Answer:
D) N2O5
Explanation:
The molar mass of a substance is defined as the mass of this substance in 1 mol. To solve this question we must find the molar mass of each option:
<em>Molar mass NO:</em>
1N = 14g/mol*1
1O = 16g/mol*1
14+16 = 30g/mol
<em>Molar mass NO2:</em>
1N = 14g/mol*1
2O = 16g/mol*2
14+32 = 46g/mol
<em>Molar mass N2O:</em>
2N = 14g/mol*2
1O = 16g/mol*1
28+16 = 44g/mol
<em>Molar mass N2O5:</em>
2N = 14g/mol*2
5O = 16g/mol*5
28+80 = 108g/mol
That means the compound with the greatest mass is:
<h3>D) N2O5</h3>
Answer:
35.35 calories
Explanation:
A typical calorimetry problem
Q = m . C . ΔT
Q = 35 g . 0.101 cal/°C (35°C - 25°C) ⇒ 35.35 cal
Answer:
The boiling point is directly proportional to the surface area which is proportional to the molecular weight.
Explanation:
Answer:
In first mcq correct option is "solid" while in 2nd correct is "gas"
Explanation: