subject
Biology, 18.03.2021 17:50 nicki76

Introduction: Chemists are often interested in obtaining a certain mass of product from a chemical reaction without wasting any reactants. But how is this done? To calculate the masses of reactants needed for a desired
mass of product, it is necessary to understand a unit of quantity called the mole.
Question: How do chemists know how much of each substance to mix?
1. Observe: The mass of a molecule of a substance is its molecular mass (M). Molecular mass is measured in
universal mass units (u). One universal mass unit (1 u) is approximately the mass of a proton. Hydrogen gas
has a molecular mass of 2.0158 u.
A. Type the formula "H2" into the Reactants box. What is the molar mass of hydrogen gas, H,?
B. What is the relationship between the molecular mass and the molar mass of a substance?

ansver
Answers: 3

Other questions on the subject: Biology

image
Biology, 22.06.2019 05:00, tonyanayy
Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above
Answers: 1
image
Biology, 22.06.2019 09:50, emily743
Ascientific idea becomes valid when it is what?
Answers: 2
image
Biology, 22.06.2019 11:30, luludawn2455
Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different
Answers: 2
image
Biology, 22.06.2019 13:00, latoyatuggle23
How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans
Answers: 1
You know the right answer?
Introduction: Chemists are often interested in obtaining a certain mass of product from a chemical r...

Questions in other subjects:

Konu
Mathematics, 18.06.2020 17:57
Konu
Physics, 18.06.2020 17:57