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Alekssandra [29.7K]
2 years ago
14

Calculate the mass in grams for 2.28 moles of N2.

Chemistry
1 answer:
borishaifa [10]2 years ago
7 0

Answer: 63.9

Explanation:

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If 7.4 moles of carbon dioxide is produced in this reaction, how many moles of oxygen gas would be needed?
Nimfa-mama [501]

Answer:

11.6 mol O₂

Explanation:

  • C₇H₁₆ + 11 O₂ → 7 CO₂ + 8 H₂O

In order to solve this problem we need to <u>convert moles of carbon dioxide (CO₂) into moles of oxygen gas (O₂)</u>. To do so we'll use a conversion factor containing the <em>stoichiometric coefficients</em> of the balanced reaction:

  • 7.4 mol CO₂ * \frac{11molO_2}{7molCO_2} = 11.6 mol O₂
4 0
2 years ago
What information does the formula for an ionic compound provide?
Korolek [52]

It provides us with the knowledge of what the cation and anion of the compound are, as well as how many atoms of each are present.

7 0
2 years ago
A sample of Copper absorbs 43.6 KJ of heat, resulting in a temperature rise of 75.0 oC, determine the mass (in Kg) of the copper
yanalaym [24]

Explanation:

here is the answer to your question

3 0
2 years ago
A typical person has an average heart rate of 75.0 beats/min. Calculate the following a)How many beats does she have in 7.0 year
hram777 [196]

Let us first convert years to minute.

7 years * (365 days / year) * (24 hours / day) * (60 minutes / hour) = 3,679,200 minutes

 

a. beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.0 years (2 significant figures), therefore:

beats = 270,000,000 beats

 

b beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.000 years (4 significant figures), therefore:

<span>beats = 275,900,000 beats</span>

5 0
3 years ago
Read 2 more answers
CHEMISTRY HELP !?????
zheka24 [161]

3. Plasma

- indefinite shape & volume

- affected by magnetic and electric field

- drift and flow freely


4. Liquids have fixed volume meaning packed tighter together as gases do not have fixed shape or volume .

D would be correct

8 0
3 years ago
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