Help with this one too please !

Chemistry

1 answer:

satela [25.4K]3 years ago

4 0

The second one and the 2 last ones

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Which of the following will dissolve in water, but not dissociate into ions.

Sholpan [36]

Answer:

caci2

Explanation:

6 0

3 years ago

What is the molarity of a solution that is composed of 10 grams of Sodium Chloride ( NaCl) dissolved in 3.50 L of water

Gennadij [26K]

<u>Answer:</u> The molarity of solution will be 0.049 M

<u>Explanation:</u>

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

$\text{Molarity of solution}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (L)}}$

We are given:

Given mass of sodium chloride = 10 g

Molar mass of sodium chloride = 58.44 g/mol

Volume of solution = 3.50 L

Putting values in above equation:

$\text{Molarity of NaCl}=\frac{10 g}{58.44g/mol\times 3.50}\\\\\text{Molarity of NaCl}=0.049M$

Hence, the molarity of solution will be 0.049 M

6 0

3 years ago

Draw the conjugate bases of pyrrole and cyclopentadiene. Explain Why is the sp3 hybridized C―H bond of cyclopentadiene more acid

olga_2 [115]

Answer:

The explanations are given in the section below

Explanation:

First step:

We need to understand the acid-base equilibrium of the reaction. Bear in mind that the conjugate acid-base pairs are species that differ by one proton. Furthermore, one is a Lewis acid (meaning the ability to protons) and the conjugate base (accepts protons)

A simple conjugate base is obtained by removing one proton from an acid as shown below:

HX ⇄ A⁻ + H⁺

The diagrams are as follows: