The heat of fusion is the heat needed for a molecule to change its form from solid to liquid(melting). The molecular weight for palmitic acid is 256 and you have 0.5 moles, then the number of palmitic acids you have in grams will be:
0.5 moles * (256g/mole)= 128g.
You have 128 g of palmitic acid and its heat of fusion is 39.18 cal/g. The total number of calories you need to melt it all will be: 128g * 39.18cal/g= 5015.04 cal
Answer: MgI2 + Cl2 ⇒ MgCl2 + I2
Explanation: The reaction produced Magnesium chloride MgCl2 and Iodine I2. Also the chemical reaction is already balanced.
Explanation: In a decomposition reaction it is expressed in this generic form:
AB => A + B
where A is a metal and B is a nonmetallic element.
6.49 × 10⁻⁷ m (or) 649 nm
Wavelength and Frequency are inversely proportional to each other. Greater the wavelength smaller the frequency and vice versa.
The relation between wavelength and frequency is as follow,
υ = c / λ
υ = frequency = 4.62 × 10¹⁴ s⁻¹
c = velocity of light = 3.0 × 10⁸ ms⁻¹
λ = wavenumber = ??
Solving above equation for λ.
λ = c / υ
Putting the given values,
λ = 3.0 × 10⁸ ms⁻¹ / 4.62 × 10¹⁴ s⁻¹
λ = 6.49 × 10⁻⁷ m (or) 649 nm
The majority of the air we breathe is made up of nitrogen and oxygen, though you'll also find argon, carbon dioxide and other gases in trace amounts.
It is known that the value of free fall acceleration is g = 6.44 . And, the value of radius of Earth is .
Let us assume that height of the satellite is h.
It is known that,
where, r = (R + h)
Now, formula for height of satellite above the Earth's surface is as follows.
h = r - R
Thus, we can conclude that the satellite is high above Earth's surface.
The height of the satellite moving in a circular orbit above the Earth's surface is the satellite is; 1.5 × 10⁶ m
The formula to find the height of the satellite above the earth's surface is; h = [√(GM/g)] - R
G is gravitational constant = 6.67 × 10⁻¹¹ N.m²/kg²
M is mass of earth = 5.98 × 10²⁴ kg
g is free fall acceleration = 6.44 m/s²
R is radius of earth 6400000 m
h = [√(6.67 × 10⁻¹¹ × 5.98 × 10²⁴/6.44)] - 6400000
h = 1.5 × 10⁶ m
Read more about height of gravitational fall at; brainly.com/question/14460830
Explanation: Reactants are the initial substances that reacts to form products in a chemical reaction.
Answer: The value of the equilibrium constant is 0.00009.
Initial moles of = 0.15 mole
Volume of container = 10 L
Initial concentration of
Moles of at equilibrium= 0.03 mole
equilibrium concentration of [/tex]
The given balanced equilibrium reaction is,
Initial conc. 0.015 M 0 0
At eqm. conc. (0.015-2x) M (2x) M (x) M
The expression for equilibrium constant for this reaction will be,
we are given : 2x= 0.003 M
x= 0.0015 M
Now put all the given values in this expression, we get :
Thus the value of the equilibrium constant is 0.00009.