Answer:
Some chemicals react badly to your body, causing a chain of results leading to diseases.
Explanation:
Answer:
1,39 L
Explanation:
Charle's Law states that the volume of a fixed amount of gas <em>maintained at constant pressure</em> is directly proportional to the<u> absolute temperature</u> of the gas, for a constant amount of gas we can write:
As the pressure of the balloon doesn't change, we can use Charle's Law to solve the problem. Firs we change the given temperatures to absolute temperature units ( °K), using the following relations:
°K=273+°C
°K=5/9(°F-32)+273
Therefore:
V1=1.5 L, T1=273+25=298°K
V2=?, T2=5/9(36-32)+273=275,2°K
The new volume of the balloon is 1,39 L.
Answer:
9.69g
Explanation:
Xmol of n2= 7.774/22.4= 0.346 mole
molar mass of n2 2×14 =28g/Mol
Mas of n2= 0.346×28
Mas of n2=9.69grams
Using boyles law
p1v1=p2v2
p1=205
p2=?
v1=425
v2=1209
205x425=p2x1209
87125/1209=p2
p2=72kPa
Atomic mass iron ( Fe ) = 55.84 a.m.u
55.84 g ------------ 6.02x10²³ atoms
24.0 g ------------- ??
24.0 x ( 6.02x10²³) / 55.84
=> 2.58x10²³ atoms