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A 350. mL container holds 0.146 g of Ne and an unknown amount of Arat 35° C and a total pressure of 622 mmHg.Calculate the moles of Ar present.
a tank contains a mixture of 3.0 mol of nitrogen 2.0 mol of oxygen and 1 mol of carbon dioxide at 25 degrees and a
What is the hydronium ion concentration of a 0.110 M acid solution of an acid whose ionization constant is 5.45 x 10-7
How many moles of cobalt (Co) atoms are there in 5.00 x 10^9 (5.00 billion) Co atoms? Enter your answer in scientific notation.
Determine the Kelvin temperature required for 0.0470mol of gas to fill a balloon to 1.20L under 0.988atm pressure.
The rate at which a compound travels through a particular GC system depends on numerous factors. List the five factors and number them one through five.
The reaction X(s) ? X(g) is known at 25oC to have standard enthalpy, free energy, and entropy changes of 146.8 kJ, kJ, and 175.4 J/K. At what temperature (oC) does X(s) sublime?
How much energy is required to vaporize 125g of butane at its boiling point? The heat of vaporization for butane is 23.1kJ/mol.
What volume of oxygen at 27.0 °C and 1.20 atm is required for the complete combustion of 14.0 g C2H4? C2H4 + 3 O2 ? 2 CO2 + 2 H2O
One mole of an ideal gas is subjected to the changes below. Calculate the change in temperature for each case
Enter formulas for these ionic compounds. copper(I) bromide copper(II) bromide iron(III) bromide lead(IV) bromide copper(I) oxide copper(II) oxide iron(III) oxide lead(IV) oxide
The elements contained in acetylsalicyic acid are hydrogen, carbon, and oxygen. The combustion of 3.000 g of the pure compound yields 1.200 g of water and 3.72 L of dry carbon dioxide, measured at STP
What is the fraction of association (?) for the following potassium propionate solutions? Ignore activities. The Ka of propanoic acid is 1.34 x 10-5.
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