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Problem- A compound contains 80.78% C, 13.56% H, 5.66% O. A solution of 1.00g of this compound in 8.5g of benzene freezes at 3.37°C.
1) What are the molecular formula and the molar mass of the compound? (The normal freezing point of pure benzene is 5.50°C)
State your answer as a chemical formula.
In an experiment, 0.500 L of 0.020 mol L ^-1 NaOH(aq) is rapidly mixed with an equal volume of 0.020 mol L^-1 HCN(aq). Calculate the time, in seconds, required for this [OH] to decrease to 1.0×10^4 mol L^1.
Calculate the mass fraction of sulfuric acid in the product solution. b.) Taking 100 kg of the 20% feed solution as a basis, draw and label a flowchart of this process, labeling both masses and volumes, and do the degree-of-freedom analysis. Calcu..
If you utilize 0.20 M KI instead of 0.10 M KI, define how would this affect (a) the slopes of your curves (b) the rate of the reactions (c) the numerical value of k
a feed mixture of ethanol and water is 40 mole $ ethanol. the feed is at 200 degrees C and is at a high enough pressure that it is a liquid. It is input into the column through a valve, where it flashes. Column pressure is 1 kg/cm^2. Find the slop..
Indicate whether each of the following equilibrium mixtures contains mostly products or mostly reactants. a. CO(g) +Cl2(g) COCl2(g) Kc=5.0x10 to the negative 9 b.2HF(g) H2(g) + F2(g) Kc= 1.0x 10 to the negative 95 c. 2NO(g) +O2(g) 2NO2(g) Kc=6.0x1..
2 solution are mixed: 100 ml of 0.0020 M HBr(aq) with 100.00 ml of 0.0015 M Ca(OH)2(aq). What is the pH of the resulting solution
State a balanced chemical equation for this reaction. Generate a plot of solution pH versus volume of 0.100 M HCL added for the titration of a solution of 250 mg of CaCO3 in 200.0mL of water with 0.100 M HCL; suppose that the HCL solution is added..
She drinks a lot of water and has consume milk of magnesia(ph value 10.5) before she feels comfortable again. State the pH values of water and blood and whether its acidic or alkaline.
Compound hex-2-ene is hydrated at a particular temperature as well as pressure to form compound B. B was then exposed to acidified permanganate solution, as well as substance C was formed with a smell similar to acetone.
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
The decomposition of potassium chlorate (KClO3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 20.7 mol of oxygen?
what kind of precautions need to be taken when working with grignard reagents? in addition which of the following types
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