Author Question: If a room requires 25.4 square yards of carpeting, what is the area of the floor in units of ft2? (3 ... (Read 78 times)

DelorasTo · **on:** Aug 27, 2018

If a room requires 25.4 square yards of carpeting, what is the area of the floor in units of ft2? (3 ft = 1 yd)

A) 76.2 ft2
B) 8.47 ft2
C) 282 ft2
D) 229 ft2
E) 68.6 ft2

Question 2

How many C2H4 molecules are contained in 45.8 mg of C2H4? The molar mass of C2H4 is 28.05 g/mol.

A) 9.83 1020 C2H4 molecules
B) 7.74 1026 C2H4 molecules
C) 2.71 1020 C2H4 molecules
D) 3.69 1023 C2H4 molecules
E) 4.69 1023 C2H4 molecules