Physical Chemistry Answers

Compare symmetry elements of Td and Oh point groups

What is a force that produces a change in motion

How many grams of CO2 are produced when 100 g C4H10 undergoes combustion with 200 g O2?

Use the following molar masses: C4H10=58g/mol, O2=32 g/mol and CO2=44g/mol.

Using the accepted values for the Ksp of Ag2SO4 at 25 oC, calculate the concentration in mol dm-3 of Ag+ in a saturated solution of the salt. accepted kep =1.2 X10^-5

how many grams of NaCl should be weighed to prepare 1.00L of 601 ppm solution of Na+? how many grams of NaCl should be weighed to prepare 1.00 L of XYZ ppm solution of Na+?

Calculate the numbers of formula units of 50.0 mol NaNO₃

Draw the molecular orbitals formed by the s-s combination of atomic orbital. also illustrates the electron densities for these orbitals and explain them.

What gas law are you going to use to solve the following problem: If 22.5 L of nitrogen at 748 mmHg are compressed to 725 mm Hg at constant temperature. What is the new volume? 

How many grams of NaCl should be weighed to prepare 1.00 L of 601 ppm solution of Na⁺? 

how long will it takes for radium 226 to decay to leave a total of 2.22g assuming that radium has a half-life of 1600 years.