Physical Chemistry Answers

The concentration of vinigar (acetic acid) is .8393 M. When it reacts with baking soda (NaHCO3), it creates sodium acetate, water, and of course carbon dioxide. What volume of CO2 is produced if 500. mL of vinegar reacts with 32.5 g of baking soda at 25 deg C and 1.0 atmospheres of pressure?

in a certain atom the last electron has a 3d2 electron configuration write the electron configuration of the element using a noble gas as a core

If 22.7 moles of aqua regia (a compound made from 22.7 moles of HNO₃ and 68. 1 moles of HCl or 90.8 moles of H, 68.1 moles of Cl, 22.7 moles of N and 68.1 moles of O) is neutralised by 22.7 moles of the mentioned mixture of NaOH and KOH (composed of 22.7 moles of Na, 68.1 moles of K, 90.8 moles of O and 90.8 moles of H) then how many moles each of Na, N, O, H, K, Cl are produced as the final product?

Find the velocity of an electron with radius 10mm and magnetic field strength 0.5T

A water sample was alkaline to both phenolphthalein and methyl orange end point. 50 ml water sample required 20 ml N/50 H2SO4 for P end point and another 5 ml for complete neutralisation Calculate type and amount of alkalinity present.

The exact amount of diluted nitric acid on a mass mof copper. The nitrogen monoxide obtained occupies a volume of 0.56l at 25°C and a pressure of 98×10^3Pa. What is the mass of copper used? What is the mass of copper nitrate obtained by evaporation of the solution?

Using the particle in a box model, the wavelength of electromagnetic radiation needed to excite electronically to the first excited state, a linear polyene of length 12 angstroms and containing 8 π-electrons (me = 9.11 x 10^-31 kg), is:?

If 16.0 g of Mg (OH)2 and 11.0 g of HCI are combined...what is the excess reactant?

Determine the final temperature when 100 g of water at 20.0 °C mixes with 400 g of water at 80 °C and with 500 g of water at 60.0 °C 

how many liters of oxygen are needed to react when 8.23 x 10^26 molecules of water are produced at stp?