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3 years ago

Which compound matches the ir spectrum best?

1 answer:

4 0

Small peak at 3000large peak at 1685F: it contains two benzene rings that is connected by a bunch of carbons and ketone-Explanation: The spectrum shows a stretching absorption consistent with a ketone functional group: carbonyl C=O stretching at ~1685 cm-1. (An aldehyde, by contrast, would also show a ~2700 cm-1 absorption for the carbonyl C-H stretch.) The C=O stretching frequency is consistent with an aromatic ketone, such as in compound F (1,4-diphenyl-1,4-butanedione). In contrast, an aliphatic ketone absorbs at higher energy (~1710 cm-1). The spectrum also shows the typical ~1600 & ~1500 cm-1 absorptions of a phenyl group.

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2 Na + Cl2 → 2 NaCl

Ksivusya [100]

Approximately 71.77 grams. I think so

8 0

3 years ago

Read 2 more answers

A good definition of snow and how snow is important to the water cycle.

IRISSAK [1]

Snow is the result of moisture and low temperatures colliding; when they collide, they become tiny ice crystals. When ice crystals stick to one another, they become snowflakes. Snow is important to the water cycle because when they precipitate to the earth, they start to melt on surfaces warmer than themselves. The melted result becomes water, and when the water either seeps into the ground or flows into a source of water nearby, the water cycle's process repeats all over again.

I hope you like this answer, please Brainliest me, and have a great day! :D

7 0

4 years ago

How can ionic bonds and naming be used in a real life example ?

Stells [14]

Answer:

Melting snow more efficiently in winters, understanding the components of mineral water

Explanation:

Let's split this question into two parts. First of all, ionic bonds:

an example would be the application of the freezing point depression law. Remember that adding a solute to a specific solvent would decrease the freezing point of a solvent. This is the reason why we add ionic salts, NaCl, to snow in order to make it melt. Knowledge of the fact that 1 mol of NaCl, an ionic compound, dissociates into 2 mol of ions, sodium and chloride, yields us a van 't Hoff factor of 2 rather than 1 for non-electrolytes, molecular compounds. This means the same molality of ionic compounds would produce a twice larger decrease in the freezing point of a solvent;
an example for ionic naming is more trivial. Remember the difference between, say, calcium and calcium cation. Sometimes we may read that mineral water is full of calcium. Having chemical knowledge of ionic compound naming would lead us to a conclusion that this is wrong! Mineral water doesn't have any calcium in it, we don't see any metal in mineral water. However, mineral water contains calcium cations, $Ca^{2+}$ and not $Ca$ .

8 0

3 years ago

A triglyceride is a common type of lipid which contains?

nata0808 [166]

Ooooh, triglycerides contain glycerol and three fatty acids

4 0

3 years ago

8. A 10.0-g sample of magnesium reacts with oxygen to form 16.6 g of magnesium oxide. How many grams of oxygen reacted? 9. CHALL

Veronika [31]

Answer:

8. 13.3g of Oxygen is reacted with 10.0g of Magnesium

9. 49.6g of Ammonia (NH₃) reacts with 106.5g of HCl

The law of conservation of mass is observed in the reaction

Explanation:

8. The Relative Atomic Masses of the elements involved are:

Mg=24, O=16

The equation for the reaction is given as

2Mg(s) + O₂(g) → 2MgO(s)

From the equation above

Let's assume that the amount in gram of Oxygen required to react with 10.0g of Mg is x

2(24)g of Magnesium is required to react with (16 x 2)g of Oxygen

10.0g of Magnesium should react with x g of Oxygen

∴ x = (10.0 x (16 x 2))/2(24) = (10.0 x 32)/48 = 13.3g of Oxygen

9. The Relative Atomic Masses of the elements involved in the reaction are

H=1, Cl=35.5, N=14

The equation for the reaction is given as

HCl(g) + NH₃(g) → NH₄Cl(s)

From the equation above

Let's say y equals the amount in grams of Ammonia involved in the reaction

(1 + 35.5)g of HCl reacts with (14+(1 x 3))g of Ammonia

106g of HCl should react with y g of Ammonia

∴ y = (106 x (14 + (1 x 3)))/(1+35.5) = (106 x 17)/36.5 = 49.6g of Ammonia

The law of conservation of mass states that the total mass in a closed system (reaction) remains constant over time (i.e mass is neither gained or lost). In other words, the total mass of the reactant equals the total mass of the product.

Based on the reaction above, the total mass of the reactant (i.e HCl and NH₃) is 53.5g which is the same as the product (i.e NH₄Cl) which is also 53.5g.

3 0

4 years ago