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d1i1m1o1n [39]
3 years ago
12

What causes currents in open water to move in a curved path rather than a straight path?

Chemistry
2 answers:
AveGali [126]3 years ago
8 0
The Earth's rotation and the way the land is shaped around the water.
SCORPION-xisa [38]3 years ago
6 0
Earth's rotation causes the water to move in a curve; this is a manifestation of The Coriolis Force.

Hope this helps :)
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Calculate the vapor pressure (in torr) at 298 K in a solution prepared by dissolving 42.4 g of the non-volatile non-electrolye u
timofeeve [1]

Answer:

The vapor pressure at 298 K for this solution is 50,49 Torr.

Explanation:

We have to apply Raoult's law to solve this which its formula is:

P pure sv° - P sl = P pure sv° . X (molar fraction)

ΔP = P pure sv° . X (molar fraction)

58,9 Torr - P sl = 58,9 Torr . X

Molar mass urea CO(NH2)2: 60,06 g/m

Molar mass ethanol: 46,07 g/m

Moles for urea: 42,4 g /  60,06 g/m = 0,705 moles

Moles for ethanol: 195 g / 46,06 g/m = 4,233 moles

X (molar fraction): moles from solute / moles from solute + moles from solvent

X (molar fraction): 0,705 / 0,705 + 4,233 = 0,142

58,9 Torr - P sl = 58.9 Torr . 0,142

58,9 Torr - 8,40 Torr = P sl

50,49 Torr = P sl

8 0
3 years ago
PLZZZZZZZZ HELLLLLLLLLLLLLLLLLPPPPPP!!!!! soo stuckkkkk
Anna [14]
Hey I’m going on a date
5 0
3 years ago
How many grams are in .11 moles of Cu
kodGreya [7K]

Answer:

m= 6.9905 = 7 g

Explanation:

The formula is m= M.n

m= mass (g), M= Molar mass (g/mole), n= moles (moles)

Molar mass of Cu is 63.55

=) m= 63.55*0.11

   m= 6.9905 = 7 g

5 0
3 years ago
3. At 35 C, a sample of gas has a volume of 256 ml and a pressure of 720.torr. What would the volume
STatiana [176]

Answer:

The volume will be 185.83 mL.

Explanation:

Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T} =k

Where P = pressure, T = temperature, k = Constant

Boyle's law says that the volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure. Boyle's law is expressed mathematically as:

P*V=k

Where P = pressure, V = volume, k = Constant

Finally, Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is kept at a constant pressure. For a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of the movement of the gas molecules. .

In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

\frac{V}{T} =k

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

\frac{P*V}{T} =k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

\frac{P1*V1}{T1} =\frac{P2*V2}{T2}

In this case:

  • P1= 720 torr
  • V1= 256 mL
  • T1= 35 C= 308 K (being 0 C= 273 K)
  • P2= 1.25 atm= 950 torr (being 1 atm= 760 torr)
  • V2= ?
  • T2= 22 C= 295 K

Replacing:

\frac{720 torr*256 mL}{308 K} =\frac{950 torr*V2}{295 K}

Solving:

V2= \frac{295K}{950 torr} *\frac{720 torr*256 mL}{308 K}

V2= 185.83 mL

<u><em>The volume will be 185.83 mL.</em></u>

6 0
3 years ago
Will the volume of a fixed amount of a gas increase, decrease, or remain unchanged with an increase in pressure at constant temp
Ghella [55]

Answer: The final volume decrease with an increase in pressure at constant temperature

Explanation:

According to Boyle's law, pressure of a gas is inversely proportional to the volume of a gas at constant temperature and constant number of moles.

{P_1V_1}={P_2V_2}

where,

P_1 = let initial pressure of gas = p

P_2 = final pressure of gas = 2p

V_1 = initial volume of gas = v

V_2 = final volume of gas = ?

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

{p\times v}={2p\times V_2}

V_2=\frac{v}{2}

Thus the final volume decrease with an increase in pressure at constant temperature

5 0
3 years ago
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