Explanation:
hope it make sense to u :)
Answer:
Given:
Mass (m) = 10.0 g
Rise in temperature (∆T) = 8.58°C
Energy required (Q) = 73.2 J
To Find:
Specific heat of the substance (c)
Explanation:
Specific heat (c) of a substance is the energy required to raise the temperature of one gram of the substance by one degree Celsius.
Formula of specific heat is given as:
By substituting value of Q, m & ∆T in the formula we get:
Answer:
805.3cal
Explanation:
All neutralization reactions produce heat when occurs.
The reaction of HCl with NaOH produce heat increasing the aqueous medium in 5.43°C. The equation of the released energy is:
Q = S×m×ΔT
<em>Where Q is heat, </em>
<em>S is specific heat of the solution (1.00cal/g°C)</em>
<em>m is mass of water: 148.3g</em>
<em>ΔT is change in temperature: 5.43°C</em>
<em />
Q = 1.00cal/g°C×148.3g×5.43°C
Q = 805.3cal
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Answer:
3 moles of hydrogen, , are needed to react completely with 1 moles of nitrogen,
Explanation:
Let us consider the Reaction of Nitrogen and hydrogen
Two nitrogen atom reacts with 3 hydrogen atom to form ammonia. So it is clear from the chemical equation that 3 moles of hydrogen atom is essential to react completely with nitrogen.
Also when we see the atomic structure of hydrogen and nitrogen ,Hydrogen has only one electron its shell and nitrogen has 5 electron in its valency shell. so for an Nitrogen to have a completely filled shell, it needs 3 more electrons .Thus is need 3 hydrogen atom
Answer:The moles of H+(aq) equal the moles of OH-(aq)
Explanation: