If a solution is "concentrated" it means:

Idon’t know how to solve this question

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.)

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?