25 g of a compound is added to 500 mL of water if the freezing point of the resulting solution is
0.57 °C what is the molecular weight of the compound assume no molecular disassociation upon
dissolution Kf equals 1.36 °C/m
O 119 g/mol
90 g/mol
0 60 g/mol
238 g/mol

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.

Modern weaponry has increased the number of deaths in wars and violent conflicts.

The excretory system, need answers for all: )