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What volume of CO2 (g) at STP is formed when 6.00 g of cyclopentadiene, C5H6 (g) is fully oxidized?
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
A steel tank with a volume of 9.583 L contains N2 gas under a pressure of 4.972 atm at 31.8 °C. Calculate the number of moles of N2 in the tank.
ethene (C2H4) and H2 form ethane (C2H6). If 159 kJ is given off per mole of C2H4 reacting, how much heat is released when 14.9 kg of C2H6 forms
A chemist wants to prepare a solution with a freezing point of 22.0°C and has 100.00 g of glycerol on hand. What mass of water should the chemist mix with the glycerol?
The standard free energy change for the hydrolysis of ATP is -30.5 kJ. In a particular cell, the concentrations of ATP, ADP, and Pi are 2.8×10-3 M, 1.1×10-3 M, and 4.7×10-3 M, respectively. Calculate the free energy change for the hydrolysis of und..
A hydrate of calcium chloride contains 49.3% water and has a formula weight of 219 g/mol. Calculate the molecular formula of the hydrate.
Petroleum consumption in the US in 1990 supplied about 34.6E15 kJ of energy. Of this quantity, about 14.3E15 kJ was supplied by foreign sources.
How many milliliters of 4.21 M NaOH are needed to completely neutralize 76.9 mL of 0.340 M H3PO4?
During the reaction A+B to C, reagant B was held in excess at a concentration of 0.150 M. The order of B was 1. Next, by plotting collected data as ln [A] vs. time, a straight line was made with slope= -0.3045
One piece of copper jewelry at 108 degrees Celsius has exactly twice the mass of another piece, which is at 44 degrees Celsius. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the ca..
Tap water contains calcium ions. Why dont we use tap water tp dissolve the oxalic acid? Show a chemical equation to ilustate your answer.
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron
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