a. What is the mass of 1.49 x 1024 atoms of chlorine? grams b. What is the mass of 9.12 x 1023 molecules of chlorine? grams

Q: How many atoms are in 141 g of calcium?

A: Given:  Amount of Calcium = 141 grams  W = 141 grams  Gmw of Calcium = 40 g/mole  No. of atoms are…

Q: A sample of chlorine has a mass of 49.4 grams. How many Cl atoms are there in the sample?  atoms…

A: Chlorine mass of  = 49.4gm Calculate the  =  1 - how many cl atom of sample  2 - how many cl2…

Q: b. 3.01 x 1023 atoms of Rubidium c. 8.08 x 1022 atoms of Krypton d. 2.997 x 1025 atoms of Vanadium

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: The formula for sulfur hexafluoride is SF. a. How many molecules are in 6.61 grams of sulfur…

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Q: A copper ring is composed of 1.45×1023 atoms.1.45×1023 atoms. Calculate the mass of the ring in…

A: The mass of the ring in grams is to be calculated

Q: What is the mass of 3.119 moles of Ca(OH)2? a.  231.1 g b. 462.1 g d. 74.10 g c. 4.209 x 10^-2 g

A: Given, moles of Ca(OH)2 = 3.119 moles. We have to calculate how many grams of Ca(OH)2 are present…

Q: [References] A1.782-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the…

A: Given data, Mass of coal sample = 1.782 g Mass of carbon = 1.584 g Mass percentage can be calculated…

Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: Calculate the number of atoms in each of the following masses: a. 54.0 g of aluminum ans: 1.21 1024…

A:

Q: A.)What mass of cobalt contains the same number of atoms as 77.0 g of fluorine?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A compound is found to consist of 1.37g of iron and 2.62g of chlorine. What is the percent by mass…

A: Given that: mass of iron = 1.37 g mass of chlorine =  2.62 g  To find: the percent by mass of…

Q: 1. What is the mass of 1.78×104 atoms of boron ? grams 2. How many boron atoms are there in 39.7…

A:

Q: A sample of trifluoroacetic acid, C,HF,O2, contains 62.1 g of oxygen. Calculate the mass of the…

A: The mass of oxygen in the trifluoroacetic acid, C2HF3O2 is = 62.1 g The mass of the trifluoroacetic…

Q: B How may oxygen atoms are in 225 g of oxygen gas? 4.23 x 102+ b. 6.84 x 10²4 8.47 x 10²4 1.69 x…

A: To calculate the number of oxygen atoms in 225 g of Oxygen gas.

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

A: Given values: Percentage of carbon = 70.53 % Percentage of hydrogen = 13.02 % Percentage of nitrogen…

Q: How many grams of gold (Au; atomic mass = 197.0 g/mol) contains 2.5 x 1020 gold atoms?

A: Number of moles = mass/molar mass  Mass = moles × molar mass  Molar mass of Au = 197.0 g/mol

Q: 9. Which of the following has the greatest number of particles? (A) 9.012 g of Be (B) 1 mole of Na…

A: The no of moles is the ratio of given mass to that of molar mass of that substance.  For more than…

Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

A:

Q: Determine the mass in grams of 4.83 × 10²¹ atoms of barium

A: Given :- number of atoms of Ba = 4.83 × 1021 atoms  Mass of 1 mol Ba = 137.33 g  To calculate :-…

Q: What is the average mass (in grams) of a single nitrogen dioxide molecule? A. 3.6 x 10-26 g B. 2.77…

A: Since mass of 1 molecule  = molar mass / Avogadro's number Molar mass of Nitrogen dioxide (NO2) = 14…

Q: A mixture of NaCl and NaBr has a mass of 2.00 g and contains 0.75 g of Na. What is the mass of NaBr…

A: Mass of NaCl is X and Mass of NaBr is Y Hence, X+ Y = 2 gm ……(1)   and  X = 2 - Y But, % Na = Mass…

Q: 1.28 x 1023 molecules of C10H22 would have what number of carbon atoms? How many moles are there in…

A:

Q: 5. A bottle of Ibuprofen (C,,H,,O,) contains 1.204 x 1024 molecules. How many grams of ibuprofen are…

A: The molecular weight is 206.29 g/mol means 1 mol of ibuprofen = 206.29 g of ibuprofen

Q: 1. A mole of hydrogen gas (H₂) is compared with a mole of lead (Pb). You can be certain that the…

A: One mole represents 6.023 x1023 particles. So, one mole of a substance = 6.023 x1023…

Q: 4.00 moles of carbon have a mass of? a. 4.60 g b. 23.0 g c. 92.0 g d. 11.0 g e. 48.0 g

A: The molar mass of carbon=12 g/mol The given number of moles of Carbon=4.0 mol

Q: Upon decomposition, one sample of magnesium fluoride produces 1.66 kg of magnesium and 2.58 kg of…

A: The values are given as follows:

Q: °C. Mass of Mg = g %3D

A:

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: 6. This Magnesium top by ForeverspinTM weighs merely 6g. a) Write the weight of this top in…

A: The question is based on mole concept. We have to determine number of particles present in 6 gram of…

Q: A sample of C,H, has 9.28 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A: Interpretation-  To determine the carbon atom in the give molecule C3H8 - To determine the total…

Q: A compound of iodine and cesium contains 63.94 g of metaland 61.06 g of nonmetal. How many grams of…

A: Metal is the element that has a tendency to donates electrons and conducts electricity while…

Q: Determine the mass in grams of 6.03 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The given mass of 1 mole of carbon atoms = 12.01 g So, the mass of 6.022×1023 atoms of carbon =…

Q: 4. How many grams would 2.5 moles of magnesium (Mg) weigh? 5. How many grams would 10.0 moles of…

A: 4) Given : Moles of Mg = 2.5 mol Since atomic mass of Mg = 24.3 g/mol Hence mass of Mg = moles X…

Q: Upon decomposition, one sample of magnesium fluoride produced 2.55 kg of magnesium and 3.99 kg of…

A: Given information, Magnesium is produced from the first sample is 2.55 kg. Fluorine is produced from…

Q: 4. If 2.784 grams of silver oxide are decomposed to yield 2.592 grams of silver. a) How many grams…

A:

Q: What is the mass of 2.49 x 1022 of CH4 molecules?  ( 1 mole = 6.02 x 1023)

A: Calculate the number of moles of methane.

Q: A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride: Li + F2 →…

A: Given, A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride:Li +…

Q: Determine the number of atoms in 27.0 grams of bromine, Br. (The mass of one mole of bromine is…

A: Given : mass of 1 mole of bromine i.e Br = 79.90 g And mass of Br = 27.0 g

Q: Mass of crucible, lid, and magnesium oxide                                             ____19.41…

A: Given: Mass of the crucible, lid, and magnesium oxide = 19.41 g And Mass of empty crucible and lid…

Q: Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.58 kg of…

A:

Q: Determine the mass in grams of 6.24 x 1021 atoms of barium. (The mass of one mole of barium is…

A:

Q: How many grams of BrBr are in 305 g CaBr2? mass:

A:

Q: What percent by mass of iron(II) phosphate is iron? a.46.9 b.73.2% c.24.3% d.33.7%

A: Determination of percentage of iron in iron(II) phosphate

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: Answer  4 ) one mole is equivalent to        c) 16g  oxygen  1 mol is  equal to 6.022×1023 (…

Q: Dichlorobenzene has a molecular formula of C6H4Cl2 (MW=147.00 g/mole).      What mass of…

A: Given, dichlorobenzene 1.81x1024 total atoms

Q: Upon decomposition, one sample of magnesium fluoride produces 1.65 kg of magnesium and 2.57 kg of…

A: The amount of magnesium produced on the decomposition of sample (I) of MgF2 is 1.65 kg. The amount…

Q: 1.21 x 1028 atoms of oxygen gas (o,)? 1 mol = 6.02 x %3D F7 FB F9 F10 F11 F12

A: Number of Molecules of O2 gas = ( Number of atoms of O2 gas / 2 )  Number of Molecules of O2 gas = (…

Q: a. How many moles are in 8.5x1022 atoms Xe? b. How many moles are in 7.4×10 atoms Cu? c. How many…

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.