A compound
its refers to a substance formed when two or more types of atoms bond chemically
The answer is A: Between 50 and 5,000 amino acids
Given-
Hydrogen ion concentration pH = 0.008
Now,
we know that pH + pOH = 14
pOH = 14-0.008
pOH = 13.992
Answer:
2.07 Kcal heat must be added to completely melt the platinum.
Explanation:
Given data:
Molar heat of fusion = 4.700 Kcal / mol
Mass of platinum = 85.5 g
Heat of fusion = ?
Solution:
Formula:
ΔH = n × molar heat of fusion
n = number of moles
Now we will calculate the number of moles:
Number of moles = mass / molar mass
Number of moles = 85.5 g /195.08 g/mol
Number of moles = 0.44 mole
ΔH = n × molar heat of fusion
ΔH = 0.44 mol × 4.700 Kcal / mol
ΔH = 2.07 Kcal
The molarity of the solution will be 4.97 M.
<h3>What is molarity?</h3>
It is the number of moles of solutes per 1 liter of solvent or solution.
Mole of 34.1 g NaCl = 34.1/58.44 = 0.5835 mol
117.3 mL = 117.3/1000 = 0.1173 L
Molarity of the solution = 0.5835/0.1173 = 4.97 M
More on molarity can be found here: brainly.com/question/2817451
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