C8H18O2(g) → 2 C3H6CO(g) + C2H6(g) DTBP acetone ethane
a) t1/2 = ?
b) At what time the partial
pressure of DTBP 100 mm
Hg
c) k= ?
d)What will be the total
gas pressure when partial
pressure of DTBP is 700
mm Hg?

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?