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Potassium chlorate decomposes into potassium chloride and oxygen. how many moles of potassium chlorate are required to form 32 grams of oxygen.
In an experiment where aniline is reacted with acetic anhydride to form acetanilide, how do you calculate the theoretical yield of acetanilide?
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
Specific heat of ice: 2.09g*c Specific heat of liquid water: 4.18j/g*c Enthalpy of fusion: 334j/g Enthalpy of vaporization: 2250j/g
You dissolve 261 mmol of sodium bicarbonate into a total volume of 1.2 L. What is the molarity of sodium bicarbonate in this solution?
the resulting solution exerts an osmotic pressure of 829 torr. what is the molar concentration of the solution? how many moles of solute are in the solution? what is the molar mass of the solute?
For the reaction 2CH4(g) +3Cl2(g) -> 2CHCl3(l) + 3H2(g), the standard enthaly of change of reaction = -118.6KJ. The standard enthalpy of change of reaction
A 15.0 gram sample of chromic acid is dissolved in enough water to produce 275 mL of solution. The concentration of the solution is ?
What differences might you expect in the comparative solubility of each of them in lipids? WHY?
Determine what is the mass percent yield from 2.57 grams of Sb in excess Sulphur , if 1.56 g of Sb 2 S 3 is obtained?
What is the boiling point of a solution of 8.69 g of the electrolyte sodium acetate, NaCH3COO, dissolved in 15.00 g of water?
Phenylacetic acid (C6H5CH2COOH) is one of the substances that accumulates in the blood of people with phenylketonuria, and inherited disorder that can cause mental retardation or even death
for a certain change the value of U is -2.37 kJ. During the change, the system absorbs 650 joules. how much work did the system do.
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