Answer:
Explanation:
The pressure and the number of moles are constant, so, to calculate the volume, we can use Charles' Law.
(a) Volume at -5 °C
Data:
V₁ = 871mL; T₁ = 25 °C
V₂ = ?; T₂ = -5 °C
Calculations:
(i) Convert temperatures to kelvins
T₁ = ( 25 + 273.15) K = 298.15 K
T₂ = (-5 + 273.15) K = 268.15 K
(ii) Calculate the new volume
(b) Volume at 95 °F
95 °F = (95 - 32) × 5/9 = 63 × 5/9 = 35 °C
35 °C = (35 + 273.15) K = 308.15 K
(c) Volume at 1095 K
Answer: B. Whole continents can move
Explanation:
Lets assume that 100 grams of the compound are present.
Carbon mass: 88.14 g
Hydrogen mass: 11.86 g
Moles carbon: 88.14/12 = 7.34
Moles hydrogen: 11.86/1 = 11.86
The moles of carbon are 7.34 and the moles of hydrogen are 11.86.
E= m× C2
... than:
m=E/c 2
m=1,366•10^3/3•10 A 8 2
m=1,518•10^14 kg