Answer:
Platinum
Explanation:
Platinum has the largest ionization energy as it is 9 eV , on the other hand nickel has 7.6398 eV. From this explanation it is clear that platinum is the largest ionization energy.
Answer:
1.9139 × 10²⁴ atoms Ca
General Formulas and Concepts:
<u>Chemistry - Atomic Structure</u>
- Reading a Periodic Table
- Using Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
<u>Step 1: Define</u>
127.38 g Ca
<u>Step 2: Identify Conversions</u>
Avogadro's Number
Molar Mass of Ca - 40.08 g/mol
<u>Step 3: Convert</u>
<u /> = 1.91388 × 10²⁴ atoms Ca
<u>Step 4: Check</u>
<em>We are given 5 sig figs. Follow sig fig rules and round.</em>
1.91388 × 10²⁴ atoms Ca ≈ 1.9139 × 10²⁴ atoms Ca
Answer:Carbon compounds are compounds having carbon as an essential element. These have generally covalent bonding.
There are many types of carbon compounds on the basis of the other elements, but the most important of them are hydrocarbons. They are compounds only made up of carbon and hydrogen. Examples can be-
Ethanol (CH3CH2OH)
Acetone [(CH3)2CO]
Butanone [ CH3C(O)CH2CH3]
Explanation:
Answer:
398 mL
Explanation:
Using the equation for molarity,
C₁V₁ = C₂V₂ where C₁ = concentration before adding water = 8.61 mol/L and V₁ = volume before adding water, C₂ = concentration after adding water = 1.75 mol/L and V₂ = volume after adding water = 500 mL = 0.5 L
V₂ = V₁ + V' where V' = volume of water added.
So, From C₁V₁ = C₂V₂
V₁ = C₂V₂/C₁
= 1.75 mol/L × 0.5 L ÷ 8.61 mol/L
= 0.875 mol/8.61 mol/L
= 0.102 L
So, V₂ = V₁ + V'
0.5 L = 0.102 L + V'
V' = 0.5 L - 0.102 L
= 0.398 L
= 398 mL
So, we need to add 398 mL of water to the nitric solution.