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1. If the volume of the cylinder is 5500 mL and the pressure of the N2 in it is 2.5 atm. (temperature is 25oC) a. How many moles of nitrogen molecules are in the cylinder? b. How many grams of nitrogen are in the cylinder? 2. For the following reaction: Mg(s) + 2HCl (aq) ? MgCl2 (aq) + H2 (g) At 25oC and 1atm, 0.0350 g of Mg reacted with excess amount of HCl. a. How many moles of H2 will be produced? b. How many mL of H2 will be collected (assume hydrogen is an ideal gas)?
How many ml of 0.05 M HCl solution would be required to completely neutralize 25.0 ml of 1.0 M Ba(OH)2 solution?
How many grams of CO2(g) would occupy a volume of 326 mL at 20.6°C and 703 torr?
if the reaction between iron III ion and thiocyanate ion yielded an equilibrium concentration of .15M for each of these ions, what is the equilibrium concentration of the red iron III-thiocyanate complex
if the half life of a certain radioactive element is 1,250 years what is the percent of atoms remaining after 7,500 years is ?
A sample containing 4.80 g of O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new volume if 0.500 moles of O2 gas is added?
From the heats of reaction as given 3O2(g) ---> 2O3(g) DH = +284.6 kJ, 2H2(g) + O2(g) ---> 2H2O(g) DH = -483.6 kJ
If we react 116 molecules of TiCl4 with water according to the equation TiCl4 + 2 H2O -> TiO2 + 4 HCl how many molecules of HCl will we form?
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 29.0°C. What was the final temperature?
the rate constant for the second order -reaction is NOBr(g)------>NO(g)+1/2Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose
Determine how many milliliters of this solution should you dilute to make 100.0mL of 0.250M Ammonia(NH3)?
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
using 1.16x10^-12 for ksp, calculate how many milligrams of Ag2CrO4 will dissolve in 10mL of H2O
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