Astore is offering a 20% discount on all sales over $50. if you purchase a shirt and a pair of jeans for $62.50, what is the amount of the discount you would receive? a. $10.00 b. $12.50 c. $15.63 d. $50.00

let's  assume that the f₂  gas  has ideal gas behavior. 

then we can use ideal gas formula,pv = nrt where, p is the pressure of the gas (pa), v is the volume of the gas (m³),  n is the  number of moles of gas (mol), r is the universal gas constant ( 8.314 j mol⁻¹ k⁻¹) and t is temperature in kelvin.

moles = mass / molar mass

molar mass of f₂ =  38 g/mol

mass of  f₂  = 76 g

hence, moles of f₂ = 76 g / 38 g/mol = 2 mol

p = ? v =  1.5 l = 1.5 x 10⁻³  m³

n = 2 mol

r =  8.314 j mol⁻¹ k⁻¹ t = -37 °c = 236 k by substitution,

p x  1.5 x 10⁻³  m³ = 2 mol x 8.314 j mol⁻¹ k⁻¹ x 236 k

                          p = 2616138.67 pa

                          p =  25.8 atm = 26 atm

hence, the pressure of the gas is 26 atm.

answer is "a".

2/3

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.