Phosphates and deoxyribose
Answer:
A. 5.5 × 10⁻¹⁰ M, acidic
Explanation:
Step 1: Given data
Concentration of H₃O⁺: 1.8 10⁻⁵ M
Step 2: Calculate the concentration of OH⁻
We will use the ionic product of water.
Kw = 1.0 × 10⁻¹⁴ = [H₃O⁺] × [OH⁻]
[OH⁻] = 1.0 × 10⁻¹⁴/[H₃O⁺] = 1.0 × 10⁻¹⁴/1.8 10⁻⁵ = 5.5 × 10⁻¹⁰ M
Step 3: Determine if the solution is acidic, basic or neutral
- If [H₃O⁺] > 10⁻⁷ M, the solution is acidic.
- If [H₃O⁺] = 10⁻⁷ M, the solution is neutral.
- If [H₃O⁺] < 10⁻⁷ M, the solution is basic.
Then, the solution is acidic.
The aluminium substances would retain the most heat for the longest period of time.
<h3>What is retaining heat?</h3>
Retaining of heat is the quantity of heat that a substance or medium can store over time or the amount of heat that a specific amount of that substance can hold in itself. Substances that store heat 'well' (for a long time) also require a long time to heat up.
Copper and aluminium have the highest thermal conductivity among the more common metals, whereas steel and bronze have the lowest. When determining the metal to utilise for a certain application, heat conductivity is a critical quality to consider.
In addition, potassium has the highest specific heat and the longest heat retention time. Polystyrene, a polymeric polymer, can retain heat for up to 11 hours. This implies it can hold heat for extended periods of time.
Hence the aluminium substances would retain the most heat for the longest period of time.
Learn more about heat retention here
brainly.com/question/1780793
#SPJ1
Answer:
Solution
Verified by Toppr
2 molL
−1
Explanation :
Concentration =
Volume of solution
Moles of solute
We assume that potassium nitrate dissolves in the given volume of solvent without gross change in volume.
Concentration =
101.10gmol
−1
404g
×
