pressure of the oxygen gas?
Give the net ionic chemical equation (balanced with respect to both atoms and charges) for each reaction. Include any reaction that resulted from adding extra 1 M HNO3:
If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room?
Calculate the total volume of gas produced at 22 degrees C and 1.10 atm by the complete decomposition of 11.96g of ammonium carbonate.
The equation for a Beer's Law plot is y = 2012.5x + 0.003. If the recorded absorbance for an equilibrium mixture is 0.362, what is the concentration of FeCNS2+ (aq)?
Given the following bond enthalpy values, calculate the enthalpy of formation for gas phase isopropanol, C3H7OH at 25 °C.
What is the percent yield of a reaction in which 228 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 129 g HCl?
Pressure of 568 torr is heated to 56 C and a pressure of 897 torr. A. What is the original volume of the gas? B. What is the new volume of the argon gas?
A 100mL reaction vessel intially contains 2.60X10^-2 moles of NO and 1.30X10^-2 moles of H2. At equilibrium, the concentration of NO in the vessel is 0.161M. At equilibrium the vessel also contains
box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 436 and the total mass is 4.26 .What is the perc