Search & Filtering
A gas occupies 19.3 L at STP. What volume will it occupy at 735 torr and 57°C?
For the 488 nm wavelength, a krypton laser produces 5 mW (milli-watts) of power. How many photons of 488 nm light does the laser produce in one second?
For the 488 nm wavelength, a krypton laser produces 5 mW (milli-watts) of power. How many photons of 488 nm light does the laser produce in one second?
1. Assume that in the decomposition of KCIO3 the volume of oxygen gas produced at STP in cm3 is 100 times its molar mass. Calculate the mass of KCI formed in this reaction
What mass of silver metal is produced from an excess of copper wire added to 4.92g of AgNO3?
What is the balanced equation when cupric oxide, a black solid, and aqueous sulfuric
cupric sulfate crystals and water are formed.
Which are the product(s) of this chemical reaction?
FeCl3 + 3NH4OH
-
For a cylinder containing helium gas indicate if cylinder A or cylinder B represents the new volume for the following changes (n and T are constant).
1) pressure decreases
2) pressure increases
Calculate the degree of ionisation and the ph of a 0.01M aqueous solution of formic acid at 298k. Given Ka(HCOOH) = 1.7×10^-4 at 298k.
What is the volume (mL) of 55 g of Pb with the density of 11.29 g/mL
