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3 years ago

Whats Orbital Notation for sodium

Chemistry

1 answer:

Tema [17]3 years ago

5 0

Answer:

The p orbital can hold up to six electrons. We'll put six in the 2p orbital and then put the remaining electron in the 3s. Therefore the sodium electron configuration will be 1s22s22p63s1.

Explanation:

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When heated up with propanoyl chloride, which of the following nitrogen-cont compounds would NOT result in an amide? A. triethyl

mario62 [17]

Answer:

Option A is correct. A tertiary amine will not form an amide with acyl chlorides they can only transform acyl chlorides into ketenes.

Explanation:

(a). Reaction of acyl chloride with aniline: Aniline is the simplest primary amine. The -NH2 group is attached directly to the benzene ring. The equation of reaction is given below;

CH3COCl + 2C6H5NH2----------> CH3CONHC6H5 +C6H5NH3Cl.

The products of the reaction are The products are N-phenylethanamide,C6H5NH2 and phenylammonium chloride, C6H5NHCl.

(b). Reaction of acyl chloride with primary and secondary amine:

The -NH2 is attached to an alkyl group for the primary and secondary amine. Typical reaction equation for a primary amine with acyl chloride is given below;

CH3COCl + CH3NH2------------------> CH3CONHCH3 + HCl.

The HCl will further react with NH3 to produce The salt is called methylammonium chloride.

(c). Reaction of acyl chloride with amine: the equation of reaction is given below;

CH3COCl + NH3 --------------> CH3CONH2 + HCl.

The hydrogen chloride produced reacts with excess ammonia to form ammonium chloride;

NH3 + HCl ---------------> NH4Cl.

4 0

4 years ago

Which of the following is NOT a factor in how much voltage is produced by a

telo118 [61]

Answer:

How fast the magnet in the generator is moving through the coiled wire

Explanation:

Another name for an electric generator is the electric motor. It is a device that is used to convert mechanical energy into electrical energy.

It comprises of a rectangular coil of insulated wire called armature which rotates about a fixed axis. Powerful magnets provides the required magnetic field. A commutator made of split ring copper and two carbon brushes are attached to it.

The voltage produced by the electric motor depends on;

i) The strength of the magnetic field.

ii) The number of turns of the coil

iii) The current across the armature

7 0

3 years ago

When 131.0 mL of water at 26.0°C is mixed with 81.0 mL of water at 85.0°C, what is the final temperature? (Assume that no heat i

JulsSmile [24]

Answer:

63.52°C is the final temperature

Explanation:

1) 131.0 mL of water at 26.0°C

Mass of water = m

Volume of the water =131.0 mL

Density of the water = 1.00 g/mL

$Density=1.00 g/mL=\frac{m}{131.0 mL}$

m = 131.0 g

Initial temperature of the water = $T_i$ = 26.0°C

Final temperature of the water = $T_f$

Change in temperature , $\Delta T=T_f-T_i$

Heat absorbed 131.0 g of water = Q

$Q=m\times c\times \Delta T$

2) 81.0 mL of water at 85.0°C

Mass of water = m'

Volume of the water =81.0 mL

Density of the water = 1.00 g/mL

$Density=1.00 g/mL=\frac{m'}{81.0 mL}$

m' = 81.0 g

Initial temperature of the water = $T_i'$ = 85.0°C

Final temperature of the water = $T_f'$

Change in temperature , $\Delta T'=T_f'-T_i'$

Heat lost by 81.0 g of water = Q'

$Q'=m'\times c\times \Delta T'$

After mixing both liquids the final temperature will become equal fro both liquids.

$T_f=T_f'$

Since, heat lost by the water at higher temperature will be equal to heat absorbed by the water at lower temperature.

Q=-Q' (Law of conservation of energy.)

Let the specific heat of water be c

$m\times c\times \Delta T=m'\times c\times \Delta T'$

$131.0 g\times c(T_f-26^oC)=-(81.0.0 g\times c(T_f-85^oC))$

$T_f=63.52^oC$

63.52°C is the final temperature

4 0

4 years ago

To run a thin layer chromatography experiment with a chemical substance, begin by marking a horizontal line near the bottom of a

r-ruslan [8.4K]

Answer:

TLC is thin-layer chromatography, a chromatography technique which is used for separating the non-volatile mixtures.

Explanation:

To run a thin layer thin layer chromatography experiment with a chemical substance, begin by marking a horizontal line near the bottom of TLC plate with PENCIL. Place a SMALL spot of the substance onto the line. For the mobile phase add a small amount of SOLVENT at the bottom of TLC chamber. Place the plate in, then COVER the chamber. Once the mobile phase approaches the top of the plate, remove the plate and mark the SOLVENT line. Note the positions of the spot and calculate the Rf if needed.

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3 years ago

Is it true or false that atoms form bonds by sharing physical properties

anygoal [31]

False. atoms form bonds in different ways with their electrons. in ionic bonds, atoms donate electrons and in covalent bonds, atoms share electrons

4 0

3 years ago