Soccer fields vary in size. A large soccer field is 115 m long and 85.0 m wide. Assume that 1 m equals 3.281 ft. What are its dimensions in feet

The dimensions are 377.3 feet by 278.9 feet.

Explanation:

Given that,

Length of a soccer field = 115 m

Width of a soccer field = 85 m

We need to assume that, 1 m equals 3.281 ft

We need to find the dimensions in feet.

As 1 m = 3.281 ft

⇒ 115 m = (115×3.281) feet

= 377.315 feet ≅ 377.3 feet

⇒ 85 m = (85×3.281) feet

= 278.885 feet ≅ 278.9 feet

Hence, the dimensions are 377.3 feet by 278.9 feet.

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.