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reacting 10.00 mL of ethanol (C2H5OH) with 10.00 mL of acetic acid (CH3COOH). The densities of acetic
acid and ethanol are 1.0492 g/mL and 0.7893 g/mL, respectively. The equation for the reaction is shown
below:
C2H5OH(l) + CH3COOH(l) → CH3COOC2H5(l) + H2O(l)
(a) Determine the limiting and excess reactant.
(b) Determine the volume (in mL) of the excess reactant when the reaction ends.
Why is potassium combined with chloride for a potassium medication?
how much energy must be absorbed by 20.0g of water to increase tempature from 283.0
to 303.0
169 g FeCr2O4, 298 g K2CO3 and an excess of O2 (g) are sealed in a reaction vessel and allowed to react at high temperature. The amount of K2CrO4 obtained is 194 g. Calculate the percent yield of K2CrO4.
4 FeCr2O4 + 8 K2CO3 + 7 O2 → 8 K2CrO4 + 2 Fe2O3 + 8 CO2
( Molar mass: FeCr2O4 = 223.84, K2CO3=138.21, K2CrO4 =194.19 g/mole )
The percent of aluminum in the compound, Al2X3, is 18.56 %. What is the molar mass of element X ?
An alloy of Co, Rh and Mn contains these elements in the atomic ratio of 2 : 5 : 2 , respectively. What is the mass of a sample of this alloy containing a total of 8.75 x 1021 atoms ?
A sulfur containing compound is treated chemically to convert all its sulfur into barium sulfate. A 8.19 mg sample of the compound gave 5.46 mg barium sulfate.
What is the percentage of sulfur in the compound?
If there is one sulfur atom in the molecule, what is the molar mass of the compound ?
#340153 on Dec 2023