Given the following equation: 2F2 + 2H20 + 4HF + O2 What mass of fluorine is needed to completely react with 3.6 grams of water? Molar mass of F2 = 38.00 g/mol Molar mass of H20 = 18.02 g/mol)

7.59 g

Explanation:

To solve this, you need to look at the stoichiometry of the equation.  For every 2 moles of H₂O, 2 moles of F₂ are needed to completely react.  This means that however many moles of H₂O you have, the same amount of moles are needed for F₂.

Convert grams of H₂O to moles using the molar mass.  moles = 0.1998

Since moles of H₂O are equal to moles of F₂, you have 0.1998 moles of F₂.  Now, convert this to grams using the molar mass.  grams = 7.59

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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