Answer:
Solution that is 0.100 M CH3COOH (acetic acid)
and 0.100 M NaCH3COO (sodium acetate)
Find pH of buffer solution:
CH3COOH(aq) + H2O ↔ CH3COO-
(aq) + H3O+(aq)
[CH3COOH] [CH3COO-
] [H3O+]
initial 0.100 0.100 ≈0
-x x x
equil 0.100 – x 0.100 + x xFind pH of buffer solution:
CH3COOH(aq) + H2O ↔ CH3COO-
(aq) + H3O+(aq)
Ka = [CH3COO-
][H3O+
]
[CH 3COOH] = (.100 + x)x
(.100 - x) = 1.8 x 10-5
x = 1.80 x 10-5 M
pH = 4.7
Explanation:
For the reaction to take place the energy of the reactants must reach to the energy level of the products:
we have 900 J in the reactants and 9000 J for the products so the reactants need 8100 J to reach to the value of energy of products (900 + 8100 = 9000)
So the correct answer is C. <span>The reaction absorbs 8100 J of energy from the surroundings as it proceeds. </span>
The mass of carbon dioxide that would be produced will be 22 kg
<h3>Combustion of carbon</h3>
The combustion of carbon in air can be represented by the equation:
C + O2 ---> CO2
The mole ratio of C to O2 to CO2 is 1:1:1.
Mole of 6kg of carbon = mass/molar mass
= 6000/12
= 500 moles
Equivalent mole of CO2 produced = 500 moles
Mass of 500 moles CO2 = mole x molar mass
= 500 x 44.01
= 22,005 g or 22 kg approximately
More on combustion reactions can be found here: brainly.com/question/13649083
.<span>The most common theme found in the Harlem Renaissance art was that of presenting a well educated, sophisticated African-American.
Explanation:
</span>Additionally, the Harlem Renaissance<span> was viewed primarily as a literary movement </span>targeted<span> in </span>Harlem<span> and growing out of the black migration </span>and therefore the<span> emergence of </span>Harlem because of the<span> premier black metropolis </span>within u. s.<span> Music and theatre were mentioned </span>in brief<span>, </span>a lot of<span> as background </span>and native<span> colour, as providing innovation for poetry </span>and local<span> colour for fiction </span>Harlem Renaissance<span>, an </span>efflorescence of<span> African </span>yank<span> culture, </span>significantly within the inventive<span> arts, </span>and therefore the most powerful movement<span> in African </span>yank<span> literary history. some common themes were: alienation, </span>position<span>, use </span>of people<span> material, use of the Blues tradition.</span>
Hmm, I am not quite sure but if I am probably your best bet so I'd go with, either B or D.
