Answer:
$182 is the value of the gold in the coin
Explanation:
Diameter is 2r, the ratio of the coin is = 1.62cm / 2 = 0.81cm
Following the formula of the volume of the coin:
V = π r² h
V = π*(0.81cm)²*0.085cm
V = 0.172cm³ = mL
As the density of the gold is 19.32g/mL, the mass of 0.1752mL of gold is:
0.1752mL * (19.32g / mL) =
3.385g is the mass of the coin
As the price of the gold is $53.90 / g, the value of the gold in the coin is:
3.385g * ($53.90 / g) =
<h3>$182 is the value of the gold in the coin</h3>
<h2>
Answer:</h2><h3>Force = m × a. Or, F = [M] × [L1 T-2] = M1 L1 T-2. This is also called the dimensional equation of force or the force dimension formula. Therefore, the Force is represented dimensionally as M1 L1 T-2.</h3>
6.02x10^23 would be it.
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Answer:
0.085 (Ms)⁻¹
Explanation:
Half life = 12 s
![[A_o]](https://tex.z-dn.net/?f=%5BA_o%5D)
is the initial concentration = 0.98 M
Half life expression for second order kinetic is:
![t_{1/2}=\frac{1}{k[A_o]}](https://tex.z-dn.net/?f=t_%7B1%2F2%7D%3D%5Cfrac%7B1%7D%7Bk%5BA_o%5D%7D)
So,
k = 0.085 (Ms)⁻¹
The rate constant for this reaction is <u>0.085 (Ms)⁻¹ .</u>
