Answer:
The answer to your question is E = 83.2 J
Explanation:
Data
Element: Gold
Initial temperature = T1 = 5°C
Final temperature = T2 = 37°C
mass = 20 g
Specific heat = 130 J/kg°K
Process
1.- Convert temperature to kelvin
T1 = 273 + 5 = 278°K
T2 = 273 + 37 = 310°K
2.- Convert mass to kg
1000 g --------------- 1 kg
20 g --------------- x
x = (20 x 1)/1000
x = 0.02 kg
3.- Formula
E = mC(T2 -T1)
4.- Substitution
E = (0.02)(130)(310 - 278)
E = (0.02)(130)(32)
E = 83.2 J
All you have to do is a simple division "parts over the whole"
12.3 grams H/ 110 grams compound x 100= 11.2%
I want to say Neutrons.
Hope this helps!
Answer:
12.21 x 10⁻¹ m
Explanation:
Given:
(2.22 x 10⁶cm) x (5.5 x 10⁻⁵m)
Find:
Solution;
Computation:
(2.22 x 10⁶cm) x (5.5 x 10⁻⁵m)
[2.22 x (10⁶/100)m] x (5.5 x 10⁻⁵m)
[2.22 x 10⁴m] x (5.5 x 10⁻⁵m)
12.21 x 10⁻¹ m
<span>Looking at the equation, 2 moles of FeO are produced from every 2 moles of CuFeS2. That means 8 moles of CuFeS2 will produce 8 moles of FeO (assuming there is sufficient oxygen, O2, in the reaction)</span>
