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A precipitate of AgCl and AgBr weighs 0.4066 g . on heating in a current of chlorine , the AgBr is converted to AgBr and the mixture loses 0.0725 g in weight , find the % of Chlorine in original solution.
Initially A sample of a substance of 23.43 g weight has temperature 24.2 °C then it absorbs heat and reached to temperature 122.0 degree Celsius; calculate the specific heat of this substance if it absorbs 2167 joule heat
which of the solutions included in this experiment could be used to distinguish between the pairs of solutions. In each case, describe the observations you would make and write a net ionic equation for any reaction that would occur.
What is the effect on Kc when the temperature of an exothermic reaction is lowered. according to le chatelier's principle how is equilibrium in part a reached
The ozone layer is about 20 km thick, has an average total pressureof 10 mm Hg(1.3 * 10^-2 atm ) , and has an average temperature of 230 K. The partial pressure of ozone in the layer is only about 1.2 * 10^-6 mm Hg( 1.6 * 10^-9 atm ).
What is the silver ion concentration in a solution prepared by mixing 391 mL of 0.370 M silver nitrate with 427 mL of 0.587 M sodium phosphate? The Ksp of silver phosphate is 2.8 × 10-18
For the reaction aA ? Products, use the following choices? a) zero order in A b) first order in A c) second order in A d) a, b, c e) none of the above so what is (1) [A] is constant and (2) the rate is constant over time
On the assumption that the debye-Huckel limiting law applies, what is the value of the solubility product equilibrium constant Ksp for AgCl in such conditions?
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
How much energy would be absorbed or re- leased by the H2O in the process 30 grams H2O(g) at 100?C → 30 grams H2O(l) at 20?C.
the label of an antacid tablet bottle states that each tabletcontains 480 mg of caco3. a tablet weighs 1.40 g. what
From each pair of compounds, circle the one with the indicated characteristic. Explain your choice. more basic: 4-nitroaniline or 4-methoxyaniline
In the Ritalin Synthesis, why is p-PhLi (phenyl lithium) used instead of cuprate? What does cuprate do? And why doesn't the alkyllithium add twice
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