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The H NMR spectrum of a compound with formula C3H8O demonstrate signals at 1.2 (doublet) 2.2 (singlet) and 4.0 (septet, split seven ways). Define the structure and provide an acceptable name of the compound.
Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
Liquid tetraethyllead reacts according to the balanced equation. When 419 g of CO2 is produced, calculate the sign and magnitude (kJ) of the heat produced.
a gas sample has a volume of .150 L at a temperature of 256 K. What volume will the gas occupy at 288K?
Specified that the enthalpy of combustion of graphite is -393.5kJ/mol as well as that of diamond is -395.41 kJ/mol, compute the standard enthalpy of the C(s, graphite) àC s, diamond transition in kJ/mol. Use two significant figures as well as do n..
Write the lewis structure for SeF6. What is the general "ABX" structure, shape name, and molecular polarity?
As a part of this exercise, you will need to prepare 100 mL of a 0.1 M phosphate buffer at pH 7.5, and you need to calculate the amounts of NaH2PO4 and K2HPO4 that you need to use in your buffer.
You are asked to prepare an aqueous solution of ethylene glycol (HOCH2CH2OH) with a mole fraction of 0.142.
A patient needs to take 625 of ibuprofen twice daily. The pills in the bottle are each 250. . How many pills does the patient need to take each time she wants the 625 dosage? Assume that these pills are scored and can be cut in half if necessary.
how many grams of cano32 can be produced by reacting excess hno3 with 7.40 g of caoh2?a 32.8 gb 8.22 gc 10.2 gd 16.4 ge
125.0 mL of 0.307 M Na2CO3 are reacted with excess HCL. The CO2 (g) product is collected in a container of 630 mL volume at 320C. The actual yield of the gas was 0.87 atm. What is the percent yield.
Explain what health risks may arise people use this hot water in the preparation and cooking and what is the equilibrium constant for this reaction
Which one of the following processes results in an increase of entropy
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