Answer:
0.372 mol (corr. to 3 sig. fig.)
Explanation:
no. of mole of Ag₂O
= mass of Ag₂O ÷ relative atomic mass of Ag₂O
= 43.1 ÷ ( 107.9 × 2 + 16 )
≈ 0.185936151 mol
∵ Ratio of Ag:Ag₂O = 2:1
∴ no. of mole of Ag
= no. of mole of Ag₂O × 2
≈ 0.371872303 mol
= 0.372 mol (corr. to 3 sig. fig.)
Answer:
0.3415 J/g °C
Explanation:
M1 = 213.0g
c1 = ?
T1 = 70.2°C
T3 = 25.6 °C
T2 = 22.5°C
C2 = 4.186 J/g°C
Vol. of water = 250mL = 250cm³
p (density of water ) = 1g/L
p = mass / volume
mass (m) = density (p) * volume (v)
m = 1 * 250 = 250g
Heat loss by metal = heat gain by water
Q1 = Q2
Mc∇T = Mc∇T
Mc (T1 - T3) = Mc* (T3 - T2)
213 * c * (70.2 - 25.6) = 250 * 4.186 * (25.6 - 22.5)
(213 * 44.6)c = 1046.5 * 3.1
9499c = 3244.15
c = 0.3415 J/g.°C
The specific heat capacity of the metal is 0.3415 J/g °C
3 is trans form 4 is subsection zone and 5is convergent
Symbiosis describes close<span> interactions between two or more different species. There are four main types of symbiotic relationships: mutualism, commensalism, parasitism and competition.</span>
<span>Because iron is an element meaning that it only contains iron atoms, pure iron is easily oxidized meaning that oxygen readily reacts with the surface of the iron which causes it to rust. Therefore, since the iron joint replacement is surrounded by wet tissues would it would rust and flake off which could cause serious problems. </span>
