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Problem- A 19.59 g sample of a compound contains 6.25 g potassium (K), 5.67 g chlorine (Cl), and oxygen (O). Calculate the empirical formula.Explain each and every step in detail. I need proficient help in the above problems.
A particular smoke detector contains 2.15 of , with a half-life of 458 . The isotope is encased in a thin aluminum container. Calculate the mass of in grams in the detector.
The first mechanism includes sodium acetate to yield beta-penta-acetate and the first mechanism includes zinc chloride (Lewis acid) to form an oxonium ion to yield the alpha-penta-acetate product. Any help to draw out the mechs would be much appre..
Determine the reaction when aqueous solutions of aluminum acetate and copper(II) bromide are combined. The net ionic equation for this reaction is
If a solution of compound S (MW = 300) with a known ? of 40,000 at ?max of 360 nm gave an absorbance of 1.0 in a 1.00-cm cell, how many mg of compound S was present in 1.0 mL of the analyzed solution
The two rings are heated to 66.1 C and dropped into a 15.0 mL of water at 20.5 C. When equilibrium is reached, the temperature of the water is 22.5 C. What is the mass of gold ring. (Assume a density of 0.998 g/mL for water.)
consider a sample of a hydrocarbon a compound consisting of onlycarbon and hydrogen at 0.959 atm and 298k. upon
Complete and balance the equations for the following acid-base reactions name the reactants and the products HCIO4(aq)H2+NH3(aq)
For the following reactants, predict the products formed (if any) and write the balanced molecular equation, complete ionic equation and net ionic equation. Ca(s)+ HCI(aq)
Many household cleaning products contain oxalic acid, H2X2O4 , a diprotic acid with the following dissociation constants: , . Calculate the equilibrium concentration of C2O4^2- in a 0.20M solution of oxalic acid.
Draw the structure for aspartic acid-serine-histidine at pH 7. Why is this structure have peptide bonds that are flat and planar?
A second-order reaction has a half life of 18 s when the intial concentration of reactant is 0.71 M. How long will it take for the concentration
A method of preparing a very pure alkane is to react the corresponding alkyl magnesium halid (grignard reagent) with water and collect the alkane product.
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