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?
1. 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
2. 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.
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. How many moles of sodium bromide can be formed from 1.55 moles of aluminum bromide?
Jawaban:
12020729629101
Penjelasan:
kalo salah maap
5. how many kind of tense are used in song 93 million by jason mraz ?
Jawaban:
Tenses :
1. 'Cause here it comes -> simple present tense
2. She told me, "Son in life you're gonna go far, If you do it right you'll love where you are. -> simple past tense
3. He told me, "Son sometimes it may seem dark, -> simple past tense
4. You will always get back home -> simple future tense
5. If you do it right you'll love where you are -> simple future tense
6. It's a light, a beautiful light, -> simple present tense
Sorry kalo salah, Masih belajar jg gw.
6. 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
7. A utility bill showed that 700 littres of water was used by a family of 3 adults in a week. Each member of the family used the same amount of water each day. How many litters of water were used by each person in a day? .... litres *
Jawaban:
Banyak air yang digunakan oleh setiap anggota keluarga per harinya adalah [tex]\[33\frac{1}{3}{\text{ liter}}\][/tex]. Dalam hal ini digunakan konsep pembagian. Kamu perlu menentukan terlebih dahulu banyak air yang digunakan oleh satu keluarga selama satu hari.
Penjelasan:
Oleh karena 700 liter air digunakan selama 1 minggu oleh satu keluarga, maka banyak air yang digunakan selama 1 hari adalah
[tex]\[700{\text{ liter}}/{\text{minggu = }}700{\text{ liter}}/{\text{7 hari = }}100{\text{ liter}}/{\text{hari}}\][/tex]
Catatan: 1 minggu = 7 hari.
Oleh karena ada 3 orang dalam satu keluarga dan setiap anggota keluarga menggunakan banyak air yang sama, maka banyak air yang digunakan oleh setiap anggota per harinya adalah [tex]\[\frac{{100{\text{ liter}}}}{3} = 33\frac{1}{3}{\text{ liter}}\][/tex].
Pelajari lebih lanjut materi tentang pemodelan matematika yang menggunakan konsep pembagian pada https://brainly.co.id/tugas/42698038.
#BelajarBersamaBrainly
8. A tub had 84 liters of water. 2/5 of the water was used to wash a car how many liters of the water were used?
Jawaban:
[tex]84 \times \frac{2}{5} \\ \frac{84 \times 2}{5} \\ \frac{168}{5} \\ 33.6 \: l[/tex]
9. 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
10. A 1.000 mol sample of propane, a gas used for cooking in many rural areas, was placed in a bomb calorimeter with excess oxygen and ignited. The initial temperature of the calorimeter was 25.000 °C and its total heat capacity was 97.13 kJ °C-1. The reaction raised the temperature of the calorimeter to 27.282 °C. (a) Write the balanced chemical equation for the reaction in the calorimeter. (b) How many joules were liberated in this reaction? (c) What is the heat of reaction of propane with oxygen expressed in kilojoules per mole of C3H8 burned?
Kimia Kelas XI
Termokimia
Mohon koreksinya ya! Semoga membantu :) Tetap semangatt ^^
11. 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 .
12. Teachers divided students into groups of 3. Each group of 3 wrote a report that had 9 pictures in it. The students used 585 pictures altogether. How many students were there in all?
Jawab :
Each group of three created (or used) 9 pictures, so that means three pictures per students. Dividing 585 students by 3 pictures per student means that three are 585/3 = 195 students.
Semoga membantu dan bermanfaat :)
Jadikan jawaban terbaik yah….
#BelajarBersamaBrainly
13. Many parts of Jakarta were flooded that's.... People are used to littering in the river
Many parts of Jakarta were flooded , that's BECAUSE people are used to littering in the river
14. how many structure and language features used in caption ?
future 16 , structure 22
semoga bermanfaat
15. How many language feature used in report text?
Jawaban:
Language Feature of Report text:
– Use of general nouns, eg hunting dogs, rather than particular nouns, eg our dog
– Use of relating verbs to describe features, eg Molecules are tiny particles
– Some use of action verbs when describing behaviour, eg Emus cannot fly
– Use of timeless present tense to indicate usualness, eg Tropical cyclones always begin over the sea
– Use of technical terms, eg Isobars are lines drawn on a weather map
– Use of paragraphs with topic sentences to organise bundles of information; repeated naming of the topic as the beginning focus of the clause.
TERJEMAHAN:Fitur Bahasa teks Laporan:
- Penggunaan kata benda umum, misalnya anj!ng pemburu, bukan kata benda tertentu, misalnya anj!ng kita
- Penggunaan kata kerja terkait untuk menggambarkan fitur, misalnya Molekul adalah partikel kecil
- Beberapa penggunaan kata kerja tindakan saat menggambarkan perilaku, misalnya Emus tidak bisa terbang
- Penggunaan present present tense untuk mengindikasikan keadaan biasa, misalnya siklon tropis selalu dimulai di atas laut
- Penggunaan istilah teknis, misalnya Isobars adalah garis yang digambar pada peta cuaca
- Penggunaan paragraf dengan kalimat topik untuk mengatur kumpulan informasi; penamaan topik yang diulang sebagai fokus awal klausa.
16. How many kinds of tenses used in liric that's what friends are for? Mention them!
There are 4 tenses used in the song. They are simple past, simple past future, simple present, and simple future.
17. mohon bantuannyawhen 8.0 g of metal (M) was oxidized in the oxygen atmosphere 10 g of MO was obtained owing the following reaction. Answer the following questions2M + O₂ ⇒ 2MO1. How many liter of O₂ were needed in this reaction? answer the volume at the standard state2. Calculate the weight percentage of M in MO3. Calculate the atomic weight of M
2M + O₂ ⇒ 2MO
8 g 2 g 10 g
0,125 mol 0,0625 mol
1) O₂ Volume = [tex] \frac{gram}{Mr}.22,4 = \frac{2}{32}.22,4= 1,4 [/tex] liter
3) mol = [tex] \frac{gram}{Ar} [/tex]
0,125 = [tex] \frac{8}{Ar} [/tex]
Ar M = [tex] \frac{8}{0,125} = 64 [/tex]
2) percentage M in MO
[tex] \frac{Ar M}{Mr MO} [/tex] x 100%
[tex] \frac{64}{80} [/tex] x 100% = 80%
18. bantu jawab, sebisa kalianHow would this change in shape affect the rate of reaction, if the shapes were inczad thereacted with acid?
Jawaban:
translate:"Bagaimana perubahan bentuk ini mempengaruhi laju reaksi, jika bentuk-bentuk itu termasuk bereaksi dengan asam?"
Semoga membantu jgn lupa Like ya
Khasamida
19. 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
20. 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
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