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3 years ago

The alcohol functional group contains the elements of oxygen hydrogen and carbon.

Chemistry

2 answers:

dlinn [17]3 years ago

6 0

Answer:False

Explanation:

saul85 [17]3 years ago

3 0

It is FALSE. The alcohol or alwa ok functional group has a general formula of;
CnH₂n₊₁OH
Although, Carbkn is present in the alcohol group, it is not part of the functional group. The functional group is called hydroxyl group. And it is represented as OH. This means that it consists only of Oxygen and Hydrogen.
Hope that helped. Have a nice day

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Calcuate the number of<br> grams of solute in 453.9mL<br> of 0.237 M calcium acetate

AysviL [449]

The number of grams : 17.082 g

<h3>Further explanation</h3>

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large {\boxed {\bold {M ~ = ~ \dfrac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

453.9 mL of 0.237 M calcium acetate

$\tt mol=M\times V=0.237\times 0.4539=0.108$

mass

MW Ca(C₂H₃OO)₂ : 158,17 g/mol

$\tt mass=mol\times MW\\\\mass=0.108\times 158.17=17.082~g$

4 0

3 years ago

How many grams of NaCl would need to be added to 1001 g of water to increase the boiling temperature of the solution by 1.500 °C

Usimov [2.4K]

Answer : The mass of NaCl needed would be, 86.1 grams.

Explanation :

Formula used for Elevation in boiling point :

$\Delta T_b=i\times k_b\times m$

or,

$\Delta T_b=i\times k_b\times \frac{w_2\times 1000}{M_2\times w_1}$

where,

$\Delta T_b$ = change in temperature = $1.500^oC$

$k_b$ = boiling point constant = $0.5100^oC/m$

m = molality

i = Van't Hoff factor = 2 (for NaCl electrolyte)

$w_2$ = mass of solute (NaCl) = ?

$w_1$ = mass of solvent (water) = 1001 g

$M_2$ = molar mass of solute (NaCl) = 58.5 g/mol

Now put all the given values in the above formula, we get:

$1.500^oC=2\times (0.5100^oC/m)\times \frac{w_2\times 1000}{58.5g/mol\times (1001g)}$

$w_2=86.1g$

Therefore, the mass of NaCl needed would be, 86.1 grams.

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3 years ago

Heating water so that it boils is an example of _____.

Leni [432]

Answer:

Exothermic change

Explanation:

Hope this helps and sorry if it isnt the answer you were looking for.

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3 years ago

Who was the first chemist to perform truly quantitative experiments?

Strike441 [17]

Chemistry II, Zumdahl 7th edit, Chapter#2 Questions Bank
A B
The first chemist to perform truly quantitative experiments was? Robert Boyle
The scientist whom discovered the Law of Conservation of Mass is also called the Father of Modern chemistry.Who is that scientist?

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4 years ago

What is the pH of a solution with [OH-] = 5.40 x 10-3 M?

igomit [66]

pH: 5.4E-3
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3 years ago