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marshall27 [118]
3 years ago
11

Which do you think has more mass, 1 mole of fructose, 1 mole of sucrose or 1 mole of aspartame? Explain your reasoning.

Chemistry
2 answers:
pogonyaev3 years ago
6 0

Answer:

i think they would be all the same

Explanation:

they sound like sugars

Alex Ar [27]3 years ago
4 0
1 mole of aspartame because it has more atoms and more of the heavier atoms.
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Which particles in atom could demonstrate that opposite charges attract
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A long (i.e., L &gt;&gt; D) stainless steel rod 6.4 mm in diameter is initially at a uniform temperature of 25°C and is suddenly
sp2606 [1]

Answer:

68.4 seconds

Explanation:

Assume that the temperature of the stainless steel rod will reach 120 C in t seconds. According to lumped – capacity analysis use the following expression to determine the value of t

T- T∞/T₀ – T∞ = e^-(hA/ρcV)t, where T is the required temperature, T∞ is the surface temperature, T₀ is initial temperature of the rod, h is the convection heat transfer coefficient, A is surface are, ρ is density of stainless steel, c is specific head and V is the volume of the rod.

Area of rod = π x d x L and Volume of rod is (π/4) x d² L

T - T∞/T₀ – T∞ = e^-(h x π x d x L/ρc(π/4 x d² x L))t

T - T∞/T₀ – T∞ = e^-(4h/(ρ x c x d))t, d is the radius of the log and L is the length of rod

<em>The value of c and ρ for stainless steel can be obtained from the table of properties of metals</em>

<u>Substitute 120 C for T, 150 C for T∞, 25 C for T₀, 7817 kg/m³ for ρ, 460 J/kg.C for c, 6.4 x 10⁻³ m for d, 120 W/m².C for h in the above equation</u>

T - T∞/T₀ – T∞ = e^-(4h/ρ x c x d))t

120 – 150/25 – 150 = e ^ -(4 x 120/7817 x 460 x 6.4 x 10⁻³)t

0.24 = e^-0.02086t

<u>Take natural log on both sides</u>

㏑0.24 = -0.02086t

T = 68.4 seconds

Thus, the temperature of the stainless steel will reach 120 C in 68.4s

5 0
3 years ago
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