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3 years ago

Describe how a positive result for the Baeyer Test will look. What is being oxidized? What is being reduced?

Chemistry

1 answer:

Ksivusya [100]3 years ago

5 0

Answer:

This reaction is sometimes referred to as the Baeyer test. Because potassium permanganate, which is purple, is reduced to manganese dioxide, which is a brown precipitate, any water‐soluble compound that produces this color change when added to cold potassium permanganate must possess double or triple bonds.

Explanation:

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Witch of these animals was unable to adapt to a warmer climate

ss7ja [257]

What are the animals to choose from?

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3 years ago

g 10.00 mL of phosphoric acid (H3PO4) are titrated with 0.1000 M sodium hydroxide. 15.00 mL of the sodium hydroxide solution are

aliya0001 [1]

Answer: The molarity of phosphoric acid is 0.05 M

Explanation:

A neutralization reaction is defined as the reaction in which an acid reacts with a base to form a salt and water molecule.

At equivalence, moles of acid becomes equal to the moles of base. The equation for the neutralization follows:

$n_1M_1V_1=n_2M_2V_2$ ........(1)

where,

$n_1, M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid that is $H_3PO_4$

$n_2, M_2\text{ and }V_2$ are the n-factor, molarity and volume of the base that is NaOH

Given values:

$n_1=3\\M_1=?M\\V_1=10.00mL\\n_2=1\\M_2=0.1000M\\V_2=15.00mL$

Plugging values in equation 1:

$3\times M_1\times 10.00=1\times 0.1000\times 15.00\\\\M_1=\frac{1\times 0.1000\times 15.00}{3\times 10.00}\\\\M_1=0.05M$

Hence, the molarity of phosphoric acid is 0.05 M

6 0

3 years ago

Classify methanol (ch3oh) as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.

MrRa [10]

Methanol(CH3OH) is a nonelectrolyte as it is not readily ionized when melted and dissolved, and a poor conductor of electricity when it is in solution.
Nanelectrolyte Contains covalent bonds and typically nonpolar molecules. Methanol doesn't dissolve in water, as the H of the alcohol functional group is not acidic enough so we can't easily separate it from the molecule.

8 0

4 years ago

Read 2 more answers

Water and heat the water to 50 C7

Wittaler [7]

Answer:

107,200J or 25.62 kcal

Explanation:

The latent heat of water is 4.2J/g °C so the energy needed to increase the tempearture from 80 °C to 100°C will be:

40g * 4.2J/g °C * (100-80°C )= 3,360J

The heat of vaporization of water is 2260J/g so the energy need to change water from liquid to gas is:

40g * 2260J/g = 90,400J

The heat needed to increase steam temperature should be same as latent heat of water, 4.2J/g °C . So, the energy needed to increase temeprature from 100 to 180 will be:

40g * 4.2J/g °C * (180-100°C )= 13,440J

The total energy needed will be: 3,360J + 90,400J +13,440J= 107,200J

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4 years ago

How do modern periodic table arranged

pychu [463]

In the modern periodic table, the elements are arranged according to their atomic number - not their relative atomic mass.

In the periodic table the elements are arranged into:

rows, called periods, in order of increasing atomic number
vertical columns, called groups, where the elements have similar properties

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3 years ago