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In an endothermic reaction, in going from the reactants to the products at the same temperature, the value of q is negative.
The reaction 2NO+Cl2=2NOCl is carried out in a closed vessel. If the partial pressure of NO is decreasing at the rate of 20 torr/min, what is the rate of change of the total pressure of the vessel?
How much energy (in Joules) is required to heat 10.99 g of water from 12.9 Celsius to 42.4 Celsius?
Consider the titration of 30.0mL of 0.050M NH3 with 0.025M HCl. Calculate the pH after the following volumes of titrate have added.
how many milimeters of 0.755 M H2SO4 solution is needed to react with 55.0 mL of 2.50 M KOH solution? Given 2KOH (aq) + H2SO4 (aq) ------ 2H2O (I) + K2SO4
Metals and nonmetals can react with each other to form ions. Complete these statements. A potassium atom gain or loses(electrons/protons/neutrons)and to form how many ion?
53.8 percent nitrogen. At 25oC and 750 mm Hg, 1.05 g of this gas occupies a volume of 0.500 L. What is the molecular formula of the gas?
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
classify each of the following as oxidation or reduction: a)electrons are gained b)requires a reducing agent c)Ni(s)>Ni^2+(aq) d)MnO4^-(aq)>MnO2(s) e)Sn^4+(aq)>Sn^2+(aq)
If 3.30ml of vinegar needs 45.0ml of 0.130M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10qt sample of this vinegar?
Assuming that the gas is at standard temperature and pressure there is 1.00 mole per 22.4 L of volume how many argon atoms are there present in this sign
The allowable concentration level of vinyl chloride,C2H3Cl , in the atmosphere in a chemical plant is 2.4×10-6 .How many moles of vinyl chloride in each liter does this represent? How many molecules per liter?
If 30.0 grams of sulfuric acide react with 25.0 g of aluminum hydroxide, identify the limiting reactant.
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