What is the mass of 2.45 miles or c3h403?

215.6 g.

Explanation:

no. of moles (n) = mass/molar mass.

∴ mass of C₃H₄O₃ = (no. of moles)*(molar mass) = (2.45 mol)(88.0 g/mol) = 215.6 g.

23.5

23.5

47.0

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: