What is the difference between molecular mass and molecular weight? What are their values for H2?...
What is the difference between molecular mass and molecular weight? What are their values for H2? Please be accurate to the 2nd digit after the decimal point. Are the two values exactly the same?
Homework Answers
Molecular mass defined as sum of the masses of all the atoms contained in the molecule. Expressed in Dalton unit
Molecular weight is sum of weight of all the atoms in the molecules, expressed in g/l unit
H2 molecular mass = 2.01588 Da
H2 mecular weight = 2.01588 g/mol
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What is the difference between molecular mass and molecular
weight? What are their values for H2?...
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what is the difference between H1 + V12/2 = H2 + V22/2 and I know the...
what is the difference between
H1 + V12/2 = H2 +
V22/2
and
I know the difference is gravity, however is the equation
H1 + V12/2 = H2 +
V22/2 still correct? or do we need to include
gravity in the calculation? If we need to include gravity for KE
why dont we need to include mass?
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References] The molecular weight of myoglobin is about 17,000 amu. What is the mass in grams of a single molecule of myoglobin? Mass g/molecule Submit Answer Try Another Version 10 item attempts remaining
6. What is the difference between equivalent mass and molar mass? 7. A triprotic acid has the molecular formula H2CH3O7. a. What is the molar mass of this acid? 192. 1235 almal b. What is the value of the equivalent mass for this acid?
7. Please calculate the number-averaged molecular weight and weight-averaged molecular weight for the following polymer. (6 pt) Fraction Mass(g) Mx 104(g/mol)1.24 1.521.361.282.301.504.28 1.21 1181.4567 0.23 0.18 0.56 0.82 3.76 8. A student mixed two batches of PS accidently in the lab, what would be number-averaged molecular weight and weight-averaged molecular weight for this PS mixture. (6 pt) Batch Mass(g) Mw (g/mol) Mn (g/mol 15 75,000 50,000 150,000 120,000
what is the difference between
H1 + V12/2 = H2 +
V22/2
and
I know the difference is gravity, however is the equation
H1 + V12/2 = H2 +
V22/2 still correct? or do we need to include
gravity in the calculation? If we need to include gravity for KE
why dont we need to include mass?
5. 6. 7. In your own words explain the difference between weight and mass. How do you think the force of friction is related to the weight of the box? Explain. What are the forces acting on the cart when held and when let go? Make a free body diagram for each situation
References] The molecular weight of myoglobin is about 17,000 amu. What is the mass in grams of a single molecule of myoglobin? Mass g/molecule Submit Answer Try Another Version 10 item attempts remaining
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