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A sample of neon has a volume of 575 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1262 mmHg?
Write the full symbol for each isotope (give both A and Z for each isotope). How many protons, and how many neutrons are present in the nucleus of each isotope?
Standard Enthalpies of Formation: acetic and AB2 = - 25.65 kCal/ mole,A++ = -8.65 k Cal/ mole,Temperature = 10 Degree Celsius determine pK,
Determine the enthalpy change if The heat released when 24.9 grams of Potassium K reacts with excess H2O water is 124 kilo joules?
Three solutions 61.0 mL of 0.2 M KNO3; 63.0 mL of 0.3 M Ca(NO3)2; and 69.0 mL of 0.385 M KCl were poured together to make one new solution.
Consider a glass of 215 mL of water at 28°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
a sample of nitrogen gas kept in a container of vulume 2.43 L and temp 27degree C exerts a pressure of 4.83 atm. calculate the number of moles of gas present
A stock solution is prepared by adding 23 mL of 1.6 M Pb(ClO3)2 to enough water to make 50 mL. How many moles of ClO3- are in 24 mL of the stock solution?
Find the activity coefficient of H+ in a solution containing 0.010M HCl plus 0.040M KClO4. What is the pH of the solution?
For a gas sample of N molecules that consists of N1 molecules of mass m1 and N2 molecules of mass m2, follow through a derivation which led to the result PV=1/3mv2 and PV = nRT.
what is a good conductor at high temperature and a poor conductor at low temperature? YBa2Cu3O7 GaAs S Cu
The volume of the gas collected =500 ml then determine the mass of O 2 is collected? The vapor pressure of H 2 O at 25 degree Celsius =23.8 torr
The activation energy for a reaction is found to be 80 kj/mol. calculate the temperature at which the rate will be ten times that of 0 deg. celsius.
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