Ask question

Ask question

All categories

3 years ago

11

The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.90×105 ft3 of helium. If the gas is at 24 ∘

C and 1.0 atm, what mass of helium is in the blimp?

1 answer:

AysviL [449]3 years ago

5 0

Welp that sounds like a complicated prob...Good Luck!

You might be interested in

Which of the following is an Arrhenius acid? A) H2SO4 B) LIOH C)NH2CH3 D) CH3CH3

levacccp [35]

Answer:

Option a, $H_2SO_4$

Explanation:

According to Arrhenius concept of acids and bases, acids are those substances which releases H+ in aqueous solution and bases are those which releases OH- in aqueous solution.

Among the given only $H_2SO_4$ can release $H^+$ in aqueous solution.

$H_2SO_4 \rightarrow 2H^{+} + SO_4^{2-}$

LiOH releases $OH^-$ , therefore it is an Arrhenius base.

$NH_2CH_3$ and $CH_3CH_3$ cannot releases $H^+$ .

So, the correct option is option a.

3 0

3 years ago

Biphenyl, C12H10,C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6.C6H6. At 25 ∘C,25 ∘C, the vapor p

cestrela7 [59]

Answer:

Vapour pressure of solution is 78.151 torr

Explanation:

Molar mass of biphenyl = 154.21 g

Molar mass of benzene = 78.11 g

19.2 g biphenyl = (19.2/154.21) moles of biphenyl = 0.125 moles of biphenyl

33.7 g of benzene = (33.7/78.11) moles of benzene = 0.431 moles of benzene

Total number of moles = (0.125+0.431) moles = 0.556 moles

Mole fraction of benzene in solution = (0.431/0.556) = 0.775

According to Roults law, vapour pressure of solution made from non-volatile solute = $(mole fraction of solvent in solution)\times (vapour pressure of pure solvent)$

Here solute is biphenyl and solvent is benzene

So, vapour pressure of solution = $(0.775\times 100.84)torr$ = 78.151 torr

8 0

3 years ago

How many moles are 1.806 x 10^24 atoms?

djyliett [7]

2.999 is the amount of moles

4 0

3 years ago

In what type of solution was the human cell placed

White raven [17]

Answer:

Isotonic Solution.

Explanation:

There are three types of solutions that can occur in your body based on solute concentration: isotonic, hypotonic, and hypertonic. An isotonic solution is one in which the concentration of solutes is the same both inside and outside of the cell.

4 0

4 years ago

Tom pushes on a 50-kilogram box with a force of 25 newtons. Assuming the surface on which the box moves is frictionless, at what

zhannawk [14.2K]

Assuming the surface on which the box moves is frictionless, the rate at which the box accelerate is equal to 0.5 $m/s^2$ .

<u>Given the following data:</u>

Mass of box = 50 kilogram

Force = 25 newtons.

To determine the rate at which the box accelerate, assuming the surface on which the box moves is frictionless:

Mathematically, Newton's Second Law of Motion is given by the formula;

$Force = mass \times acceleration$

Making acceleration the subject of formula, we have:

$Acceleration =\frac{Force}{mass}$

Substituting the given parameters into the formula, we have;

$Acceleration = \frac{25}{50}$

Acceleration = 0.5 $m/s^2$

Read more on Newton's Law of Motion here: brainly.com/question/1121817

3 0

2 years ago