Answer:
Explanation: Circle
Solve for area
A=πr2
onversion result for two surface area units:
From unit Symbol Equals Result To unit Symbol
1 square centimeter cm2 , sq cm = 1.27 ∅ 1-centimeter circles ∅ 1 cm
Amount : 18 ∅ 1-millimeter circles (∅ 1 mm)
Equals : 0.14 square centimeters (cm2 , sq cm)
Fraction : 7/50 square centimeters (cm2 , sq cm)
To look for the value of the equilibrium constant for the cell where n=1, it is computed by:
Eo = RT / nF * ln(K)
(Eo * nF) /RT = ln(K)
(0.135 * 1mol* e- * 9.65E4C/mol*e) / (8.314J / molK * 298K) = ln(K)
10.52 = lnK
e^10.52 = e ^ lnK
K = e ^263/25
K = 37049.12 is the answer.
Answer:
The answer is
<h2>1.74 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of magnesium = 11.81 g
volume = 6.80 mL
The density of the metal is
We have the final answer as
<h3>1.74 g/mL</h3>
Hope this helps you
Answer:
3 significant digits
Explanation:
The first 0 don't count (that's the rule in significant digits). So 3,0,0 are left over. Count them and total will be 3 significant digits. (remember the last zero count if there is a decimal but the first zeros doesn't count even with the decimals)
Neutrons are the only subatomic particles that have no charge.
