1. Mass of magnesium (±0.0001 g) 0,0361 2. Temperature of hydrogen at your desk 20°C 4Y.5mL 712.4m Hal 3. Volume of hydrogen 4. Barometer reading (at 2 2. |_°c) a. Barometer correction for 2.45anHly 709.95mnhe temperature (subtract) b. Corrected atmospheric pressure 5. Water-level difference ruler 9.7cm nemnt 97mm 6. Mercury equivalent of the water- level difference 97:13.6 7.13 rmHq 7. Vapor pressure of water in the buret 19.572mntHe 683.248m. 8. Pressure of dry hydrogen alone (4b minus 6 and 7) 46-(6+7) Calculations: 709.95-(713.19 572): PV:aRT K 1.66rmby=yL atm X-22.1 esults 9. Calculated atomic weight of magnesium (4 SF)

Q: etermine the number of atoms in 37.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Mass of sodium =37.0g Atomic mass of sodium = 22.99g/mol Moles of sodium = 37.0g/22.99g/mol = 1.61…

Q: .........grams of zinc arsenite contains 4.5 x 1024 atoms of arsenic.

A:

Q: A mass of 145 g of a certain element is known to contain approximately 3.64 x1024 atoms. What is the…

A: Let the molecular weight of the element is M gm/mol.  Moles = weight/mol. wt.  Or, moles = 145/M  We…

Q: A sample of Cu weighs 64.6 grams. Will a sample of Zn that contains the same number of atoms weigh…

A:

Q: You have a compound with the formula X₂Y. X is an isotope with a mass of 20g/mol and Y is an isotope…

A: Mass of X = 20 g/mol Mass of Y = 43 g/mol

Q: Complete the table. Element Mass Moles Number of Atoms Na 38.5 mg C 1.12 V 214 Hg 1.44 kg

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: What is the mass of a single bromine molecule, Br 2?

A: The bromine molecule is composed of two bromine atoms that are covalently bonded to one another.

Q: There are two naturally occurring isotopes of rubidium. What is the abundance of each isotope?…

A: The abundance of each isotope is to be calculated.

Q: How much does 4.28 x 10 21 atoms of Nickel weigh?

A: We know that, one mole of any substance contains 6.022 × 1023 atoms. We can determine the weight by…

Q: Determine the number of atoms in 39.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Mass of calcium = 39.0 grams Mass of 1 mol of calcium = 40.08 g. Number of atoms = ?

Q: A pure silver ring contains 4.55×1022 silver atoms. How many moles of silver atoms does it contain

A: A mole of a substance is equal to as many entities (atoms , molecules and ion ) as there are number…

Q: What is the mass of 4.97×1021 platinum atoms?

A: Mass has many units. Its SI unit is Kg. On atomic level, atomic mass unit, molar mass, molecular…

Q: For which element does a sample of 1.5055 × 1024 atoms have a total mass of 70.215 g?

A: The objective of the question is to identify the element for which a sample of 1.5055 x 10^24 atoms…

Q: Carbon exists as 3 isotopes. It is 88% C-12, 1% C-13 and 11% C-14. What is the average atomic mass…

A: average atomic mass= isotop% multiplied by atomic mass /100

Q: How do I calculate the mass of 6.20 x 10^22 tungsten atoms?

A: Given : Number of tungsten atoms = 6.20 x 10^22  Molar mass of tungsten = 183.84 g/mol

Q: How many grams does 1.44 x 1028 carbon atoms weigh?

A: To calculate the mass in grams for the atoms  First we have to convert the number of Atoms into…

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: A student synthesizes tin oxide to create a compound with generic formula SnxOy. She does this by…

A: Given : mass of product= 39.10 g        Mass of tin = 30.80 g

Q: A student has a sample of zinc that weighs 22.19 g How many zinc atoms are in this

A: Given :- mass of Zn = 22.19 g  To be calculated :- number of Zn  atoms  molar mass of Zn = 65.38…

Q: What is the mass of 1.6x10^21 argon atoms?

A: Molar mass of Argon is 39.95 g/mol i.e 1 mole of argon = 39.95 g of Argon Number of atoms of Argon…

Q: What is a proton ? what is a chemical?

A: A proton is a subatomic particle which is present in the nucleus of an atom along with the neutrons.…

Q: Determine the number of atoms in 25.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Given, the mass of one mole of sodium is 22.99 gwe are asked to calculate the number of atoms in…

Q: A pure titanium bicycle frame contains 1.61 x 10^25 titanium atoms. What is its mass in kilograms?

A: 1 mole of any substance contain 6.022 × 1023 unit of that substance. that substance may be atoms,…

Q: What would the mass be of Gold, if you had 6.02 x 10^24 atoms of

A: GOLD, molar mass of Au = 196.97 g/mol atoms of Au = 6.023 x 1023

Q: What is the mass of 3.50 billion billion atoms of rhenium?  (One billion billion is 1 x 10^18)

A: Given: The number of atoms of Rhenium(Re)=3.50×1018  The atomic mass of Re=186.207 u

Q: Determine the mass (in grams) of aluminum present in 1.07 grams of Al2S3? Do not type units into…

A:

Q: One atomic mass unit has a mass of 1.6605402 × 10-24 g. a)Calculate the mass, in grams, of one…

A: The mean atomic mass of magnesium stands at 24.305 atomic mass units (amu). An atomic mass…

Q: How many helium (He) atoms are there in 3.75 moles of helium?   3.75 x 1023 atoms 3.99 x 1025 atoms…

A: You have given - Moles of He = 3.75 mol

Q: Determine the mass in grams of 7.75 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Given,the mass of one mole of carbon = 12.01 gNumber of carbon atoms = 7.75×1021 atomsHere, we are…

Q: What is the mass of 4.50 x 10 22 Cu atoms?

A:

Q: How many atoms are there in 77.9 g of selenium? You will need to divide your answer by 1.0X10^23

A:

Q: Identify as true (T) or false (F): | Minerals separating from flowing water as stony deposits…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: new (imaginary) element has been discovered.  It exists in three naturally occurring isotopic forms.…

A: . Suppose an Element 'Y' consistof three isotopes :-    Isotopes mass amu      abundanceY.      X1…

Q: butane (C4H10) is combusted in the presence of oxygen.  carbon dioxide and water are produced. if…

A: Given - Weight of butane =150g Weight of carbon dioxide=?

Q: How many moles of aluminum do 1.42 x 10^24 aluminum atoms constitute?

A: 1 mol of any atom has 6.023 ×1023 number of atoms .

Q: 5. Find the mass in grams of each of the following. a) 1 gold atom b) 6.02 X 1023 He atoms

A:

Q: e mass

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: Determine the number of atoms in 41.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Given: Mass of sodium 41.0 g            Mass of one mole of sodium is 22.99 g/mol First divide the…

Q: In a combustion reaction, 30.8 g of ethanol reacts with 64.3 g of oxygen to produce water and carbon…

A: The balanced chemical equation for the combustion of ethanol can be written as,C2H5OH + 3O2 → 2CO2 +…

Q: What is the mass of 1.78 moles of P205? Use 2 decimals for your atomic weights and 2 decimals for…

A:

Q: How many grams of rubidium are in 3.49 x 1024 atoms of rubidium? Enter your answer in decimal form…

A: 1 mole atoms = 6.023 * 1023 atoms. molar mass of Rb = 85.4678 gmole  and mass of Rb = mole * molar…

Q: 6. What is the mass of 6.20 x 1025 atoms of sulfur?

A: We have 6.2*1025 atoms of sulphur , we have to calculate the mass of given atoms of sulphur.

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.