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maxonik [38]
3 years ago
14

If the molecules in the above illustration react to form NH3 according to the equation N2 3 H2 2 NH3 , the limiting reagent is ,

the number of NH3 molecules formed is , and the number of molecules in excess is
Chemistry
1 answer:
Kamila [148]3 years ago
8 0

Answer:

Follows are the solution to these question:

Explanation:

Given equation:

N_2+3H_2 \longrightarrow 2NH_3

In this equation:

1 N_2 gives = 2NH_3

so,

3N_2 gives=  2 \times 3 = 6 NH_3

similarly:

3H_2 gives = 2NH_3

So, 6H_2 gives = \frac{2}{3}\times 6=4NH_3

Its limited reagent is =N_2

The amount of NH_3 molecules were formed = 4.

and the amount of  H_2 excess molecules are= 1

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A 52.0 g of Copper (specific heat=0.0923cal/gC) at 25.0C is warmed by the addition of 299 calories of energy. find the final tem
Leto [7]

Answer : The final temperature of the copper is, 87.29^oC

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat gained  = 299 cal

m = mass of copper = 52 g

c = specific heat of copper = 0.0923cal/g^oC      

\Delta T=\text{Change in temperature} 

T_{final} = final temperature = ?

T_{initial} = initial temperature = 25^oC

Now put all the given values in the above formula, we get the final temperature of copper.

299cal=52g\times 0.0923cal/g^oC\times (T_{final}-25^oC)

T_{final}=87.29^oC

Therefore, the final temperature of the copper is, 87.29^oC

4 0
4 years ago
Explain the relationship between modern periodic table and electronic configuration ​
LuckyWell [14K]

Answer:

The periodic table displays the chemical elements based on their atomic numbers, electron configurations, and chemical properties.

Explanation:

(got the photo from Ms J Chem)

7 0
3 years ago
Camphor is a ketone compound and is one of the active ingredients in vicks products. if camphor has m+ = 152 and contains 1 doub
nordsb [41]

Answer:

           C₁₀H₁₆O

Explanation:

                   Molecular formula can be determined from parent peak by using rule of thirteen.

Rule of Thirteen:

First divide the parent peak value by 13 as,

                 = 152 ÷ 13

                 = 11.69

Now, multiply 13 by 11,

                 = 13 × 11 (here, 11 specifies number of carbon atoms)

                 = 143

Now subtract 143 from 152,

                 = 152 - 143

                 = 9

Add 9 into 11,

                 = 9 + 11

                 = 20 (hydrogen atoms)

So, the rough formula we have is,

                                                        C₁₁H₂₀

Now, add one Oxygen atom to above formula and subtract one Carbon and 4 Hydrogen atoms as these numbers are equal to atomic mass of Oxygen atom as,

                 C₁₁H₂₀   -------O-------->    C₁₀H₁₆O

Calculate Hydrogen deficiency index as,

                 HDI  =  (2x + 2 - y) / 2

where,

x = C atoms

y = H atoms

                 HDI  =  [2(10) + 2 - 16] / 2

                 HDI  =  (20 + 2 - 16) / 2

                 HDI  =  (22-16) / 2

                 HDI  =  6 / 2

                 HDI  =  3

It means, Camphor contains 1 double bond and two rings. As, HDI of double bond is 1 and HDI of one ring is 1.

7 0
4 years ago
NF3 Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. +- CHONS
hram777 [196]

Here is the correct question.

Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons.

NF3

SBr2

CCl4

Answer:

Explanation:

The objective here is to draw the molecule three molecules by placing atoms on the grids and connecting them with their respective bonds, therefore including all the lone pairs of electrons.

See the attachment below for the diagrams.

The first compound is know as Nitrogentrifluoride. A non-flammable greenhouse gas. It is majorly used for he production of semi conductors. It has a trigonal planar structure.

SBr2: Sulfur dibromide is a yellowish liquid toxic gas. It results as a reaction between SCl_2 and HBr. Its has a Bent Structure.

CCl_4 : carbon tetrachloride has the presence of a colourless liquid with a sweet smell. Carbon tetrachloride is used for different domestic uses such as: cleaning surfaces, fumigating, cleaning metals etc. It has a tetrahedral structure.

8 0
3 years ago
For each element write the Noble gas notation
Rom4ik [11]

Answer:

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7 0
3 years ago
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