How many moles are in a sample containing 2.71 x 10^24 atoms of iron?

How many moles are in a sample containing 2.71 x 10^24 atoms of iron?
by

1 Answer

Answer :

two or three
by

Related questions

For synthesis of prostaglandins, the essential fatty acids give rise to a fatty acid containing (A) 12 carbon atoms (B) 16 carbon atoms (C) 20 carbon atoms (D) 24 carbon atoms

Description : For synthesis of prostaglandins, the essential fatty acids give rise to a fatty acid containing (A) 12 carbon atoms (B) 16 carbon atoms (C) 20 carbon atoms (D) 24 carbon atoms

Last Answer : Answer : C

a gas has a pressure of 766.7 torr at a temperature of 10.0°C. the sample contains 2.35 moles of xenon. what is the volume of the gas in liters?

Description : a gas has a pressure of 766.7 torr at a temperature of 10.0°C. the sample contains 2.35 moles of xenon. what is the volume of the gas in liters?

Last Answer : Using PV=nRT, 10.0ºC = 283.15ºK, R = 62.36 L torr/mol KV= (nRT)/PV = (2.35m*(62.36 L torr/mol K)*283.15ºK)/766.7 TorrV = 54.12 L

What volume in mL of a 0.10 M NaOH solution would be required to neutralize 0.0091 moles of CH3COOH in a given vinegar sample?

Description : What volume in mL of a 0.10 M NaOH solution would be required to neutralize 0.0091 moles of CH3COOH in a given vinegar sample?

Last Answer : The volume of NaOH is 99 mL.

A sample of x litres from a container having a 60 litre mixture of milk and water containing milk and water in the ratio of 2 : 3 is replaced with pure milk so that the container will have milk and water in equal proportions. What is the value of x? a) 6 litres b) 10 litres c) 30 litres d) None of these

Description : A sample of x litres from a container having a 60 litre mixture of milk and water containing milk and water in the ratio of 2 : 3 is replaced with pure milk so that the container will have milk and water in equal ... . What is the value of x? a) 6 litres b) 10 litres c) 30 litres d) None of these

Last Answer : C Another way for solving this sum is by choice The mixture of 60 litres has in it 24 litres of milk and 36 litres of water. (2 : 3 :: milk water) When you remove x litres from it, you ... have 30 litres of milk and 30 litres of water - i.e. milk and water are in equal proportion.

How many moles of aluminum oxide are present in a sample having a mass of 178.43g?

Description : How many moles of aluminum oxide are present in a sample having a mass of 178.43g?

Last Answer : The number of moles is 6,631.

How many moles of carbon monoxide are in 350 g sample?

Description : How many moles of carbon monoxide are in 350 g sample?

Last Answer : 350 g sample of CO contain 12,49 moles.

the hardness of a water sample (in terms of Equivalents of `CaCO_(3)`) containing `10^(-3)MCaSO_(4)` Is : (Molar mass of `CaSO_(4)=1365h mol^(-1)`)

Description : the hardness of a water sample (in terms of Equivalents of `CaCO_(3)`) containing `10^(-3)MCaSO_(4)` Is : (Molar mass of `CaSO_(4)=1365h mol^(-1)`)

Last Answer : the hardness of a water sample (in terms of Equivalents of `CaCO_(3)`) containing `10^(-3)MCaSO_(4)` Is : ( ... 10 ppm B. 50 ppm C. 90 ppm D. 100 ppm

When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is formed. Mole ratio of `PCl_(3)

Description : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is formed. Mole ratio of `PCl_(3)

Last Answer : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is ... : 1` C. `1 : 3` D. `2 : 1`

For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = - 60000 J . mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be (A) 30,000 J (B) 60,000 J (C) 90,000 J (D) 2,40,000 J

Description : For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = - 60000 J . mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved ... will be (A) 30,000 J (B) 60,000 J (C) 90,000 J (D) 2,40,000 J

Last Answer : (C) 90,000 J

The ratio of two specific heats of air is equal to  (a) 0.17  (b) 0.24  (c) 0.1  (d) 1.41  (e) 2.71.

Description : The ratio of two specific heats of air is equal to  (a) 0.17  (b) 0.24  (c) 0.1  (d) 1.41  (e) 2.71.

Last Answer : Answer : d

1275.42 + 8624.6 – 894.54 – 24.71 = ? a) 8620.27 b) 8738.57 c) 8890.93 d) 8980.77 e) 9012.17

Description : 1275.42 + 8624.6 – 894.54 – 24.71 = ? a) 8620.27 b) 8738.57 c) 8890.93 d) 8980.77 e) 9012.17

Last Answer : d) 8980.77

How do you turn atoms into moles?

Description : How do you turn atoms into moles?

Last Answer : One mole has 6,022 140 857 atoms (Avogadro number).

How many atoms of potassium make up 3 moles?

Description : How many atoms of potassium make up 3 moles?

Last Answer : The number of atoms is 18,066422571.10e23.

How many atoms of LiBr would you have if you start with 1.25 moles What is the answer and how did you get it?

Description : How many atoms of LiBr would you have if you start with 1.25 moles What is the answer and how did you get it?

Last Answer : Not atoms of LiBr; formula units is correct.1 mol = 6,022 140 857.10e23 (molecules, atoms, ions); this is the Avogadro number.6,022 140 857.10e23 x 1,25 = 7,52767607125.10e23 formula units of LiBr

How many moles of C3H8 contain 4.95 1024 hydrogen atoms?

Description : How many moles of C3H8 contain 4.95 1024 hydrogen atoms?

Last Answer : What is the answer ?

How many moles on atoms are contained in 4.5X10 to the power of 22 atoms Cu?

Description : How many moles on atoms are contained in 4.5X10 to the power of 22 atoms Cu?

Last Answer : What is the answer ?

How many atoms are found in 4.75 moles of Fe?

Description : How many atoms are found in 4.75 moles of Fe?

Last Answer : 4,75 moles of iron contain 28,60516907075.1oe23 atoms.

How many atoms are in three moles of lithium?

Description : How many atoms are in three moles of lithium?

Last Answer : 3 moles Li x 6.02x10^23 atoms/mole = 1.8x10^24 atoms

How many atoms are found in 4.75 moles of Fe?

Description : How many atoms are found in 4.75 moles of Fe?

Last Answer : 4,75 moles of iron contain 28,60516907075.1oe23 atoms.

If you have 1.20 and times 1024 atoms of copper how many moles of copper do you have?

Description : If you have 1.20 and times 1024 atoms of copper how many moles of copper do you have?

Last Answer : 1.20x10^24 atoms x 1 mole/6.02x10^23 atoms = 1.99 moles

How many moles of atoms are in .515 g of carbon?

Description : How many moles of atoms are in .515 g of carbon?

Last Answer : 0,515 g of carbon is equal to 0,043 moles.

How many atoms are in 5.00x10^-2 moles of krypton?

Description : How many atoms are in 5.00x10^-2 moles of krypton?

Last Answer : atoms are in 5.00x10^-2 moles of krypton is 1013.9558

Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?

Description : Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons

Description : The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons

Last Answer : d. Molecular Weight; Daltons

Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons

Description : Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons

Last Answer : ANSWER: Z -- HAS UNPAIRED ELECTRONS

A 2.5 gm impure sample containing weak monoacidic base (Mol. wt. = 45) is dissolved in 100 ml water and titrated with 0.5 M HCI when of `((1)/(5))^(th

Description : A 2.5 gm impure sample containing weak monoacidic base (Mol. wt. = 45) is dissolved in 100 ml water and titrated with 0.5 M HCI when of `((1)/(5))^(th

Last Answer : A 2.5 gm impure sample containing weak monoacidic base (Mol. wt. = 45) is dissolved in 100 ml ... D. Weight percentage of base in given sample is 80%.

A 0.2 g sample containing copper (II) was analysed iodometrically, where copper (II) is reduced to copper (I) by iodide ions. `2Cu^(2+) +4I^(-)rarr2 C

Description : A 0.2 g sample containing copper (II) was analysed iodometrically, where copper (II) is reduced to copper (I) by iodide ions. `2Cu^(2+) +4I^(-)rarr2 C

Last Answer : A 0.2 g sample containing copper (II) was analysed iodometrically, where copper (II) is reduced to copper (I) by ... ` B. `63.5%` C. `53%` D. `37%`

`C^(14)` has a half`-` life of 5760 years. `100mg` of the sample containing `.^(14)C` is reduced to `25mg` in a)11520years b)2880years c)1440years d)1

Description : `C^(14)` has a half`-` life of 5760 years. `100mg` of the sample containing `.^(14)C` is reduced to `25mg` in a)11520years b)2880years c)1440years d)1

Last Answer : `C^(14)` has a half`-` life of 5760 years. `100mg` of the sample containing `.^(14)C` is ... 11520 years B. 2880 years C. 1440 years D. 17280 years

If a manufacturer is trying to put together a sample collection of her product and order is not important how many combinations can be created with 15 items that will be placed in packages containing?

Description : If a manufacturer is trying to put together a sample collection of her product and order is not important how many combinations can be created with 15 items that will be placed in packages containing?

Last Answer : Need answer

A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60 (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02 (C) CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Description : A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6 ... 96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Last Answer : (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02

You are given a sample of soil containing coarse grains to determine its water content, you will use (A) Pycnometer (B) Oven-drying method (C) Calcium carbide method (D) Alcohol method

Description : You are given a sample of soil containing coarse grains to determine its water content, you will use (A) Pycnometer (B) Oven-drying method (C) Calcium carbide method (D) Alcohol method

Last Answer : Answer: Option A

Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. S. mutans concentration of 105 organism/ml C. A plaque sample containing 5% S. mutans D. A lactobacilli concentration of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence

Description : Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this? A. Stimulated salivary secretion rate of 1.5ml/min B. ... of 105 organism/ml E. Salivary buffering PH 5.5 > 100000 CFU/ml high caries incidence

Last Answer : E. Salivary buffering PH 5.5

What the number of moles in 24 g of oxygen gas?

Description : What the number of moles in 24 g of oxygen gas?

Last Answer : 24 g of oxygen gas (O2) is equal to o.75 moles.

What is the number of moles in 24 g of oxygen gas?

Description : What is the number of moles in 24 g of oxygen gas?

Last Answer : The number of moles in 24 g of oxygen gas (O2) is 0,75.

Monochromatic radiation of wavelength `lambda` is incident on a hydrogen sample in ground state. hydrogen atoms absorb a fraction of light and subsequ

Description : Monochromatic radiation of wavelength `lambda` is incident on a hydrogen sample in ground state. hydrogen atoms absorb a fraction of light and subsequ

Last Answer : Monochromatic radiation of wavelength `lambda` is incident on a hydrogen sample in ground state. ... different wavelength .Find the value of `lambda`

A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of atomic hydrogen gas. Assuming that the atoms are

Description : A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of atomic hydrogen gas. Assuming that the atoms are

Last Answer : A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of ... being observed by on atom in the ground state

If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 gmol how many sodium atoms are there in the sample?

Description : If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 gmol how many sodium atoms are there in the sample?

Last Answer : Need answer

How many C-13 atoms are present on average in a 1.8000 and times104-atom sample of carbon?

Description : How many C-13 atoms are present on average in a 1.8000 and times104-atom sample of carbon?

Last Answer : Feel Free to Answer

What is the total number of atoms contained in a 1.00 mole sample of helium?

Description : What is the total number of atoms contained in a 1.00 mole sample of helium?

Last Answer : The total number of atoms contained in a 1,00 mole sample ofhelium is 6,022 140 857.10e23.

How many C atoms are present in the sample of C3H8 with mass 5.31 g?

Description : How many C atoms are present in the sample of C3H8 with mass 5.31 g?

Last Answer : Need answer

What is the total number of atoms contained in a 1.00 mole sample of helium?

Description : What is the total number of atoms contained in a 1.00 mole sample of helium?

Last Answer : The total number of atoms contained in a 1,00 mole sample ofhelium is 6,022 140 857.10e23.

What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Description : What name is given to the time taken for half the atoms in a sample of a radioactive isotope to decay?

Last Answer : Half-life

The fatty acids containing even number and odd number of carbon atoms as well as the unsaturated fatty acids are oxidized by (A) α-oxidation (B) β-oxidation (C) ω-oxidation (D) All of these

Description : The fatty acids containing even number and odd number of carbon atoms as well as the unsaturated fatty acids are oxidized by (A) α-oxidation (B) β-oxidation (C) ω-oxidation (D) All of these

Last Answer : Answer : B

Prostaglandins: a. contains 20 carbon atoms b. are unsaturated fatty acids containing a cyclopentane ring c. the different types of prostaglandins are classified according to the configuration of the cyclopentane ring d. all above

Description : Prostaglandins: a. contains 20 carbon atoms b. are unsaturated fatty acids containing a cyclopentane ring c. the different types of prostaglandins are classified according to the configuration of the cyclopentane ring d. all above

Last Answer : all above

What is the possible number of optical isomers for a compound containing 2 dissimilar asymmetric carbon atoms? (a) 2 (b) 4 (c) 6 (d) 8

Description : What is the possible number of optical isomers for a compound containing 2 dissimilar asymmetric carbon atoms? (a) 2 (b) 4 (c) 6 (d) 8

Last Answer : 4

What is the possible number of optical isomers for a compound containing n dissimilar asymmetric carbon atoms? (a) n2 (b) 2n (c) n + 1(d) n + 2

Description : What is the possible number of optical isomers for a compound containing n dissimilar asymmetric carbon atoms? (a) n2 (b) 2n (c) n + 1 (d) n + 2

Last Answer : 2n

How many moles are in 223.2 iron (Fe)?

Description : How many moles are in 223.2 iron (Fe)?

Last Answer : Approx 3.997 moles.

How many moles are in 223.2 iron (Fe)?

Description : How many moles are in 223.2 iron (Fe)?

Last Answer : Approx 3.997 moles.

Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from (A) 80° to 90°C (B) 90° to 95°C (C) 103° to 105°C (D) 105° to 110°C

Description : Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from (A) 80° to 90°C (B) 90° to 95°C (C) 103° to 105°C (D) 105° to 110°C

Last Answer : (D) 105° to 110°C