The total number of moles of solute particles present in 1L (exact) of aqueous 0.057 m hno3 is 0.166 mol
Initial moles of HNO3 = 1Lx 0.083 mol HNO3/1 L
The HNO3 is a strong acid that can be completely dissociated in the following way.
HNO3→H + NO
1 mol 1 mol 1 mol
The HNO3 is dissociated into two particles (Kt and NO3). So that,
total moles particles = 0.083 mol (K) + 0.083 mol (NO) = 0.166 mol
The number of moles of solute = mass of solute ÷ molar mass of solute, where mass is measured in grams and molar mass (defined as the mass of one mole of a substance in grams) is measured in g/mol.
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Answer:
Graphite is insoluble in water and organic solvents - for the same reason that diamond is insoluble. Attractions between solvent molecules and carbon atoms will never be strong enough to overcome the strong covalent bonds in graphite. conducts electricity.
Explanation:
Brainlest please?
Answer:
C
Explanation:
Because 2 x n square gives the total energy level been absorbed = 2 x16
=32
Answer:
of heat energy will be released
Explanation:
Balanced reaction-
![\frac{3}{2}H_{2}+\frac{1}{2}N_{2}\rightarrow NH_{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7DH_%7B2%7D%2B%5Cfrac%7B1%7D%7B2%7DN_%7B2%7D%5Crightarrow%20NH_%7B3%7D)
According to balanced equation,
moles of
produces 1 mol of
to release 46.17 kJ of heat.
Molar mass of
= 2.016 g/mol
Number of moles = (mass)/(molar mass)
So, 28 kg of
= 28000 g of ![H_{2}](https://tex.z-dn.net/?f=H_%7B2%7D)
=
moles of ![H_{2}](https://tex.z-dn.net/?f=H_%7B2%7D)
=
moles of ![H_{2}](https://tex.z-dn.net/?f=H_%7B2%7D)
So.
moles of
react to release
heat or
of heat
Answer: Calcium
Explanation: The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant <u><em>metal</em></u> in the earth's crust. The metal is trimorphic, harder than sodium, but softer than aluminium.
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