How many moles are there in44g of CO2? How many molecus is this
1. 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.
2. 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
3. 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]
4. Write "How many or How much".1. ...jam is there in the bottle?2. ... water is there in the jug?3. ... erasers are there in this classroom?4. ... chairs are there in this room?5. ... rice is there in the bowl?Bantu jawab
Jawaban:
1. HOWMUCH jam is there in the bottle?
2. HOWMUCH water is there in the jug?
3. HOWMANY erasers are there in this classroom?
4. HOWMANY chairs are there in this room?
5. HOWMUCH rice is there in the bowl?
semoga membantu
Penjelasan:
1. how much jam is there in the bottle?
2. how much water is there in the jug?
3. how many erasers are there in this classroom?
4. how many chairs are there in this room?
5. how much rice is there in the bowl?
5. 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
6. a wave has a frequency of 2 hz. how many waves are produced in one minute
Jawaban:
120 hz sorry if I'm wrong hehehehehe
Jawaban:
120 waves
Penjelasan:
1 second = 2 waves
1 minute = 60 seconds = 120 waves
60 × 2 = 120 waves
7. 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
8. An apparel factory produces 69 shirts each day. Approximately how many shirts are produced in 42 days?
Jawaban:
2,898 shirts
Penjelasan dengan langkah-langkah:
...............
9. How many grams are in 1.2 x 10²⁴ molecules of water?
Answer
Mass of water = 36 grams
ExplanationMolecules of water is written in formula : H₂O,
to calculate the mass of the water, we should know about realtive molecular mass of water from periodic table :
Mr H₂O = 2 x Ar H + Ar O = 2 x 1 + 16 = 18 g/mole
From Avogadro number ==>
[tex]\boxed{mole\ of\ water\ = \frac{Molecules\ number\ of \ Water}{6,02\ .\ 10^{23} } }[/tex]
mole of water = 1.2 x 10²⁴ /(6.02 x 10²³) = 1.99 mole = 2 mole
Mass of water = mole of water x Mr water = 2 mole x 18 g/mole
= 36 grams of water
Learn Moreabout Concept of Mole : brainly.co.id/tugas/2623883
10. What are the products of the reaction between lithium and water ?
Jawaban:
Lithium reacts intensely with water, forming lithium hydroxide and highly flammable hydrogen. The colourless solution is highly alkalic. The exothermal reactions lasts longer than the reaction of sodium and water, which is directly below lithium in the periodic chart.
11. How many moles of sodium bromide can be formed from 1.55 moles of aluminum bromide?
Jawaban:
12020729629101
Penjelasan:
kalo salah maap
12. 1. A cubical bath has a side length of 90 cm. If the tub is filled with water, how many liters of water are in the tub?
Jawab:
729 liters
Penjelasan dengan langkah-langkah:
To find out how many liters of water are in the tub, we need to find the volume of the tub and then convert it to liters. Since the bathtub is a cube, the volume can be found by using the formula:
Volume = side length^3
In this case, the side length is 90 cm, so the volume is:
Volume = 90^3 cm^3
To convert cubic centimeters to liters, we divide the volume by 1000. So:
Volume = 90^3 cm^3 / 1000
= 729000 cm^3 / 1000
= 729 L
So the tub is filled with 729 liters of water.
Jawab:
Penjelasan dengan langkah-langkah:
To determine the number of liters of water in the tub, you need to calculate the volume of the tub and then convert it to liters.
The volume of a cube can be calculated by using the formula: V = s^3, where s is the length of one side of the cube.
So, for a cubical bath with a side length of 90cm, the volume of the tub is:
V = 90^3 cm^3
V = 729,000 cm^3
1 liter is equivalent to 1000 cm^3
So, to convert the volume of the tub to liters, you can divide the volume in cm^3 by 1000:
V(in liters) = 729,000 cm^3 / 1000
V(in liters) = 729 liters
Therefore, the tub contains 729 liters of water if it's filled.
13. 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
14. 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
15. Arti dari "this water mammals are able to fascinate us in many different"
hewan mamalia air ini bisa menarik perhatian kita di banyak hal
16. How many bottles of pure water are there
berapa banyak botol air murni disana?
maaf kalo salahAda berapa botol air murni disana?
Semoga membantu
17. 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 .
18. How many grams in 5,6 liter of water in stp ? (Ar. H=1 O=16)
Penjelasan:
n=mol
Water=H2O
V=Vstp × n
5,6=22,4 × n
n=0,25 mol
n=mass/Mr
0,25=mass/18
mass=4,5 grams
19. the correct equation of electrolyte ionization reaction in water is
the correct equation if electrolyte ionization reaction in water is H2 + O2 = H2O.
20. acetic acie has Ka= 10^-5 . If 0,2 moles of this acid is mixed 0,02moles of sodium acetate in one liter of water, a buffer is formed. Calculate pH of this solution .
pH = 4
Solution :
Determining the concentration of acid
[CH3COOH] = 0,2mole/1L = 0,2M
Determining the concentration of conjugate base
[CH3COO-] = 0,02mole/1L = 0,02
Determining the concentration of H+ and pH
[H+] = Ka × [CH3COOH]/[CH3COO-]
[H+] = 10^-5 × 0,2M/0,02M = 10^-4
so :
pH = -log [H+]
pH = -log 10^-4
pH = 4
This, pH of the Solution is 4
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