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Varvara68 [4.7K]
3 years ago
15

NO LINKS RIGHT ANSWERS ONLY!!!!

Chemistry
2 answers:
Ugo [173]3 years ago
7 0
Im pretty sure the answer is D
Mumz [18]3 years ago
6 0
I think the answer is D
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A 1.59 mol sample of Kr has a volume of 641 mL. How many moles of Kr are in a 4.41 L sample at the same temperature and pressure
Marina86 [1]

Answer:

The correct answer is 10.939 mol ≅ 10.94 mol

Explanation:

According to Avogadro's gases law, the number of moles of an ideal gas (n) at constant pressure and temperature, is directly proportional to the volume (V).

For the initial gas (1), we have:

n₁= 1.59 mol

V₁= 641 mL= 0.641 L

For the final gas (2), we have:

V₂: 4.41 L

The relation between 1 and 2 is given by:

n₁/V₁ = n₂/V₂

We calculate n₂ as follows:

n₂= (n₁/V₁) x V₂ = (1.59 mol/0.641 L) x 4.41 L = 10.939 mol ≅ 10.94 mol

5 0
2 years ago
Anyone know how to do this?
castortr0y [4]

Answer:

nah

Explanation:

just ignore this for now I don't know but it wants me to answer stuff

4 0
3 years ago
Si un barco navega en el mismo sentido de la corriente de un rio, consume menos combustible que cuando va en sentido contrario d
aleksley [76]

Answer:

La respuesta a tu pregunta esta abajo.

Explanation:

Cuando un barco navega en un río en el sentido de la corriente, la velocidad que lleva más el impulso que le proporciona la corriente, hace que avance más rápido llegando más pronto a su destino sin tanto esfuerzo del motor. Por lo que gastaría una menor cantidad de combustible.

Cuando el barco se desplaza en sentido contrario a la corriente del motor, la corriente del río hace que su desplazamiento neto sea menor ya que el barco avanza y el río lo regresa un tramo y el esfuerzo del motor el mayor.

En estas condiciones aunque el barco tenga que recorrer la misma distancia que en el caso anterior, en realidad debería sumarse la distancia que lo regresa la corriente y por lo tanto el combustible gastado sera mayor.

7 0
3 years ago
How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane?
Bogdan [553]
We see in the given name of the hydrocarbon that the root word is pentane from 2,2,4-trimethylpentane. Pentane is a hydrocarbon chain that contains 5 carbon atoms. Therefore, the answer to this item is 5 carbons. 
4 0
3 years ago
Read 2 more answers
The distance to nearby stars can be measured by using ?
BigorU [14]

Nearby stars are measured with parallax, which involves two measurements of the star's exact position in the sky.

Hope this helped!

Good luck :p

Brainliest is appreciated <3

~ Emmy

8 0
3 years ago
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