In order for you to calculate for the mass of ammonium carbonate, you need to know the molar mass of it and the nitrogen atoms in the compound. Ammonium carbonate has a molar mass of 96.08 grams per mole. There are two nitrogen atoms in ammonium carbonate which is equal to 28.02 grams per mole. Divide the molar mass of nitrogen to the ammonium carbonate, 28.02/96.08 x 100, we get 29.16wt% nitrogen.
Answer:
29.16%.
Explanation:
You can determine the mass percent, or how much of the total mass of ammonium carbonate is nitrogen, by first determining the mass of nitrogen and the mass of the total compound.
1. the mass of nitrogen in this compound is 2 x 14.007, or 28.014.
2. the mass of ammonium carbonate is 96.09 grams.
To find the percentage of nitrogen in the overall mass of ammonium carbonate, simply divide the mass of nitrogen by the mass of ammonium carbonate and multiply by 100:
28.014/96.09 x 100 ....................... 29.16%.
Also, I got the correct answer :)
can be observed by altering the identity
can be changed without altering the identity of a substance
must be observed through chemical means
2. hydrogen bonding
3. polar covalent bonding
4. nonpolar covalent bonding
The answer is Hydrogen bonding.
Hydrogen bonding among water molecules is responsible for the high specific heat of water the result of which water gains heat very slowly.
Specific heat is the amount of heat per unit mass that is required to raise the temperature by one degree Celsius.
The specific heat of water is 4.186 joules/gram Celcius, which is higher than any other common substance. It is higher than that of a metal.
Thus due to this, water tends to boil at high temperature.
Answer:
Unsaturated solution.
Explanation:
At 60°C, 100.0g of water can dissolve 110g of KNO₃.
By definition, if you add 110g of KNO₃, the solution will be saturated, if you add more than 110g, the solution becomes supersaturated (That means crystals of solute will form), if you add less than 110g, the solution is unsaturated.
In the problem, you are adding 80g of KNO₃(s), that means you made a unsaturated solution.
Answer:
where is the option I can't see plz give the option first the I try to give answer
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(i) State the type of bonding in ammonia.
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The diagram shows 5 eletctron in the outermost shell of Nitrogen atom out of which 3 electrons are involved in the bond formation with 3Hydrogen atoms.
The type of bond in ammonia is Covalent.
Covalent bond is the bond formed by mutual Sharing of electrons by both the atoms taking part in the bond formation.
Nitrogen has 5valence electrons of which only 3 are shares with the 3 atoms of hydrogen (one electron shares with one atom of hydrogen)
Hence, type of bond in ammonia is covalent.
Learn more about covalent bond here ;
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Ammonia (NH3) has a covalent bonding type resulting in a tetrahedral electron-pair geometry, but because of the lone pair, the molecular structure is trigonal pyramidal. The bond angle is slightly less than 109.5⁰ due to the lone pair occupying more space.
The type of bonding in ammonia, which has a molecule structure as shown in the question, is covalent bonding. The ammonia molecule, NH3, has one lone pair and three single bonds which gives it a tetrahedral electron-pair geometry, as shown in Figure 7.18. However, because one of these regions is a lone pair that is not counted in the molecular structure, the molecule assumes a trigonal pyramidal shape.
The lone pair occupies more space than the single bonds, which leads to a slight deviation in the actual bond angles from the idealised angles. The angle in the ammonia molecule is slightly less than 109.5⁰ due to this additional electron pair's space occupancy.
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