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Diffrentiate between hydrocarbon and isotopes and give the general formulas of alkanes,alkenes and alkynes
mgnh4po4.6h2o loses h2o stepwise as it is heated. between 40c and 60 the monohydrate is formed and above 100 celcius
What is the pressure of CO2(g) at equilibrium when this reaction is run at 400 degrees
Explain how much CO2 is dissolved in water at 500ppmv at 15 C. Explain what is the dissolved CO2 equivalent to in the dissolved phase
A weak acid is placed in a beaker of pure water. At equilibrium, HA has a concentration of .05 M and it conjugate base has a concentration of .01 M, as well as [H3O+]. What is the % ionization? And the Ka value?
How much heat (in kf ) is evolved in converting 1.00 mol of steam at 150.0 C to ice at -45.0 C? The heat capacity of steam is 2.01 j/g*C and of ice is 2.09 j/g*C .
The sample is placed in a drying dish (weight = 0.5000 g before the sample is added), and then placed in an oven at 104°C until all the moisture is evaporated
Is the dissociation of NaCl reversible. When you dissolve it in water does it dissociate and associate back together
Which pair of solutions should conduct electrical current equally well because they contain equal numbers of ions? 0.10 M NH3 and 0.10 M NH4Cl 0.10 M HBr and 0.10 M HF 0.10 M NaCl and 0.10 M Na2SO4 0.10 M NaNO3 and 0.10 M HNO3 0.10 M HNO3 and 0.10..
A magnesium sulfate heptahydrate solution, which is 18.00% by weight in the anhydrous compound, has a density at 20 °C of 1.20 g/mL. What is the molality of the anhydrous compound in the solution
Add electron pairs to show the bonds between the atoms. Assigning the remaining valence electrons so that each atom has an octet of electrons, write the Lewis structure for COCl2 in the box.
A compound has the empirical formula CoCl3 x 4NH3. One mole of the compund yields one mole of silver chloride when treated with silver nitrate. Ammonia is not removed by treatment with concentrated sulfuric acid. The formula for the compund is bes..
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
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