Aluminum is the pure metal element from which the Duralumin alloy is made.
Duralumin contains aluminum and copper. An alloy developed first by a German metallurgist. Dura is actually part of the trade name: dura for durable.
More durable than raw aluminum it is used in airplane frames, laminated with coat of aluminum. Combining strength of the alloy and corrosion resistance of pure aluminum.
Known :
M1 = 2 M
V1 = 100 mL
M2 = 4 M
Solution :
M1 • V1 = M2 • V2
(2 M)(100 mL) = (4 M)(V2)
V2 = 50 mL
C - one single type of atom
Answer : To find the molar mass of unknown gas we need to solve the equation of rate of diffusion and molecular weight of the gases, which is as follows;
here the mol wt of gas B is not known so we take it as '<em>x'
</em>on solving we get 7 X
/ 4.9 X
<em>
</em>mol. wt of unknown gas =
20.0 g
Answer:
molecular forces binding them together is broken and the wax turn into liquid.
Hope this helps!