a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen
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<u>Answer:</u> The number of gold atoms per cubic centimeters in the given alloy is
<u>Explanation:</u>
To calculate the number of gold atoms per cubic centimeters for te given silver-gold alloy, we use the equation:
where,
= number of gold atoms per cubic centimeters
= Avogadro's number =
= Mass percent of gold in the alloy = 42 %
= Density of pure gold =
= Density of pure silver =
= molar mass of gold = 196.97 g/mol
Putting values in above equation, we get:
Hence, the number of gold atoms per cubic centimeters in the given alloy is
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Explanation: Look at the scrrn shot and you can see what is on there or not. :)))))
