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0:02:21

A sample of gas has a mass of 0 311 g Its volume is 0 225 L at 55 C and pressure of 886 mmHg What

0:02:48

Calculate the number of moles of gas in a 3 24 L basketball inflated to a total pressure of 24 3 psi

0:02:02

Gas density formula

0:01:14

To what volume will a sample of gas expand if it is heated from 50 0 C and 2 33 L to 500 0 C

0:01:47

Calculate the volume occupied by 0 845 mol of nitrogen gas at a pressure of 1 37 atm and temperature

0:01:11

A piece of iron mass = 25 0 g at 398 K is placed in a styrofoam cup containing 25 0 mL of water at 2

0:01:44

What is the change in enthalpy for the reaction 4NH3g + 5O2g è 4NOg + 6H2Og

0:02:56

CH4g + 2 O2g → CO2g + 2H2Og

0:03:09

Use bond energies to calculate ΔHrxn for this reaction

0:03:19

Mgs + 2HClaq MgCl2 + H2g you combine 0 158 g of Mg with enough HCl to make 100 0 mL of solution in

0:06:34

Find ΔHrxn for 3Cs + 4H2g C3H8g

0:03:56

Measuring ΔErxn in a Bomb Calorimeter

0:02:31

Calculate the heat in kJ associated with the complete combustion of all of the propane in a 13 2 kg

0:01:50

Write the appropriate equations for the heats of formation of MgCO3s and C6H12O6s

0:02:41

Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction

0:02:35

How much heat is absorbed as it warms from 8 0 C to body temperature 37 0 C?

0:01:37

Calculate the change in internal energy delta E for a system that is giving off 25 0kJ of heat and i

0:05:15

A 32 5 g cube of aluminum initially at 45 8 oC is submerged into 105 3 g of water at 15 4 oC

0:00:55

A sample of copper absorbs 43 6 kJ of heat, resulting in a temperature rise of 75 0°C, determine the

0:01:46

If you inflate a balloon from a volume of 0 100 L to 1 85L, against atmospheric pressure 1 00 atm, h

0:01:56

Draw the appropriate molecular orbital diagram and determine which of the following are paramagnetic

0:02:46

How many of the following molecules are polar? PCl5 COS XeO3 SeBr2

0:03:27

The titration of a 10 00 mL sample of HCL solution of unknown concentration requires 12 54 ml of a 0

0:03:13

The titration of 80 0 mL of an unknown concentration of H3PO4 solution requires 126 mL of 218 M KOH