what are the physical and chemical properties of ammonia?
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Ammonia is a colourless gas with a characteristically pungent smell. It is lighter than air, its density being 0.589 times that of air. It is easily liquefied due to the strong hydrogen bonding between molecules; the liquid boils at −33.3 °C (−27.94 °F), and freezes to white crystals at −77.7 °C (−107.86 °F).
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it is an inorganic with the NH2OH. The pure material is a white, unstable crystalline compound, almost always provided and used as an aqueous solution. It is basic because it has hydroxyl ions.
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['(1) The characteristics of gases are described fully in terms of four parameters or measurable properties:', '(i) The volume, V, of the gas.', '(ii) Its pressure, P.', '(iii) Its temperature, T.', '(iv) The amount of the gas (i.e., mass or number of moles).']
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['Actual yield is the mass of ammonia that is actually produced during the chemical reaction. ... ', 'Theoretical yield of ammonia (NH3) is the mass of product predicted by the balanced chemical equation for the reaction. ... ', 'Percentage yield = (actual yield ÷ theoretical yield) × 100.']
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['Volume.', 'Mass.', 'Weight.', 'Temperature.', 'Freezing point.', 'Boiling point.', 'Melting point.']
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Nitrogen family elements display a wide range of physical and chemical properties. Their compounds may be transparent, either diamagnetic or paramagnetic at room temperature, and may conduct electricity when heated. Because the atoms form double or triple bonds, the compounds tend to be stable and potentially toxic.
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NH3, is ammonia. It is a neutral molecule. Charges reveals to us that hydrogen has a charge of +1 while nitrogen has a charge of -3. Therefore, an atom of ammonia has zero overall charge, a neutral charge.
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Nh3, or ammonia, is definitely polar. Nitrogen is more electronegative than hydrogen, thus pointing the dipole moments to the nitrogen. Nitrogen's lone pair pushes the hydrogen away, thus making the dipole moments point in a common direction without cancelling out, making Nh3 a polar molecule.
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The standard enthalpy of formation of NH3 is -46.0 kJ mol-1.
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Ammonia–water complexes, where NH3 molecules are weakly hydrogen-bonded to surface water molecules are found on the surface of aqueous ammoniacal solutions [3687]. Ammonia is very soluble in water (it is the most soluble gas) where it reacts to form ammonium ions and hydroxide ions at appropriate pH.
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Physical properties : Sodium nitrate is a white crystalline solid with a density of 2.26 g/mL and a melting point of 308 °C. It exists as either trigonal or rhombohedral crystals. Chemical properties: Sodium nitrate is the salt of a strong acid and hence, dissociates completely in water into sodium and nitrate ions.
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Why does ammonia dissolve in water? Ammonia has the ability to form hydrogen bonds. When the hydrogen bonds between water molecules are broken, they can be replaced by equivalent bonds between water and ammonia molecules. Some of the ammonia also reacts with the water to produce ammonium ions and hydroxide ions.
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Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties. ... Reactions of a substance, either with itself or with another substance are chemical properties. Physical and chemical properties can be used to classify a substance as ionic or molecular.
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Ammonium is a molecule consisting of three hydrogen atoms and one nitrogen atom.
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Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.
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Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) = 2NH3(g) Assume 4 molecules of nitrogen and 9 molecules of hydrogen are present.
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NH3 is a Lewis base ( electron rich) and BF3 is Lewis acid ( electron deficient), so ammonia gives its electron pair to BF3, which having vacant orbital takes up electron and completes its octet removing it's electron deficiency completely and form a coordinate covalent bond between them.