From reliable sources in the web, it may be searched that the specific heat of copper is approximately equal to 0.385 J/gC. The amount of heat that is required to raise a certain amount by certain number of degrees is given in the equation,
H = mcpdT
where H is heat, m is mass, cp is specific heat, and dT is temperature difference. Substituting the known values,
186,000 J = (m)(0.385 J/gC)(285C)
m = 1695.15 g
Answer:
the full viral genome is retained in the host cell, but its expression is dramatically restricted, such that few viral antigens and no viral particles are produced.
Explanation:
Answer:
B. HF
Explanation:
Hydrogen bonding is basically a bond between hydrogen and an electronegative element particularly the second-row elements nitrogen (N), oxygen (O), or fluorine (F).
option A.
Although oxygen is present, there are no O - H bond present. The oxygen is bonded to two carbon atoms hence hydrogen bonding is absent.
option B.
Hydrogen is bonded directly to Flourine. Hydrogen bond is present.
option C.
This is an organic compound, only covalent bonds are present in this molecule. No hydrogen bonds,
option D.
Lithium does snot have high electronegativity hence hydrogen bonding is absent.
Answer:
[H₃O⁺] = 6.31 x 10⁻³ M.
Explanation:
- To find the hydronium ion concentration [H₃O⁺], we can use the relation:
<em>pH = - log[H₃O⁺].</em>
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∴ 2.2 = - log[H₃O⁺].
∴ log[H₃O⁺] = - 2.2
<em>∴ [H₃O⁺] = 6.31 x 10⁻³ M.</em>
