Anybody wanna help me with number 22? (Chemistry)

Provide the IUPAC name for the following compound: a. 2,4,5-Trimethyl-4-propylheptane b. 4-Isobutyl-4,5-dimethylheptane c. 4-sec

mel-nik [20]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The correct option is A

That is 2,4,5-Trimethyl-4-propylheptane

Explanation:

Looking at the structure the longest carbon chain is 7 as shown on the second uploaded image

Also from the diagram of the structure we can identify that is longest chain has 3 methyl group attachment and one propyl group attachment

Now going through this longest chain the numbering of this attachment them the lowest number is the correct way so as we can see

2,4,5-Trimethyl-4-propylheptane gives the lowest numbering compared to 3,4,6-Trimethyl-4-propylheptane so the correct IUPAC names is 2,4,5-Trimethyl-4-propylheptane

8 0

4 years ago

In what order are chemical elements arranged on the periodic table?

Gala2k [10]

Answer:

an increasng atomic number/ increasing proton count

Explanation:

3 0

3 years ago

is it a b c or d Help please i'll mark you the brainlest no links seriously it's not helpful This graph depicts the motion of a

konstantin123 [22]

Option D

The car is accelerating, because if it were at rest you wouldn't see the line, and if the car was going at constant speed (forwards or backwards) then the line would be straight.

Have a luvely day!

7 0

3 years ago

Read 2 more answers

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 8.10kg of water at 33.9 degree

Anuta_ua [19.1K]

Answer:

309.1K

Explanation:

Step 1: Convert the flown heat to Joule

We will use the relationship 1 kJ = 1,000 J.

$69.0kJ \times \frac{1,000J}{1kJ} = 69.0 \times 10^{3} J$

Step 2: Convert the mass of water to gram

We will use the relationship 1 kg = 1,000 g.

$8.10 kg \times \frac{1,000g}{1kg} = 8.10 \times 10^{3} g$

Step 3: Convert the initial temperature to Kelvin

We will use the following expression.

K = °C + 273.15 = 33.9°C + 273.15 = 307.1 K

Step 4: Calculate the final temperature

We will use the following expression.

$Q = c \times m \times (T_f - T_i)$

where,

Q: heat

c: specific heat capacity

m: mass

T f: final temperature

T i: initial temperature

$T_f = \frac{Q}{c \times m} + T_i = \frac{69.0 \times 10^{3}J }{4.18J/g.K \times 8.10 \times 10^{3}g} + 307.1K = 309.1K$

3 0

3 years ago

(2 pts) The solubility of InF3 is 4.0 x 10-2 g/100 mL. a) What is the Ksp? Include the chemical equation and Ksp expression. MW

Aleonysh [2.5K]

Answer:

a) Ksp = 7.9x10⁻¹⁰

b) Solubility is 6.31x10⁻⁶M

Explanation:

a) InF₃ in water produce:

InF₃ ⇄ In⁺³ + 3F⁻

And Ksp is defined as:

Ksp = [In⁺³] [F⁻]³

4.0x10⁻²g / 100mL of InF₃ are:

4.0x10⁻²g / 100mL ₓ (1mol / 172g) ₓ (100mL / 0.1L) = 2.3x10⁻³M InF₃. Thus:

[In⁺³] = 2.3x10⁻³M InF₃ × (1 mol In⁺³ / mol InF₃) = 2.3x10⁻³M In⁺³

[F⁻] = 2.3x10⁻³M InF₃ × (3 mol F⁻ / mol InF₃) = 7.0x10⁻³M F⁻

Replacing these values in Ksp formula:

Ksp = [2.3x10⁻³M In⁺³] × [7.0x10⁻³M F⁻]³ = 7.9x10⁻¹⁰

b) 0.05 moles of F⁻ produce solubility of InF₃ decrease to:

7.9x10⁻¹⁰ = [x] [0.05 + 3x]³

Where x are moles of In⁺³ produced from solid InF₃ and 3x are moles of F⁻ produced from the same source. That means x is solubility in mol / L

Solving from x:

x = -0.018 → False solution, there is no negative concentrations.

x = 6.31x10⁻⁶M → Right answer.

Thus, solubility is 6.31x10⁻⁶M

3 0

4 years ago