Other Chemistry Answers

A sample of copper absorbs 4,000 Joules of heat energy, and it undergoes a temperature change from 98℃ to 199℃. What is the mass of the copper sample? (the specific heat of copper is 0.385 J/g ℃)

in general, ionic bonding occurs during the reactions of...?

in general, ionic bonding occurs during the reactions of...?

give number of moles and number of particles for atoms in 15.0 g of neon, Ne (20.18 g/mol)

1.60 g O2 is reacted in excess S , if the percent yield of the reaction is 95.0% what is the yield of SO2

A 3.00L container contains 326.14 g of chlorine gas, 2.50 mol of iodine gas and 1.92 mol of neon gas. The total pressure inside the container was measured to be 6.78 atm. What is the partial pressure of chlorine gas?

A buffer is prepared by adding 0.7387 g of NH4Cl (MM = 53.4915 g/mol) to 1.00 L of 0.2098 M NH3. Kb (NH3) = 1.8 x 10—5 . Calculate the pH.

What is the energy possessed by a radiation of wavenumber 1250 cm–1

In the reaction of hydrogen fluride gas at equilibrium the constant is 0.04. A sample of hydrogen fluroride is initially placed in a 3 L flask. At equilibrium the concentration of F2 was 0.300 (mol)/(L). what were the initial and equillibrium concentrations of HF?

Write down the equation for the alpha decay of Gold-185. (The symbol for gold is Au and its atomic number is 79). What is the mass of the daughter nuclide in your equation?