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ryzh [129]
3 years ago
12

The photo shows wires made of pure copper, an element,

Chemistry
1 answer:
Strike441 [17]3 years ago
3 0
I can’t see the picture but a atom I think
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How many moles of ammonia are there in a 346 g sample of pure nh3?
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Molar mass NH3 = 17.031 g/mol

1 mole NH3 -------------- 17.031 g
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346 x 1 / 17.031

=> 20.31 moles of NH3

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Why is it necessary to add concentrated HCl, then water, rather than a solution of HCl to the eudiometer tube
Dmitry_Shevchenko [17]
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Consider the hypothetical serine protease, which shows the specificity pockets. The S1 pocket has a glutamic acid in the bottom,
BigorU [14]

Answer:

See explaination

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Please see attachment for the step by step solution of the given problem.

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