Hello there :3 Please anwser this Combined gas law problem for me . By the way just anwser #4 for me that’s all . I uploaded the
formulas on my other question if you need to use it . Please help me I don’t understand this please be an expert I will mark brianliest don’t scam me and SHOW ALL THE WORK! I just don’t understand *.* . Will report any links !
1 answer:
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Answer:
2016 km
Explanation:
The escape velocity from Earth's surface is .
We need to find how many kilometers would a rocket travel in three minutes. It is a concept based on the definition of speed of an object.
Speed = distance per unit time
1 hour = 60 minutes
⇒ 3 minutes = 0.05 hour
1 m/s = 3.6 km/h
11200 m/s = 40320 km/h
So,
Hence, a rocket will travel 2016 km in 3 minutes.
<u>Answer:</u>
<u>For A:</u> The mass of iron (III) sulfate is 600. g
<u>For B:</u> The moles of ammonium carbonate is 0.07216 moles
<u>For C:</u> The mass of given number of molecules of aspirin is 0.359 grams.
<u>For D:</u> The molar mass of diazepam is 284.7 g/mol
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
- <u>For A:</u>
We are given:
Number of moles of iron (III) sulfate = 1.50 mol
Molar mass of iron (III) sulfate = 399.9 g/mol
Putting values in equation 1, we get:
Hence, the mass of iron (III) sulfate is 600. g
- <u>For B:</u>
We are given:
Mass of ammonium carbonate = 6.935 g
Molar mass of ammonium carbonate = 96.1 g/mol
Putting values in equation 1, we get:
Hence, the moles of ammonium carbonate is 0.07216 moles
- <u>For C:</u>
We are given:
Number of aspirin molecules =
Mass of 1 mole of aspirin = 180.16 g/mol
According to mole concept:
number of molecules occupies 1 mole
So, number of molecules of aspirin has a mass of 180.16 grams
Thus, number of molecules of aspirin will have a mass of
Hence, the mass of given number of molecules of aspirin is 0.359 grams.
- <u>For D:</u>
We are given:
Moles of diazepam = 0.05570 mol
Given mass of diazepam = 15.86 g
Putting values in equation 1, we get:
Hence, the molar mass of diazepam is 284.7 g/mol