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ser-zykov [4K]
3 years ago
15

(2) 8.1.3 Write down the structural formula of alcohol used in this reaction. ​

Chemistry
1 answer:
vitfil [10]3 years ago
7 0

Answer:

-OH

Explanation:

Alcohols generally have the structural formula OH

for example, ethanols structural formula is C2H5OH

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WILL GIVE BRAINLY
worty [1.4K]

In order to compute mean, you have to add all values of the data set up and divide by the number of data values there are.

In this case, the total sum of all data values is: 81+88+69+65+87=390

The number of data values is 5

To compute mean: 390/5=78

The mean height of the corn stalks is 78cm (C)

3 0
3 years ago
Read 2 more answers
What is the pH of 500 mL of water after the addition of 1 mL of 2M NaOH?
Fudgin [204]

Answer:

pH = 11.60

Explanation:

When we add a base, we are increasing [OH⁻], so the pH will be totally basic.

pH of water = 7

Basic pH > 7

We are adding 2 M . 1 mL = 2 mmoles

2 mmoles of OH⁻ are contained in 501 mL of total volume.

[OH⁻] = 2 mmol / 501 mL =  3.99×10⁻³ M

- log 3.99×10⁻³ M = 2.39 → pOH

pH = 14 - pOH → 11.61

Water equilibrium

2H₂O  ⇄  H₃O⁺   +  OH⁻          Kw = 1×10⁻¹⁴

NaOH  →  Na⁺   +  OH⁻

8 0
3 years ago
How many grams of NaCl are required to make 150.0mL of a 5.000 m solution
Yanka [14]

The  number of  grams of NaCl  required  to make 150.0 ml of a 5.000m solution  is  43.875  grams


<u><em>calculation</em></u>

Step 1:  calculate  moles of NaCl

moles=  molarity x  volume in liters

volume in liters =  150.0  ml/1000= 0.15  l

moles is=  5.000mol/l  x0.15  l  =0.75  moles


Step2 :  find  mass

mass=  moles  x molar  mass

molar mass  of NaCl= 23 +35.5 = 58.5  g/mol

mass= 0.75  moles x58.5 g/mol = 43.875 grams

6 0
4 years ago
In what period will you find chlorine​
Ber [7]

Answer:

Chlorine can be found in Period 3.

Explanation:

Periods on the periodic table are the rows (horizontal sections) that group elements together. By looking across Period 3, you will find Cl (chlorine).

4 0
3 years ago
Match the following family of elements to its group.
docker41 [41]

Explanation:

To solve this problem, we simply use the periodic table of elements which groups elements based on their atomic numbers.

The atomic number of an element is the number of protons it contains. The protons are the positively charged particles within an atom.

  • The vertical arrangement of elements on the periodic table is the group.
  • The horizontal arrangement of elements is the period.

Now;

Noble gases  belongs to group 18

Alkali earth metals belongs to group 2

Halogens belongs to group  17

Alkali metals belongs to group 1

Transition metals belongs to group 3-12

7 0
3 years ago
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