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a sample of a hydrocarbon is found to contain 7.99g carbon and 2.01g hydrogen what is the empirical formula for this compound
a 100.-L flask contains a mixture of methane, CH4, and argon at 25°C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. calculate the total kinetic energy of the gaseous mixture.
Problem- Hydrogen peroxide decomposes to give water and oxygen gas according to the equation below. If 3.0 moles of hydrogen peroxide decompose, what volume of oxygen gas is produced at a pressure of 1.0 atm and a temperature of 23°C
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.75 m K3PO4(aq).
what kind of inter-molecular interactions would likely dominate? explain your reasoning
The accuracy of this experiment depends on good technique. Would the following techinque errors result in an erroneously high or an erroneously low calculated molarity of an NaOH solution
The partial pressure of C2H6 is 0.300 atm and that of CH2F2 is 0.250 atm. What is the total pressure and what is the Mole fraction of C2H6 in the mixture
A 496-mL sample of a gas at 263 oC is cooled at constant pressure until its volume becomes 241 mL. What is the new temperature in oC?
What is the redox number for nitrogen in a molecule of nitrogen dioxide
suppose that a fully charged lead-acid battery contains 1.50 rm l of 5.00 m rm h2so4. what will be the concentration of
Predict the shape and polarity of each of the following molecules. Assume all bonds are polar: a) a central atom with four identical bonded atoms and no lone pairs. b) a central atom with three identical bonded atoms and one lone pair. c) a centra..
Suppose you were instructed to add 38 g of sodium chloride (NaCl) to 100 mL of water. a. prepared as instructed at 20°C b. heated the mixture in (a) to 100°C. Describe what you would observe under the following conditions.
Figure shows a PMOS transistor operating as a switch in the on position. (a) If initially Vo = 0 and at t = 0, vI is raised to VDD, what is the final value VOH reached at the output?
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