Consider a 0.336 gram sample of H20 and determine the hydrogen's mass.

Q: Lithium has two stable isotopes, 6Li and 7Li. If a sample is composed of 48.0% of the lighter…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the…

A: Given, Mass of Na =11.42 g

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: 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: A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. How many grams of…

A: The question is about calculating the mass of Nitrogen in a 169 g sample of the substance -

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: If you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

A: Given, Number of Nitrogen atoms = 13.02 X 1023

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: The molar mass of oxygen is 15.999 g/mol, so 33.7337g of oxygen converts to 2.10 moles of oxygen.…

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

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: A sample of trifluoroacetic acid, C2HF3O2, contains 32.1 g of oxygen. Calculate the mass of the…

A: Given,  Mass of O in a sample of C2HF3O2 = 32.1 g Calculate the mass of C2HF3O2 sample = ?

Q: What mass of nickel would contain 5.66 x 1021 atoms?

A:

Q: Determine the mass in grams of 6.96 × 102¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole is defined as mass of substance divide by it's molar mass

Q: Rubidium has two naturally occurring isotopes. The average mass of Rb is 85.4678 u. If 72.15% of Rb…

A: Given, Average mass of Rb = 85.4678 u Isotope I, Rb-85 : natural abundance = 72.15 %  relative…

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: If the mass percentage of O in a sample is 68% and the total mass of the sample is 4.128 Kilograms-…

A:

Q: Calculate the mass, in grams, of sample.  7.9x10^21 uranium atoms

A: GIVEN: To solve: Mass in grams of uranium atom sample=?

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: Consider two compounds. Compound A contains 2.77 g of phosphorus and 9.53 g of chlorine. Compound B…

A: Given,Mass of Phosphorus in compound B =11.9gMass of chlorine in compound B =40.9g

Q: If you have 1.08 x 10^24 atoms of gold, how many grams of gold do you have?

A: 1 mole of a substance contains Avogadro's number (6.022×1023) of atoms.

Q: Determine the mass in grams of 2.25 x 10 21 atoms of copper. (The mass of one mole of copper is…

A: Introduction: Copper element belongs to group 11 of the periodic table with atomic number 29 and…

Q: A meteorite found in central Indiana contains traces of the noble gas neon picked up from the solar…

A: The average mass of an element can be defined as the sum of each individual isotope's mass…

Q: Determine the mass (in grams) of aluminum present in 1.08 grams of Al2S3?

A: Molar mass of the elements is equal to the sum of the atomic masses of all the elements. Molar mass…

Q: 23 atoms of magnesium? 1. How many moles of magnesium is 5.61 x 10

A: moles of any species is defined as when given mass of species divided by its molar mass

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

A:

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: 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: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

A:

Q: A sample of trifluoroacetic acid

A: Atomic mass of C = 12 amu Atomic mass of H = 1 amu Atomic mass of F = 19 amu Atomic mass of O = 16…

Q: 2. Determine the number of protons contained in particle of protons having a mass of 5.019 x 10*…

A: Interpretation-  To determine the number of proton contained in the particle of proton having mass…

Q: Determine the mass of 3.01 × 10^20 atoms of Sulfur.

A:

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: Given, mass of oxygen = 33.7 g Now, one mole of C2HF3O2 contains two moles of oxygen.

Q: What is the mass of 4.12 x 10^23 water molecules?

A: The number of water molecules is = 4.12×1023 molecules The mass of these molecules is =?

Q: Calculate the mass of 1.23×10241.23×1024 helium atoms.

A: 1 mole of a substance contains Avogadro number of atoms.

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: What is the mass of 1.85x10^23 atoms of nitrogen?

A: Given  Number of atom of Nitrogen = 1.85 × 1023 atom  Mass of Nitrogen = ?