Calculate the number of Li atoms in 8.1 mol of Li . Express your answer using two significant figures.

Q: 2.01×1022 HeHe atoms         Express your answer using three significant figures.    How many moles…

A: We have to calculate the number of moles of He

Q: Calculate the mass of carbon atoms in 0.767 moles of glucose, C6H12O6. Use the correct number of…

A: Given that: number of moles of glucose =  0.767 To find:  mass of carbon atoms in 0.767 moles of…

Q: How many iodine atoms are present in 4.10 moles of diatomic iodine? Give your answer in scientific…

A: Given: The number of moles of diatomic iodine=4.10 moles To calculate: The number of iodine atoms.…

Q: What is the mass in grams of 2.01 x 1022 atoms of mercury?

A: • The values provided in the question are:-         i) Number of mercury atoms = 2.01 × 1022 atoms…

Q: How many moles of C (to two decimal places) are found in 6.87 x 1024 C atoms?

A: Given,The number of carbon (C) atoms = 6.87 x 1024  C atoms.

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: How many moles of Cu(NO3)2 are in 3.4 x 1022 molecules? Please have your answer in decimal format…

A:

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: Determine the mass in grams of 6.77 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A: We have to determine the mass in grams of 6.77 × 10²¹ atoms of arsenic. (The mass of one mole of…

Q: Determine the moles of barium in each sample. Be sure each of your answer entries has the correct…

A: Part 1) 731. g Ba:To find the number of moles of barium, we'll divide the given mass by the molar…

Q: Determine the mass in grams of 8.01x10^21 atoms of barium. (The mass of one mole of barium is…

A: Number of Barium atoms = 8.01 × 1021 atommass of 1 mole of Barium = 137.33 gNote:1 mol of Barium…

Q: Determine the mass in grams of 6.04 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given data,Number of atoms of Ba=6.04×1021atomsMolar mass of Ba=137.33g/mol

Q: Determine the mass in grams of 5.51 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A:

Q: I was looking over and was doing calculations so I could understand and no offense but shouldn't the…

A:

Q: Calculate the mass, in grams, of 1.751.75 mol of neon, NeNe.   mass of NeNe:…

A: The mass of 1.75 mol of neon is calculated as,

Q: What is the mass in grams of 7.94 x 1015 molecules of CS,?

A:

Q: Determine the mass in grams of 6.63 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Convert 5.26×1021 platinum atoms to moles. Express your answer in moles to three significant…

A:

Q: Convert between moles and numbers of atoms. A sample of lithium contains 2.24x1025 Li atoms. What…

A:

Q: Calculate the mass (in grams) of 4.59×1024 atoms of Cu. Calculate the number of atoms of Cu in 52.1…

A:

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: Determine the mass in grams of 3.11 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

A: Recall the data, Number of atoms of arsenic=3.11 × 10²¹ atoms  mass of one mole of arsenic is 74.92…

Q: An unknown compound has the following chemical formula: P,Cl, where x stands for a whole number.…

A: What is the value of x in PxCl3 =?

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

A: Solution:- Given - 1.01×1024 molecules of CCl4 We have to calculate 'grams of CCl4 present in given…

Q: What is the mass of 1.89x10^23  atoms of chlorine?

A: Mass of 1 mol Cl = 35.453 g  Mass of 1 mol Cl2 = 70.906 g  1 mol contains = 6.022 × 1023…

Q: Determine the mass in grams of 8.71 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The number of moles of a substance is determined as the number of molecules, atoms or ions upon the…

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 are in 4.29 x 1023 atoms of platinum?

A: To convert atoms of an element  to grams, divide the number of atoms with Avogadro's number ( 6.022…

Q: Calculate the number of moles of cobalt, Co, if you begin with 7.36 × 1023 atoms of cobalt.

A: One mole of any substance has 6.023x1023 atoms/molecules/ions. Mathematically :

Q: Determine the mass in grams of 5.15 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: Molar mass of any substance is the mass of one mole of substance and one mole of substance contains…

Q: What is the mass of 4.36 x 1023 molecules of carbon tetrachloride?

A: No of molecules of CCl4 =4.36 x 1023Molar mass of CCl4  =153.8g

Q: Is trying to discover information about an unknown metal in a compound. The formula for the compound…

A: Mass of XBr3 sample= 4.723 g Moles of Br = 5.313× 10 -2 mol

Q: Determine the mass in grams of 5.47 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given Number of barium atoms = 5.47 × 1021 Mass of barium = ?

Q: 2.845 x 10E12 potassium ions equals how many moles of potassium ions?

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.