1 You are interested in which type of dog food your dog likes best. You buy 3 different types and
give your dog one type each day for 3 days. You put the same amount in each bowl at the
same time in the same place each day. You measure how much your dog ate each day. What is
the independent variable?
(2 points)
how much your dog eats (which your dog likes best)
the different types of dog food
your dog
Mr. Beast
2
You are interested in which type of dog food your dog likes best. You buy 3 different types and
give your dog one type each day for 3 days. You put the same amount in each bowl at the
same time in the same place each day. You measure how much your dog ate each day What is

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.

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)