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lubasha [3.4K]
1 year ago
10

A student decreases the temperature of 556 cm^3 balloon from 278 K to 231 K. Assuming constant pressure, what should the new vol

ume of the balloon be?
Chemistry
1 answer:
julia-pushkina [17]1 year ago
6 0
In this problem, Charles' law is applicable since constant pressure with varying volume and temperature are given. Charles' law derived from ideal gas law is expressed as \frac{ V_{1} }{ T_{1} }=  \frac{ V_{2} }{ T_{2} }. Subsituting V1=556 cm3, T1=278 K and T2=231 K, V2 or the new volume is 462 cm3. 
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Perform the following conversions:
kozerog [31]

The temperature in in Celsius is 5826.85 degree Celsius and Fahrenheit is 10520.33.

To express temperature in kelvin and Celsius two different relations are used,  The formula to convert Fahrenheit to Celsius we use the formula T(K) = (T(°F) + 459.67)× 5/9 here T(k) mean temperature in kelvin and T(F) is temperature in Fahrenheit so by putting the given data we get (6100 − 273.15) × 9/5 + 32 = 10520.33°F and so now we obtained the temperature in kelvin so to convert   kelvin to Celsius we use this formula °C=K−273.15, so by putting the given data 6100 − 273.15 = 5826.85°C.Kelvin, Celsius and Fahrenheit are the three units to measure the temperature.

To learn more about Temperature,

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6 0
7 months ago
Help!!!!
evablogger [386]

Answer:

!atoms in the nitrogen family.. have 5 valence electrons. They tend to share electrons when they bond. Other elements in this family are phosphorus, arsenic, antimony, and bismuth.

5 0
1 year ago
500ml of a buffer solution contains 0.050 mol nahso3 and 0.031
nydimaria [60]

Answer:

The answers are explained below

Explanation:

a)

Given: concentration of salt/base = 0.031

concentration of acid = 0.050

we have

PH = PK a + log[salt]/[acid] = 1.8 + log(0.031/0.050) = 1.59

b)

we have HSO₃⁻ + OH⁻ ------> SO₃²⁻ + H₂O

Moles i............0.05...................0.01.................0.031.....................0

Moles r...........-0.01.................-0.01................0.01........................0.01

moles f...........0.04....................0....................0.041.....................0.01

c)

we will use the first equation but substituting concentration of base as 0.031 + 10ml = 0.031 + 0.010 = 0.041

Hence, we have

PH = PK a + log[salt]/[acid] = 1.8 + log(0.041/0.050) = 1.71

d)

pOH = -log (0.01/0.510) = 1.71

pH = 14 - 1.71 = 12.29

e)

Because the buffer solution (NaHSO3-Na2SO3) can regulate pH changes. when a buffer is added to water, the first change that occurs is that the water pH becomes constant. Thus, acids or bases (alkali = bases) Additional may not have any effect on the water, as this always will stabilize immediately.

4 0
2 years ago
How can miscible liquids that different boiling points be separated
Afina-wow [57]

Answer:

By boiling and further condensing the liquid with the lowest boiling point.

Explanation:

Hello there!

In this case, according to the attached diagram, it turns out possible for us to infer that the mechanism whereby miscible liquids with different boiling points are separated is distillation, because the flask is heated until the boiling point of the liquid with the lowest value, in order to boil it and subsequently condense it, whereas the liquid with the highest boiling point remains in the flask; and therefore, the two liquids are separated.

Regards!

3 0
1 year ago
For an atom’s electrons, how many energy sublevels are present in the principal energy level n = 4?
defon
"n" represents principal energy level or principal quantum number. Principal energy levels are then subdivided into sublevels. The level of principal energy level is always equal to number of sublevels. Therefore if <span>principal energy level</span> = 4, then there are also 4 sublevels present, namely: 4s, 4p, 4d and 4f sublevels.
3 0
2 years ago
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