A. p block
from 3a-8a are in the p block including halogen
Convert 5.0 to 1027 an you should get your answer
Answer:
3.43 L
Explanation:
By the ideal gas law, when there is a state change, the quantities can be calculated by:
P1*V1/T1 = P2*V2/T2
Where P is the pressure, V is the volume, T is the temperature in K, 1 is the initial state, and 2 the final state.
P1 = 720 kPa, V1 = 562 mL, T1 = 45°C + 273 = 318 K
STP: P = 1 atm = 101.325 kPa, T = 273 K
720*562/318 = 101.325*V2/273
0.371153846V2 = 1272.45283
V2 = 3428 mL = 3.43 L
Ans: 1.4 moles
<u>Given:</u>
Mass of tungsten = 250 g
<u>To determine:</u>
Moles of Tungsten
<u>Explanation:</u>
# moles of a given substance = Mass of the substance in grams/molar mass (g.mol-1)
Atomic mass of W = 184 g.mol-1
# moles of W = 250 g/184 g.mol-1 = 1.359 moles