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Question- What is the density in (g/L) of a sample of nitrogen gas that occupies a volume of 6.78L at a pressure of 2.43 atm and temperature of 40.6 degrees Celsius
Explain each and every step in detail. I need proficient help in the above problems.
6.48 g of NaH2PO4 and 21.96 gm of K2HPO4 are dissolved in sufficient water to make a liter of solution. Calculate the pH of the resulting solution.
Calculate the amount of heat liberated (in kJ) from 411 g of mercury when it cools from 79.0°C to 15.0°C.
Describe the roles played by Max Planck, Niels Bohr, Erwin Schrodinger, Paul Dirac, Albert Einstein and Werner Heisenberg in the development of atomic or quantum theory.
Urea is an organic compound widely used as a fertilizer. its solubility in water allows it to be made into aqueous fertilizer solutions and applied to crops in a spray. what is the maximum number of water molecules that one urea molecule can hydrog..
Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 1.3A>B+C 2. B+2D>C+F A. What is the overall reaction?
Use values of Ksp and Kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3 M OH-. Ksp Cu(OH)2 = 1.3*10^-20 and Kf Cu(OH)42- = 1.3*10^16
How many moles of O are needed to combine with 0.289 mole of C to form the following compounds, CO and CO2
Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed: (a) Eea for CL(g) = -348.6kj/mol. (b) Ei1 for Ca(g) = +589.8kj/mol. (c) Ei2 for Ca(g) = +1145kj/mol.
An unknown metal weighing 13.11 g at a temperature of 81.0*C is placed in a calorimeter containing 25.0 mL of water at a temperature of 25.0*C. The final equilibrium temperature is 30.0*C. What is the specific heat of the metal?
How many mL of 50 wt% sodium hydroxide must be added to water to prepare 500 mL of a 0.400 M solution of sodium hydroxide? The density of the concentrated sodium hydroxide solution is 1.53 g/mL
a sample of hydrogen gas is generated in a closed container by reacting 2.050 g of zinc metal with 12.0 ml of 1.00 m
Consider that there is 26.38 g NaCl in a solution that has a total volume of 1,780 mL with a density of 0.8495 g/mL. A) What is the molarity of NaCl? B)What is the mass/mass %?
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