What volume is occupied at stp-0.2 mole of ammonia?
Answers
Answer:
If 1 mole have 22.4L of volume
then 0.2 moles will have 0.2 ×22.4= 4.48
Answer:
We have studied in previous classes that 1 mole of any substance occupies 22.4 L of volume at STP. This is also referred to as standard molar volume. It is given to us that 3.49 g of ammonia is taken into consideration. This means that 3.49 g of ammonia is 0.2 moles.
Explanation:
N
2
+3H
2
⟶2NH
3
Number of moles of N
2
in 140g=
28
140g
=5 moles of N
2
Number of moles of H
2
in 30g=
2
30
=15 moles of H
2
moles N
2
+3H
2
⟶2NH
3
at t=0 5 15 -
after reaction 5−5×1 15−3×5 2×5
Thus 10 moles of NH
3
produced after reaction
as number of moles=
volume at STP
volume of product
⇒10=
22.4L
V
⇒V=224L
Thus 224L of ammonia is produced.
"NH3" redirects here. For NH
+
4
, see Ammonium. For other uses, see NH 3 (disambiguation) and Ammonia (disambiguation).
Ammonia
Stereo structural formula of the ammonia molecule
Ball-and-stick model of the ammonia molecule
Space-filling model of the ammonia molecule
Names
IUPAC name
Ammonia[1]
Systematic IUPAC name
Azane
Other names
Hydrogen nitride
R-717
R717 (refrigerant)
Amidogen
Hydrogen amine
Identifiers
CAS Number
7664-41-7 check
3D model (JSmol)
Interactive image
3DMet
B00004
Beilstein Reference 3587154
ChEBI
CHEBI:16134 check
ChEMBL
ChEMBL1160819 check
ChemSpider
217 check
ECHA InfoCard 100.028.760 Edit this at Wikidata
EC Number
231-635-3
Gmelin Reference 79
KEGG
D02916 check
MeSH Ammonia
PubChem CID
222
RTECS number
BO0875000
UNII
5138Q19F1X check
UN number 1005
CompTox Dashboard (EPA)
DTXSID0023872 Edit this at Wikidata
InChI
SMILES
Properties
Chemical formula NH3
Molar mass 17.031 g·mol−1
Appearance Colourless gas
Odor Strong pungent odour
Density
0.86 kg/m3 (1.013 bar at boiling point)
0.769 kg/m3 (STP)[2]
0.73 kg/m3 (1.013 bar at 15 °C)
0.6819 g/cm3 at −33.3 °C (liquid)[3] See also Ammonia (data page)
0.817 g/cm3 at −80 °C (transparent solid)[4]
Melting point −77.73 °C (−107.91 °F; 195.42 K) (Triple point at 6.060 kPa, 195.4 K)
Boiling point −33.34 °C (−28.01 °F; 239.81 K)
Critical point (T, P) 132.4 °C (405.5 K), 111.3 atm (11,280 kPa)
Solubility in water
47% w/w (0 °C)
31% w/w (25 °C)
18% w/w (50 °C)[5]
[clarification needed]
Solubility soluble in chloroform, ether, ethanol, methanol
Vapor pressure 857.3 kPa
Acidity (pKa) 32.5 (−33 °C),[6] 9,24 (of ammonium)
Basicity (pKb) 4.75
Conjugate acid Ammonium
Conjugate base Amide
Magnetic susceptibility (χ) −18.0·10−6 cm3/mol
Refractive index (nD) 1.3327
Viscosity
10.07 µPa·s (25 °C)[7]
0.276 mPa·s (−40 °C)
Structure
Point group C3v
Molecular shape Trigonal pyramid
Dipole moment 1.42 D
Thermochemistry
Std molar
entropy (S⦵298) 193 J/(mol·K)[8]
Std enthalpy of
formation (ΔfH⦵298) −46 kJ/mol[8]
Hazards
GHS labelling:[10]
Pictograms GHS04: Compressed Gas GHS05: Corrosive GHS06: Toxic GHS09: Environmental hazard
Signal word Danger
Hazard statements H280, H314, H331, H410
Precautionary statements P260, P273, P280, P303+P361+P353, P304+P340+P311, P305+P351+P338+P310
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
310COR
Flash point 132 °C (270 °F; 405 K)
Autoignition
temperature 651 °C (1,204 °F; 924 K)
Explosive limits 15,0–33,6%
Lethal dose or concentration (LD, LC):
LD50 (median dose) 0.015 mL/kg (human, oral)
LC50 (median concentration)
40,300 ppm (rat, 10 min)
28,595 ppm (rat, 20 min)
20,300 ppm (rat, 40 min)
11,590 ppm (rat, 1 hr)
7338 ppm (rat, 1 hr)
4837 ppm (mouse, 1 hr)
9859 ppm (rabbit, 1 hr)
9859 ppm (cat, 1 hr)
2000 ppm (rat, 4 hr)
4230 ppm (mouse, 1 hr)[9]
LCLo (lowest published) 5000 ppm (mammal, 5 min)
5000 ppm (human, 5 min)[9]
NIOSH (US health exposure limits):[11]
PEL (Permissible) 50 ppm (25 ppm ACGIH- TLV; 35 ppm STEL)
REL (Recommended) TWA 25 ppm (18 mg/m3) ST 35 ppm (27 mg/m3)
IDLH (Immediate danger) 300 ppm
Safety data sheet (SDS) ICSC 0414 (anhydrous)
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