The mass of a carbon atom is 2*10^-27g How many carbon atoms are there in 6g of carbon
1. 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.
2. Ron divided 207 kg of rice into 3 bags, A, B and C, the ratio of the mass of rice in Bag A to the mass of rice in Bag B was 1 : 2. The ratio of the mass of rice in Bag B to the mass of rice in Bag C was 4 : 3. a. Find the ratio of the mass of rice in Bag A to the mass of rice in Bag B to the mass of rice in Bag C. b. Find the mass of rice in Bag A dengan cara ya!!
Jawaban:
a. 2:4:3
b. 46 kg
Penjelasan:
a. A : B = 1 : 2
B : C = 4 : 3
multiply either equation so that both equations have the same value for B. i choose to multiply the first equation by 2. so,
A : B = 2 : 4
since both ratios have the same value for B, we can merge them together.
A : B : C = 2 : 4 : 3
b. mass A = A/total mass x total mass
since we have the ratio for A and the total mass = 2:(2+4+3),
mass A = 2/9 x 207
= 2 x 23
= 46 kg
3. The mass of a tin is 200 g. Danang puts 700 g of biscuits into it. What is the total mass of the tin of biscuits?.......Give your answer in kilograms!
Jawab:
0,9 kg
Penjelasan dengan langkah-langkah:
200 g + 700 g = 900 g = 0,9 kg
4. a sample of 0.3220 g of an ionic compound containing the bromide ion (Br2) is dissolfed in water and treated with an excess of AgNO3.if the mass of the AgBr precipitate that froms is 0.6964 g. what is the percent by mass of Br in the original compound ?
Jawaban:
aku juga mau tanya sama kamu gimana sih bikin pertanyaan lagi aku ngk bisa yah
5. How many percent of potassium 30mg in the label
Jawaban:
how many prencent of potassium 30 mg in the lebel
6. Which definition of concentration given below best describes the concept expressed in “in a solution of 10g of salt and 70ml of water, the concentration of the solution by percent mass is 12,5%2?” jawabannya 1.The amount of water in the solution 2 A word denoting 70g 3 The mass of the solution 4 The amount of a component (solute) present. 5 The amount of solution
Jumlah 1. air dalam larutan 2 A 70g kata yang menunjukkan 3 Massa solusi 4 Jumlah komponen ( zat terlarut ) hadir . 5 Jumlah solusi
7. The increase of carbon dioxide in theatmwosphere.
Jawaban:
2019). Global atmospheric carbon dioxide was 409.8 ± 0.1 ppm in 2019, a new record high. ... The annual rate of increase in atmospheric carbon dioxide over the past 60 years is about 100 times faster than previous natural increases, such as those that occurred at the end of the last ice age 11,000-17,000 years
maaf kalo salah jawaban nya ^_^
8. Mrs Salmah put 1 kg of fruits, 1,25 kg of chicken and 2,8 kg of fish into a basket. If total mass of the basket and the food is 5,73kg, find the mass of the basket .Give your answer in gram.
Jawaban:
5730 gr.
Penjelasan dengan langkah-langkah:
1kg = 1000gram
5,73kg = 5730 gram.
9. what is the source of bacteria in the carbon cycle?
Jawaban:
Fossil fuels kek nya bahasa Inggris soalnya
10. THE TOTAL MASS OF MACHINE A AND MACHINE B IS 80.5 KG. THE MASS OF MACHINE B IS 4 TIMES THE MASS OF MACHINE A. WHAT IS THE MASS OF MACHINE B? EXPRESS YOUR ANSWER IN GRAMS!
A + B = 80,5
A + 4A = 80,5
5A = 80,5
A = 80,5 : 5 = 16,1
B = 4A = 4(16,1) = 64,4 KG = 64.400 GR
11. Which definition of concentration given below best describes the concept expressed in “in a solution of 10g of salt and 70ml of water, the concentration of the solution by percent mass is 12,5%2?”
jawabannya
1.The amount of water in the solution
2 A word denoting 70g
3 The mass of the solution
4 The amount of a component (solute) present.
5 The amount of solution
Terjemahan :
Jumlah 1. air dalam larutan 2 A 70g kata yang menunjukkan 3 Massa solusi 4 Jumlah komponen ( zat terlarut ) hadir . 5 Jumlah solusi
12. what is the role of bacteria in the carbon cycle?
Jawaban:
Bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply by C02 available for photosynthesis is replenished. Thus, they act as decomposers in the carbon cycle.
Penjelasan:
#maaf kalau salah13. the mass of a bag of nuts is 215 g What is the mass of 10 bags of nuts in kilograms, kg?
[tex] \frac{10 \: bags}{1 \: bag} \times 215 \: g = 2150 \: g = 2.15 \: kg[/tex]
14. A 2.00-g sample of a large biomolecule was dissolved in 15.0 g carbon tetrachloride. The boiling point of this solution was determined to be 77.85 oC. Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling-point constant is 5.03oC .kg/mol, and the boiling point of pure carbon tetrachloride is 76.50oC
we will use boiling point formula:
ΔT = i Kb m
when ΔT is the temperature change from the pure solvent's boiling point to the boiling point of the solution = 77.85 °C - 76.5 °C = 1.35
and Kb is the boiling point constant =5.03
and m = molality
i = vant's Hoff factor
so by substitution, we can get the molality:
1.35 = 1 * 5.03 * m
∴ m = 0.27
when molality = moles / mass Kg
0.27 = moles / 0.015Kg
∴ moles = 0.00405 moles
∴ The molar mass = mass / moles
= 2 g / 0.00405 moles
= 493.8 g /mol
15. what is the role of bacteria in the carbon cycle?
Jawaban:
Bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply by C02 available for photosynthesis is replenished. Thus, they act as decomposers in the carbon cycle
Jawaban:
#conversion of carbon dioxide to methane
# for the process of biodegradation and decomposition under aerobic and anaerobic conditions
Penjelasan:
maaf jika salah
16. 2. The mass of a tray and 2 boxes is 2 kg 570 g. the mass of the same trayand 7 similar boxes is 6 kg 320 g.a. What is the mass of a box?b. What is the mass of the tray? Give your answer in kg and g.a. Q:öb.0a
Jawab:
Penjelasan dengan langkah-langkah:
Attached
17. The mass of a blue vase is 2 times the mass of a red vase. The mass of a gold Vase is 4 times the mass of the blue yase. If the difference in masses between the gold vase and the red vase is 14 kg, find the mass of the blue vase.
Blue vase (B), red vase (R) and gold vase (G)
The mass of a blue vase is 2 times the mass of a red vase.
B = 2R
The mass of a gold Vase is 4 times the mass of the blue vase.
G = 4B
If the difference in masses between the gold vase and the red vase is 14 kg,
G - R = 14
Find the mass of the blue vase.
B = ...
Answer:
B = 2R
R = B/2
G = 4B
G = 4(2R)
= 8R = 8(B/2)
= 4B
G - R = 14
4B - B/2 = 14
Multiply both sides by 2
2(4B - B/2) = 2(14)
8B - B = 28
7B = 28
B = 4
The mass of the blue vase is 4 kg.
18. The mass of a sack of potatoes is 5 kilograms 305 grams. What is the mass of the sack of potatoes in grams?
Jawaban:
jika Anda ingin bertanya itu deng 234
19. a sample of 0.3220 g of an ionic compound containing the bromide ion (Br2) is dissolfed in water and treated with an excess of AgNO3.if the mass of the AgBr precipitate that froms is 0.6964 g. what is the percent by mass of Br in the original compound ?
Jawaban:
gak tau p
Penjelasan:
ga bisa basa inggris
20. The meaning of the term Blue Carbon Sink is ... . (A) the process of carbon uptake by marine organisms autotrophs (B) the process of petroleum formation of carbon deposits (C) the process of sinking carbon in the form of lime in the sea (D) the process of dissolution of lime in the ocean at deep of 5000 meters (E) the process of carbon sequestration by forests in the taiga
Jawaban:
E) the process of carbon sequestration by forests in the taiga
Penjelasan:
because carbon of E) the process of carbon sequestration by forests in the taiga
0 komentar:
Posting Komentar