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A mixture of propane and butane is burned with pure oxygen. The combustion products contain 47.4 mole% H2O. After all of the water is removed from the products, the residual gas contains 69.4 mole% CO2 and the balance is O2. a) What is the mole percent of propane in the fuel?
The name of this covalent compound is nitrogen trioxide. d. The name of this ionic compound is manganese oxide.
Hexane has a density of 0.659 g/mL. How many milliliters would a student need to pour in order to get 49.5 g of hexane?
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
All of the following are factors that affect reaction rate EXCEPT a. density of reactants b. presence of a catalyst
Lewis Structure for a Nitrate Ion (NO3-1). How many possible resonance structures are there for the nitrate ion
Compute the molarity of the hydroxide ions (OH- )in a solution that has been made by adding 70.3 grams of barium hydroxide (Ba(OH)2) in H2O(water) and diluting the solution to a final volume of four litres.
Estimate the uncertainty in the position of one Nitrogen molecule (N2) traveling 300 +/- 0.2 (meters per second) Assume the mass of the nitrogen molecule is 4.65x10^-23 grams
A mixture of helium and neon gases at 237 K contains three times the number of helium atoms as neon atoms. The concentration (n/V) of the mixture is found to be 0.150 mol/L. Assuming ideal behavior, what is the partial pressure of helium
Using the calibration data provided below, calculate the concentration of cocaine (mg/mL) in the original urine sample.
Element x reacts with Hydrogen gas at 200 deg celsius to form compound Y. When y is heated to a higher temperature, it decomposes to the element x and hydrogen gas in the ratio of 559ml of H2
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
Describe how nickel is separated from iron and manganese. Include the name or formula of the soluble nickel species produced
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