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Compute the Ca+2 concentrations in a saturated solution of CaF2(s). The solution as well contains .0095M of Mg(NO3)2. Ksp for CaF2 = (3.9 x 10^-11)
A solution containing iodide ions has a percent transmittance reading of 72.3%. what is the molarity of the iodide ion in this solution
about two centuries ago benjamin franklin showed that 1 teaspoon of oil would cover about 0.5 acre of still water. if
Draw the best Lewis structure for azoxymethane, whose sigma-bond network is given to you. Azoxymethane is a neutral molecule.
Potassium hydrogen phthalate (also known as KHP) KHC8H4O4, is frequently used a the neutralization standard for sodium hydroxide. What mass of KHP will react with 25.00 mL of 1.654 M NAOH
chlorobenzene is prepared from benzene by the following reactionc6h6 l cl2g c6h5cl l hcl ga 10.0kg sample of benzene
what is the freezing point of a solution of 1.17 g of 1-naphthol c10h8o dissolved in 2.00 ml of benzene at 20degc? the
Calculate the specific heat capacity of copper, assuming that all the heat lost by the copper is gained by the water. Provide the Answer In: J/g·°C
Reaction pathway and balanced reaction between xenontetra flourideand water to give xenon trioxide and xenon in 1:2 ratio respectively
Use bond enthalpies to estimate the enthalpy change for the following gas-phase reaction.
Mass of mineral sample = 0.123 g The Na2SO4 in the sample is converted to insoluble BaSO4. The mass of BaSO4 is 0.177 g What is the mass percent of Na2SO4 in the mineral?
Calculate the expected pH values of the buffer systems from the experiments (a, b, c, d) using the Henderson-Hasselbalch equation (pH= pKa + log [A-] ). Use for pKa values: carbonic acid= 6.37 and acetic acid= 4.75.
The half life of the radioisotope^ 158,47Eu is 1.0 hr.the decay of a 16.0g sample of the isotope to 1.25g required how many hours
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