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AlexFokin [52]
3 years ago
5

E85 fuel is a mixture of 85% ethanol and 15% gasoline by volume. What mass in kilograms of E85 (d = 0.758 g/mL) can be contained

in a 14.0-gal tank?
Chemistry
1 answer:
NISA [10]3 years ago
4 0

Convert gal to liters:

               14.0 gal x 3.785 L / gal  =    53.0 L

Multiply volume by density  (the density would have the units of .758 g/mL   or  .758 kg / L)

               53.0 L    x   .758 kg/L    =   <span> 40.2 kg</span>

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Someone please help me??
Scrat [10]
The answer is 0.18

Because the equation for finding the molarity of a solution is:

Moles divided by Liter of solution,

so, you dissolve 0.32 mol of KCL in 1759 ml of Water 1759 ml is 1.759 liters when you plug the numbers in you get 0.18

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kwrob
6 0
3 years ago
both sides in the war used military observers in hydrogen-filled balloons to watch the enemy's movements
lesya692 [45]

Answer:

Yes.

Explanation:

Hydrogen-filled balloons were widely used by the militaries during World War I (1914–1918). The main purpose of these hydrogen-filled balloons to detect movements of enemy troops and to provide direction to the artillery fire. Balloons were the targets of opposing aircraft because they knew the purpose of these balloons so they hit it whenever seen by the enemies so we can say that both sides used hydrogen-filled balloons as military observer to watch the enemy's movements.

7 0
3 years ago
A large balloon contains 233 L of neon at 22.0C and 760. Torr. If the balloon ascends to an altitude where the temperature is -
shepuryov [24]

Answer: The volume in the balloon at the higher altitude is 260 L

Explanation:

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 760 torr

P_2 = final pressure of gas = 511 torr

V_1 = initial volume of gas = 233 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 22.0^0C=(22.0+273)K=295K

T_2 = final temperature of gas = -52.0^0C=(-52.0+273)K=221K

Now put all the given values in the above equation, we get:

\frac{760\times 233}{295}=\frac{511\times V_2}{221}

V_2=260L

The volume in the balloon at the higher altitude is 260 L

3 0
3 years ago
The elevation difference between points W and X is-
andrey2020 [161]

Answer:

0 meters

Explanation:

I guessed on the test and I got it right lol.

7 0
3 years ago
A skittish squirrel is climbing vertically on a tree. Its
ollegr [7]

Answer: 1

Explanation:

6 0
3 years ago
Read 2 more answers
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