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Complete combustion of 3.60 g of a hydrocarbon produced 11.1 g of co2 and 5.11 g of 520. What is the empirical formula for the hydrocarbon?C?h?
and
A 85.2 g sample of the compound x4o10 contains 48.0 g of exygen atoms. What is the molar mass of element X?
Typically, the concentration of hydronium, H+, or hydroxide,OH- , ions in an aqueous solution is less than 1M . It is not uncommon to have hydronium ion concentrations that are much smaller
what is the volume of a block with the dimensions 95.6cm in length, 43.7cm wide, and 10.2cm in height?
Water is added to 25.0 ml of .716 MKNO3 solution until the volume of the solution is exactly 500 ml. What is the concentration of the final solution?
a metal sulfide, M2(CO3)3, has a Ksp of 4.15 x 10^-42. What is the molar solubility of this sulfide in water? Assume the sulfide dissolves ideally (ignore hydrolysis effects).
Determine the molecular formula for an 8-carbon hydrocarbon with 3 pi bonds and one ring.
The complex ion [Co(CN)3]^3- absorbs a photon of wavelength 2.90×10^2 nm. What is the splitting energy of this complex in kJ/mol?
Include constitutional isomers expect those with C-C double or triple bonds. For each constitutional isomer identify the functional group and identify if they are stereoisomers other than conformers
the ksp of agcl is larger than the ksp of k2cro4,yet k2cro4 is more soluble than agcl. explain the fallaciousness of the statement.
Write an equilibrium expression for each chemical equation involving one or more solid or liquid reac- tants or products.
-Determining the molar enthalpy/heat of a reaction, and then how much heat was actually given off in a specific reaction -Finding the increase in temperature of a substance given its gain or loss of heat energy
A 2.06-g sample of zinc was placed into 146 mL of 3.88 M HCl and the hydrogen generated was collected over water at 24 oC. Atmospheric pressure was 764 mm Hg. What was the total volume of hydrogen collected
How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 C to 88.5 C?
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