The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide (NO2) is a key step in photochemical smog formation. How many grams of O2 are needed to produce 2.21 g of NO2?
1. The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide (NO2) is a key step in photochemical smog formation. How many grams of O2 are needed to produce 2.21 g of NO2?
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2. 21. What is the result of the burning of the coal and oil? A. Ammonium D. Sulfur dioxide B. Nitric acid E. Airborne ammonia C. Sulphuric acid
Jawaban:
21. What is the result of the burning of the coal and oil? A. Ammonium D. Sulfur dioxide B. Nitric acid E. Airborne ammonia C. Sulphuric acid
Penjelasan:
Jawaban dicetak tebal D. Sulfur Dioxide merupakan hasil yang didapatkan dari proses pembakaran batubara dan bahan bakar kendaraan yang tentunya juga menciptakan polusi udara dan pemanasan global (Global Warming).
Semoga membantu ya.
3. 0.08 moles of sulfuric acid in 2 litres of solution has a Ph?
n (moles) = M / V
M (concentracion) = n x V = 0,08 moles x 2 Litres = 0,16 M
Since H₂SO₄ is strong acid, we must use this formula:
[H⁺] = acid valence x Concentration
[H⁺] = 2 x 0,16 M
[H⁺]= 0,32 M = 32 x 10⁻² M
pH = - log [H⁺]
pH = - log (32 x 10⁻² M)
pH = 2 - log 32
~apply some logarithm properties~
pH = 2 - 5 log 2
pH = 0,5
That gives us pH of said acid is 2-5log2.
I hope this helps~
4. what is the function of nitric acid?
Jawaban:
Digunakan sebagai bahan baku pembuatan pupuk nitrogen Digunakan sebagai bahan baku pembuatan polyamides, yaitu bahan baku pembuat karpet dan pakaian Digunakan sebagai bahan pelarut sebagian besar logam, dan unsur kimia non logam terjemahan nya:Used as raw material for making nitrogen fertilizers It is used as a raw material for the manufacture of polyamides, which are raw materials for making carpets and clothes Used as a solvent for most of the loPenjelasan:
semoga membantu5. what do you think would happen if a drop of blood was added to a solution of hidrogen peroxide
when kali bukan would
6. The depletion of ozone (03) in the stratosphere has been a matter ofgreat concern among Scientists in recent years. It is believed thato2one can react with nitric Oxide (NO) that is discharged fromthe high altitude jet plane. The reation is03 + NO O2 + NO2IF 0.790 9 of O3 reacts with 0.670 9 OF Mo, how many grams ofHO2 will be produced? which compound is the limitina reagent?Calculate the number of moles of the excess reagent remainingat the end of the reaction ?
Jawaban:
Menipisnya ozon (03) di stratosfer telah menjadi masalah
perhatian besar di antara Ilmuwan dalam beberapa tahun terakhir. Diyakini itu
o2one dapat bereaksi dengan nitric Oxide (NO) yang dilepaskan
pesawat jet ketinggian tinggi. Reasinya adalah
03 + TIDAK ADA O2 + NO2
JIKA 0,790 9 O3 bereaksi dengan 0,670 9 OF Mo, berapa gram
HO2 akan diproduksi? senyawa apa yang merupakan reagen limitina?
Hitung jumlah mol sisa reagen berlebih
di akhir reaksi?
Penjelasan:
Kalian punya Jawaban lanjut Dari aku
7. aku ada pr nih.. suruh buat sample of memo ..sample of memo itu gimana ?
kaka disuruh membuat salah satu contoh memo
8. How many moles of sodium bromide can be formed from 1.55 moles of aluminum bromide?
Jawaban:
12020729629101
Penjelasan:
kalo salah maap
9. Fungsi nitric oxide (oksida nitrat) adalahcepat oiii mau dikumpulkan
Jawaban:
gas yang diberikan bersama alat bantu napas untuk mengatasi gagal napas pada bayi baru lahir, terutama yang terlahir prematur. Nitrogen oksida berfungsi melebarkan pembuluh darah di paru-paru, sehingga bayi yang baru lahir bisa mendapat oksigen lebih banyak.
Penjelasan:
10. 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
11. What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?
Penjelasan:
dik : n KCl = 4 mol
v = 2,5 L
dit : M = ?
jb :
M = n / v
= 4 mol / 2,5 L
= 1,6 mol/L
semoga membantu :)
12. Find the number of moles of the indicated species: a) 333 mg of Na2B4O7.10H20
Jawaban:
Penjelasan:
[tex]\text{Na}_2\text{B}_4\text{O}_7.10\text{H}_2\text{O}[/tex]
Mr = 2Na + 4B + 8O + 20H
Mr = 2(23) + 4(11) + 17(16) + 20(1)
Mr = 46 + 44 + 272+ 20
Mr = 382
[tex]n = \frac{m}{Mm}\\n = \frac{333}{382}\\n = 0,87 \times 10^-3 \ \text{mol}[/tex]
13. 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
14. 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]
15. 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
16. 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
17. 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
18. 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
19. 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 .
20. 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
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