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Question- To ensure that do not provide customers with substandard product, the local steel mill has instigated a quality control program using flame AAS. two of the trace elements they wish to monitor, Al and Ti, form stable oxides. Is this a potential problem for the analysis and, if so, can something be done so the analysis can still be performed?
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Problem- If the temperature of a sample of water requires 3.2 kJ of heat to rise the temperature from 26.1 C to 35.2 C, how much water was in the sample?
Given a balanced chemical equation and enthalpy of reaction, relate energy change to amount of reactant or product
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood.
Calculate the thickness of a salt layer left after evaporating an ocean of 35%u2030 salinity and 4-km depth.
a 9.780 g. gaseous mixture contains ethane c2h6 and propane c3h8. complete combustion to form carbon dioxide and water
At equilibrium, [H2] = 5.0 M, [N2] = 8.0 M and [NH3] = 4.0 M. What was the initial concentration of H2(g) before any reaction occurred
How many milliliters of 0.424 M KMnO4 are needed to react with 5.06 g of iron(II) sulfate, FeSO4?
Determine the volume of oxygen gas required to completely combust 3.5 mol of propane in a bbq at standard pressure and 28.0C
The OH concentration of 0.45 M ammonia, NH3, is 6.7X10^-4 M write. The reaction equation for its ionization
You have a system with a movable piston that is isolated. The reaction inside the system is under adiabatic conditions. When the reaction (the burning of butane in oxygen) is started, the distance the piston traverses is 30.00 cm at 1.000 atm of p..
in a laboratory you determine that the density of a certain solid is 5.23times10-6kgmm3. convert this density into
Illustrate and show calculations how you would prepare 2 liters of a pH 8 buffer using 0.4 M Na3PO4 and 0.5 M HNO3. Explain reasoning at each step of the way ion calculation.
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