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A sample of oxygen is

A 36.1 mL sample of oxygen gas contains 0.529 mol of oxygen. If enough oxygen is added to the sample to obtain a volume of 50.5
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2. asked by Br¥an
3. 982 views
In a certain compound of copper and oxygen, a sample weighing 0.5424g contains 0.4831 g of Cu. How many moles of Cu in the
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2. asked by Jester21
3. 798 views
In a certain compound of copper and oxygen, a sample weighing 0.5424g contains 0.4831 g of Cu. How many moles of Cu in the
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2. asked by Jester21
3. 1,775 views
I don't know exactly how to start this question:A sample gas contains 2.95 x 10e24 molecules. The sample is 21.0% oxygen.
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2. asked by Elizabeth
3. 546 views
A sample of 25users of a gym had their oxygen consumption measured for 30 minutes after arunning exercise.The sample mean and
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2. asked by olek
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In a certain compound of copper and oxygen, a sample weighing 0.5424 g contains 0.4831 g Cu. How many moles of copper are in the
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2. asked by cook
3. 607 views
A 3.68 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was combusted in excess oxygen. This
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2. asked by Brittany
3. 569 views
A sample of oxygen gas contains 15.0 mol in a volume of 23.5 L. If the pressure and temperature are kept constant, but the
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2. 38 views
A sample of oxygen gas contains 22.5 mol in a volume of 16.0 L. If the pressure and temperature are kept constant, but the
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2. 80 views
A 2.45 gram sample of potassium chlorate is heated an the oxygen gas collected. what is the volume of the oxygen at STP.Is the
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2. asked by Anonymous
3. 1,513 views