Methanol is used in the production of many chemicals. Methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO + 2H2 → CH3OH

A. Calculate the number of grams of carbon monoxide needed to produce 4 moles of CH3OH.

B. How many moles of hydrogen are necessary to react with 2.85 moles CO.

The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride.
5F2 + 2 NH3 → N2F4 + 6HF

A. If you have 66.6 grams of ammonia, how many Liters of F2 are required?

4Zn + 10HNO3 → 4Zn(NO3)2 + NH4NO3 + 3H2OA. A. How many atoms of Zn react with 1.49 mole of HNO3?
B. How many molecules of Zn react with 56 grams of HNO3?

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Explanation:

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Explanation:

a chemical reaction happens

explanation:

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.