6. How many moles of nitrogen atoms of combined with 8.60 mol of oxygen atoms in dinitrogen pentoxide, N205?
1. 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
2. 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
3. How many moles of sodium bromide can be formed from 1.55 moles of aluminum bromide?
Jawaban:
12020729629101
Penjelasan:
kalo salah maap
4. How many moles are there in44g of CO2? How many molecus is this
simply the molar mass of co2 is 44g/mol. It is calculated as below;
molar mass of c = 12 g/mol
molar mass of o= 16 g/mol
molar mass of co2= molar mass of c+ 2(molar mass of o)= (12+16+16)g/mol=44g/mol
number of moles = the given mass / molar mass of co2
number of moles= 44 g / 44 g/mol =1 mol
therfore 44g of co2 have 1 mole of co2 in it.
5. Two moles of aluminum consist of...... atoms (L = 6.02 x 10^23)
x = n x L
x = 2 x 6,02 x 10^23
x = 12,02 x 10^23
x = 1,202 x 10^24
6. how many moles of water is 5.87 x 10 22 molecules ?
Saya jawabnya pakai bahasa indonesia ya :p
Diketahui : Jumlah partikel : 5.87 x [tex]10^{22}[/tex]
Jumlah partikel = mol x L (bilangan avogadro)
5.87 x [tex]10^{22}[/tex] = mol x 6.02 x [tex]10^{23}[/tex]
mol = 0.097 mol
Semoga membantu :D
7. 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.
8. How many molecules of CO2 are the in 4.56 moles of CO2 ?
° STOIKIOMETRI °
Given
n = 4,56 moleL = 6,02 • 10²³Ask
X = ?Answer
To answer this question, we can use mole concept.
[tex] \Boxed {X = n \cdot L} [/tex]
So the answer
[tex] X = n \cdot L \\ X = 4,56 \cdot 6,02 \cdot 10^{23} \\ X \approx 2,75 \cdot 10^{23} [/tex]
9. 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!
10. How many amounts of sodium mentioned in the text
Jawaban: Berapa banyak kandungan sodium yang disebutkan dalam text
Penjelasan:
-
11. Two moles of aluminum consist of...... atoms (L = 6.02 x 10^23)
x = n x L
x = 2 x 6,02 x 10^23
x = 12,02 x 10^23
x = 1,202 x 10^24
12. Consider the reaction for the commercial preparation of ammonia ; synthesis of ammonia (NH3) from the reaction between nitrogen and hydrogen. a) How many moles of hydrogen are needed to prepare 312 moles of ammonia? b) How many grams of hydrogen is this?
11010292928822
Penjelasan:
soriy ttayqyquq
13. 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
14. How many milligrams of sodium in the label?
Jawaban: mana label nya???
Penjelasan:
Klo nanya arti itu artinya "berapa miligram garam yang ada di label"
15. How many molecules of CO2 are the in 4.56 moles of CO2 ?
Jawaban:
Thus, the number of molecules of carbon dioxide is 6.23×1022 molecules 6.23 × 10 22 molecules .
16. How many atoms of aluminum hydroxide may be formed from 65 grams of sodium hydroxide?
Jawaban:
tidak tau tidak tau tidak tau
17. 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
18. For the given reaction C5H12 + 8 O2 → 5 CO2 + 6 H2O, If the reactants C5H12 & O2 are having 2 moles an 8 moles of initial feed respectively. How many moles of C5H12 are there when the reaction completes?
Jawaban:
1 mol C5H12
Penjelasan:
pakai cara yang di gambar ya
semoga bermanfaat
19. 3. How many mg of sodium are in this product?....
Jawaban:
which product do you mean? we see no picture
20. Two moles of aluminum consist of...... atoms (L = 6.02 x 10^23)
x = n x L
x = 2 x 6,02 x 10^23
x = 12,02 x 10^23
x = 1,202 x 10^24
0 Comments:
Post a Comment