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Len [333]
3 years ago
9

Convert 250 g O2 to mol O2​

Chemistry
1 answer:
Nezavi [6.7K]3 years ago
8 0

Answer:

250 g converted to mol O2 is O16.

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Provide a method for separating the mixtures of two or three compounds, dissolved in a solvent diethyl ether. In each case one o
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A solution was prepared by mixing 50.00 ml of 0.100 M of HNO3 and 100.00 ml of 0.200 M HNO3. Calculate the molarity of the final
valentina_108 [34]

Answer:

The molarity of this final solution is 0.167 M

Explanation:

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The final molarity must lie between 0.1M and 0.2M  

Moles = molarity * volume

Moles HNO3 in 50mL of a 0.100M solution = 0.05 L *0.100 M = 0.005 mol

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total moles = 0.005+0.020 = 0.025 moles in 150mL solution = 0.150L

Step 3: Calculate molarity of final solution

Molarity = mol / volume

Molarity 0.025 moles /0.150  L

Molarity = 0.167M

The molarity of this final solution is 0.167 M

4 0
3 years ago
A student has 5 mL of 0.300 M (NH4)2CrO4 solution. What is the concentration of NH4+ in this solution?
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From the given chemical formula or equation, it can be seen that for every molecule of the given chemical, there are 2 moles of NH4+ ions. Thus, to calculate for the concentration of the ion in the solution, we multiply 0.30M by 2 giving as an answer of 0.60M. 
3 0
3 years ago
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