This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): CH_3CO_2H An analytical chemi
st has determined by measurements that there are 0.054 moles of oxygen In a sample of acetic acid. How many moles of hydrogen are in the sample? Be sure your answer has the correct number of significant digits.
1 mole of any gas under STP has volume 22.4 L. Molar mass M(H2S) = 2M(H) + M(S)= 2*1.0 +32.1=34.1 g/mol 15g * 1mol/34.1g= 0.440 mol 0.440 mol*1L/22.4L= 9.85 L <span> The volume of 15.0 grams of H2S at STP is 9.85 L.</span>
<span>Potential energy. This energy refers to the energy that is possessed by a physical object by virtue of its relative position with respect to other tangible objects that are in its vicinity. This energy keeps on changing as an object is set in motion.</span>