Violet has found a container of aluminum bromide that says it contains 1.28 moles of
AIBr 3. What is the mass of this sample of
aluminum bromide? Please round your
answer to two digits after the decimal point,
and remember to include correct, complete
units (including substance formula).

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Why is retrograde motion an apparent motion