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larisa [96]
4 years ago
6

The figure shows four forces exerted on a box.

Chemistry
1 answer:
lakkis [162]4 years ago
5 0
F2 equals 10 N and F4 equals 2 N
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6 0
4 years ago
A buffer solution is made up of acetic acid (CH3COOH) and sodium acetate (NaCH3COO). The major equilibria in the buffer system a
katrin [286]

The equilibria showing how the acetate buffer adjusts to addition of a small amount of NaOH is:

  • CH3COOH(aq) + H2O(1) → H30+ (aq) + CH3COO (aq)

<h3>What is a buffer?</h3>

A buffer is a solution which resists changes to its pH when small amounts of strong base or acid is added to it.

Buffers are made from solutions of weak acids and their salts or weak bases and their salts.

The equilibria showing how a buffer made from acetic acid and sodium acetate (NaCH3COO) adjusts to addition of a small amount of NaOH is as follows:

  • CH3COOH(aq) + H2O(1) → H30+ (aq) + CH3COO (aq)

Addition of NaOH, a strong base will neutralize the hydronium ion, causing the acetic acid ionization equilibrium to shift to the right to produce more of the acetate ion, the conjugate base.

Learn more about acetate buffer at: brainly.com/question/17490438

3 0
2 years ago
What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.36 atm at 15.0°C?
Rainbow [258]
Hello There! ^_^

Your question: What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.36 atm at 15.0°C..?

Your answer: P1/ T1= P2/ T2
                    
                     Change C to Kelvin
   
                     273+ C= K
               
                     38.3+ 273= 311K
                      
                      15.0+ 273= 288K
                       
                       2.38/ 288= P2/ 311.3
                          
                        740.894= 288 (P2)
                        
                         P2= 2.57 atm.


 Thus, you got you answer!

  Hope this helps!





  

       



    

 

  






4 0
3 years ago
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