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inessss [21]
3 years ago
6

Calculate the pH for the following buffer solutions with steps.

Chemistry
1 answer:
max2010maxim [7]3 years ago
5 0

Answer:

Answer is shown on the paper :D

Explanation:

Remember to follow sig-figs.

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A gas is contained in a thick-walled balloon. When the pressure change from 100 kPa to 90.0 kPa, the volume changes from 2.50 L
Orlov [11]
The  temperature  change is   calculated using the  combined  gas law
that  is P1V1/T1  =P2V2/T2
P1=  100KPa
P2=90kpa
v1= 2.50 L
v2= 3.75 L
T1= 303 K
T2=?

T2  is  therefore  =  P2V2T1/P1V1
=( 90  x 3.75  x303)/  (100  x2.50) =  409.05  K
3 0
3 years ago
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Arrange the following elements in order from least to greatest electronegativity:<br> Ca, F, Ne, Fe?
Burka [1]

Answer:

The electronegativity from order of least to highest is:

Ne, Ca, Fe, F

Explanation:

Elements in the periodic table have been arranged based on their level of electronegativity (which is the ability of an atom to attract electrons).

According to Paulings scale of rating elements based on their electronegativity, the electronegativity value of Fe, Ca, Ne, and F are 1.83, 1, 0 and 3.98 respectively.

Hence, based on Pauling scale, the order of electronegativity from least to highest is:

Ne > Ca > Fe > F

6 0
3 years ago
Which of the following statements is true?
Fittoniya [83]

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Es la tercera por qué cuando el material varía va cambiando de estado

Explanation:

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What is the answer for number 2
Bond [772]
This answer is C hope this helped
5 0
3 years ago
Why does warm air raise and cold air sink
ki77a [65]
Warm is less heaver then cold air so warm air rise and cold air sinks
  
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