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Phoenix [80]
3 years ago
7

How many moles of N are in .235g of N2O

Chemistry
1 answer:
makkiz [27]3 years ago
6 0
Given the molar mass of Nitrogen is 14.01g/mol you can use that to solve for the moles of nitrogen.
0.235g(1mol/14.01g) = .0168 moles.
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Which are exmaples of chemical change?
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Answer:

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What is N? (Needed electrons)
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Which of the following is an example of a chemical change?
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Silicon is an element that is found directly underneath carbon in the periodic table and thus has similar properties to carbon,
kirza4 [7]

Answer:

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7 0
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A hydrate is compound that included water molecules within its crystal structure. During an experiment to determine the percent
stellarik [79]

Answer:

The percent by mass of water in this crystal is:

  • <u>21.4%</u>

Explanation:

This exercise can be easily solved using a simple rule of three where the initial weight of the hydrated crystal (6,235 g) is taken into account as 100% of the mass, and the percentage to which the mass of 4.90 g corresponds (after getting warm). First, the values and unknown variable are established:

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And the value of the variable X is found:

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The calculated value is not yet the percentage of the water, since the water after heating the glass has evaporated, therefore, the remaining percentage must be taken, which can be calculated by subtraction:

  • Water percentage = Total percentage - Percentage after heating.
  • <u>Water percentage = 100% - 78.6% = 21.4%</u>
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3 years ago
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