How many calcium atoms are in 16,2 of calcium
1. How many calcium atoms are in 16,2 of calcium
We're asked to calculate the number of atoms of Ca in 16,2 g Ca.
What we must first do is convert the given mass of calcium to moles of calcium, using its molar mass (referring to a periodic table, this is 40.08 [tex]\frac{g}{mol}[/tex] )
= 16,2 g Ca [tex](\frac{1 mol Ca}{40,08 g Ca} )[/tex]
= 0,404 mol Ca
Using Avogadro's number, 6,022 × 10²³ [tex]\frac{particles}{mol}[/tex] we can calculate the number of atoms present :
= 0,404 [tex](\frac{6,022 x 10^2^3atoms Ca}{1 mol Ca} )[/tex]
= 2,43 × 10²³ atom Ca
Thanks
sorry if there is a mistake
2. how many atoms in HOBr, PBr5, BF3, C2H6, S8?
KIMIA
Atom
• HOBr = 3 atom
• PBr5 = 6 atom
• BF3 = 4 atom
• C2H6 = 8 atom
• S8 = 8 atom
THANK YOU@ardilutfijulianto
3. The mass of a carbon atom is 2*10^-27g How many carbon atoms are there in 6g of carbon
Answer:
The mass of one carbon atom is 210^-27g, so to find the number of carbon atoms in 6g of carbon, you would divide 6 by 210^-27.
6g / (210^-27g) = 310^26 atoms
There are 3*10^26 carbon atoms in 6g of carbon.
step-by-step breakdown of how to find the number of carbon atoms in 6 grams of carbon:
Write out the given information: the mass of one carbon atom is 2*10^-27g, and you want to find the number of carbon atoms in 6g of carbon.To find the number of atoms, you need to divide the mass of the sample (6g) by the mass of one atom (2*10^-27g).So, set up the equation: 6g / (2*10^-27g) = x (where x is the number of atoms).Solve the equation: 6 / (210^-27) = 310^26 atomsThe final answer is: 3*10^26 atoms.
4. Nadia and Li Qin had a total of 360 buttons. Nadia gave of her buttons to Li Qin. 1 Li Qin then gave of her buttons to Nadia. In the end, each of them had the same number of buttons. How many buttons did Nadia have at first?
Jawaban:
Nadia has 180 start buttons
5. 1. If you assume that the molecular weight of sugars is 342 g/mol, how many moles of sugar are there in one serving? 2. If you assume that the molecular weight of sodium is 23 g/mol, how many moles of sodium are there in one serving? 3. How does the number of atoms of sodium in one serving compare to the number of molecules of sugar?
yessssssssssssssssssss
Jawaban:
ya ndak tau, kok tanya saya:v
Penjelasan:
makasih poinnya
lumayan dapet 50 poin:v
6. Calculate the mass in grams: 0.5 mol of oxygen atoms
mass (g) = mol x Ar Oxygen= 0.5 x 16 = 8 gram
7. How many atoms of aluminum hydroxide may be formed from 65 grams of sodium hydroxide?
Jawaban:
tidak tau tidak tau tidak tau
8. The strong bonds between the atoms are...... bonds
the strong bonds between the atoms are Ionic bonds
9. 1- 2. 3. 4. 8. 6. 7. 8. - g. 10. LI. 12. 13. 14. Is. Fill in the blanks with 'There is "or There are" ! ...... Some teachers in the theacher's Office many Students in the school Yard not a boy in the classrom ..... not any chidren at home a woman in the library? many tables in the livingroom? one Tele vision in my bedroom not many animals in the 200. an umbrella in Your bag? many books one the Shelves? a clock in this class? any fans in this class? not a laptop in this class? many vehicles in the gorage a head master in hir Office
Jawaban:
1.There are some teacher
2.There is not any children
Maaf Jika
10. what can be said about all the atoms in an elements
I can said
Atoms are a basic unit of matter, composed of atomic nuclei and the negatively charged cloud of electrons that surround it. The atomic nucleus consists of a positively charged proton, and neutrons are neutrally charged (except in the nucleus of Hydrogen-1 atom, which has no neutrons). The electrons in an atom are bound to the nucleus of an atom by an electromagnetic force. Such a set of atoms can bind to each other, and form a molecule. Atoms containing the same number of protons and electrons are neutral, while those containing different numbers of protons and electrons are positive or negative and are called ions. Atoms are grouped according to the number of protons and neutrons found in the nucleus of the atom. The number of protons on the atom determines the chemical element of the atom, and the number of neutrons determines the isotope of the element.
I apologize if i wrong.
11. Lithium padat ditempatkan dalam gas fluorin dan padatan putih dengan cepat terbentuk. Identifikasi jenis reaksi dan tulis persamaan keseimbangan dengan bentuknya. Pilih jawabanmu. 1 Sintesis: Li (s) + F (g) → LiF (s) 2 Pembakaran: 2 Li (s) + F2 (g) → 2 LiF (s) 3 Sintesis: 2 Li (s) + F2 (g) → 2 LiF (s) 4 Dekomposisi: 2 LiF (s) → 2 Li (s) + F2 (g) 5 Decomposition: 2 Li (s) + F2(g) → 2 LiF(s)
2 Li(s) + F2(g) => 2 LiF(s)
reaksi sintesis
jawabannya : 3. Sintesis: 2 Li (s) + F2 (g) → 2 LiF (s)
12. sulfur S is a nonmetallic that is present in coal is bumed, sulfur is converted to sulfur dioxide and eventually to sulfuric acid that gives rise to the acid rain phebomenoun. how many atoms are in 16,3 gram of S
Sulfur S is a nonmetallic that is present in coal is bumed, sulfur is converted to sulfur dioxide and eventually to sulfuric acid that gives rise to the acid rain phebomenoun. how many atoms are in 16,3 gram of S
Jawaban:
Jumlah mol S= [tex]\frac{massa}{mr}[/tex]
Jumlah mol S= [tex]\frac{16,3 gram}{32 g/mol}[/tex]
Jumlah mol S = 0,51 mol
Jumlah atom/Partikel S sebanyak = 0,51 mol x 6,02. 10²³ = 3,07.10²³
Jadi, jumlah atom s sebanyak 3,07.10²³ atom
Penjelasan:
Hubungan Jumlah Mol dengan Jumlah Partikel
Satu mol zat menyatakan jumlah partikel yang terkandung di dalamnya yang dinyatakan dalam satuan bilangan Avogadro = 6,02 x 1023 partikel
RUMUS KONSEP MOL
Dengan demikian, 1 mol zat mengandung 6,02 x 1023 partikel. Hubungan antara jumlah mol dan jumlah partikel dapat dirumuskan sebagai berikut:
Jumlah mol X (n) = jumlah partikel X/ L
atau
Jumlah partikel X = n x L
Bilangan Avogadro (L) ditemukan oleh Johann Loschmidt pada 1865. Nama Avogadro dipilih sebagai penghormatan kepada Avogadro karena beliau orang pertama yang mengusulkan perlunya satuan jumlah partikel. Adapun nama Loschmidt diabadikan sebagai simbol bilangan tersebut, L.
Nilai bilangan Avogadro adalah L = 6,02 x 1023
---------------------- #BelajarBersamaBrainly -----------------------------
Tetap semangat ya dalam belajar. Semoga jawaban ini bisa membantu. Untuk lebih memahami materi silahkan untuk mempelajari link dibawah ini :
https://brainly.co.id/tugas/1758264113. What number of atoms of nitrogen are present in 1.00 g ofeach of the compounds in Exercise 53
Jawaban:
1.00 g NH3 x (1 mole NH3 / 17.0 g NH3) x (6.023 x 10^23 molecules NH3 / 1 mole NH3) x (1 atom N / 1 molecule NH3) = 3.54 x 10^22 N atoms
14. what number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron
STOICHIOMETRY :
It is known that the mass of Fe (Iron) we have is 500.0g and if we open the periodic table, it is also told that the relative atomic mass (Ar) is equal to approximately 56. So in this case we can find the mole of the iron with :
[tex]n = \frac{m}{Ar/Mr}[/tex]
Where :
n = mole
Ar/Mr = Relative Atomic Mass / Relative Molecular Mass
m = mass
So..
[tex]n = \frac{500}{56} = 8.92 ≈ 9 moles[/tex]
So the answer is 8,92 moles of Fe or approximately 9 moles of Fe
Hope it helps, Shalom!
15. How many grams of calcium nitrate Ca(NO3)2 contains 24 grams of oxygen atoms? a. 164 g b. 96 g c. 62 g d. 50 g e. 41 g
Matter : Stoichiometry
O: 6×16/164 × M = 24 grams
M = 41 grams.
Answer is E.
#ChemistryIsFun
16. 6. How many moles of nitrogen atoms of combined with 8.60 mol of oxygen atoms in dinitrogen pentoxide, N205?
Jawaban:
Here you go, I hope it'll help ya
17. (+)my mother cooks in the kitchen (-) (?) 2.(+)you sleep the bedroom (-) (?) 3.(+li am a farmer (-) (?) 4.(+) they are student (-) (?)
+ My mother cooks in the kitchen
- My mother doesn't cook in the kitchen
? Does my mother cooks in the kitchen?
+ You are sleep in the bedroom
- You aren't sleep in the bedroom
? Are you sleep in the bedroom?
+ I am a farmer
- I'm not a farmer
? Am I a farmer?
+ They are a student
- They aren't a student
? Are they a student?
18. What can be said about all the atoms in an element?
apakah dapat berkata tentang atom dalam elemen
19. 2.Thow doyou spell Averagea. ai-ve-li-ar-li-di-iB. ei-vi-i-crae;-); iKoei-vei-r-a-lidiciD-i-vi-ei-arei-gjai
Jawaban:
B.
maaf kalo salah ;)
20. if there 60 molecules of oxygen and 124 atoms of hydrogen the amount of water molecules can be formed and the remaining atoms left from the reaction of Those atoms are
yesterday and tomorrow
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