To find the volume of a flask, it was first evacuated so that it contained no gas at all. when 4.40 g of carbon dioxide was introduced, it exerted a pressure of 90 kpa at 27 celcius

We use ideal gas equation,

,

 or

Here, V is the volume, P is pressure and T is temperature and   , m is the mass and M is the molar mass and R is universal gas constant its value of 8.3144621 L kPa/K mol

Given, , and  .

The molar mass of the carbon dioxide, .

Substituting these values in above equation, we get

.

Thus, the volume of the flask is 2.77 L.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles