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a) A compound is known to contain 51.27% carbon and 27.30% oxygen by mass. Each molecule contains two atoms of oxygen. What is the molar mass of this substance?
b) How many carbon atoms are there in the molecular formula for this compound? (It should be a whole number, no units)
What would you expect to observe in terms of the angle of rotation if you were to double the concentration of a sample, but kept all other variables constant?
If the Ecell measures 1.40 V, what is a more accurate molar concentration of Cr3+, assuming the molar concentration of Ag+ is accurate. What is the sign of the cathode in a galvanic cell. What type of reaction occurs at the cathode.
The specific heat of the liquid is 4.7 J/g.K and the specific heat of the vapor is 2.2 J/g.K. its enthalpy of vaporization is 25.1 kJ/mol. If you heat 4.6 kg of liquid ammonia from -62.0 degrees C to its boiling point of -33.6 degrees C, and then ..
Explain why compunds can have same electron cloud geometry but different molecular
Give the products (if any) expected from the treatment of 2-methyl-2-pentene with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
How much energy is dissipated as heat, which is exchanged btwn the system and the heat-sink?C. What is the delta U for the above process?
The burning of ethane produces both CO2 and H2O. If 200 mL of CO2 is produced at 20°C and 750 torr, what volume of water vapor would be produced at 24°C and 790 torr?
how many moles of copper nitrate are present in 5 ml of 1.20 M copper nitrate? how do you arrive at that answer?
When synthesizing benzoic acid, a student used 0.2 mol Bromo Benzene, 0.3 mol Mg and 0.25 mol CO2. Write out the general equations, check limiting reagent and indicate the maximum yield of benzoic acid in moles.
What is the value of Ksp for Ag2SO4 if 5.40 g is soluble in 1.00 L of water?
in the electrolysis of aqueous solution of Na2SO4, what reactions occur at the anode and the cathode. explain
An enzyme reduces the activation energy of a reaction at the temperature of 25 degree celsius from 55 kjmol-1 to 15kJ mol-1 by changing the route of the reaction.
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