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a 500ml sample of oxygen

what mass of magnesium is needed to reduce a 500ml sample of oxygen at stp to a 375ml sample?Mg + O2--> MgO + O2
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2. asked by Erin
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what mass of magnesium is needed to reduce a 500ml sample of oxygen at stp to a 375ml sample?Mg + O2--> MgO + O2
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2. asked by Anonymous
3. 325 views
a 500ml sample of oxygen gas at 24 degree celsius was prepared by decomposing a 3% aqueous soution of hydrogen peroxide in the
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2. asked by Elizabeth
3. 1,571 views
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. 1,001 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. 816 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
1. 1 answer
2. asked by Jester21
3. 1,794 views
a 500ml sample of o2 gas at 24 degrees celsius was prepared by decomposing a 3% aqueous solution of hydrogen peroxide, in this
1. 1 answer
2. asked by Michelle
3. 2,974 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. 564 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
3. 523 views
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. 623 views