Volume of a gas divided by molar volume = moles
moles x molar mass = mass
5600/22400 = .25
.25 x 48 = 12 g
third
Answer:
20 neutrons
Explanation:
neutrons = mass number - atomic number
mass number = 39, atomic number = 19
neutrons = 39 - 19 = 20
<span>Chemicals secreted by glands which regulate tissues or organs are called hormones. </span><span>Endocrine glands are responsible for regulating
body activities. Endocrine glands release chemicals that are called hormones
which help the body to function properly. the endocrine system regulate many
internal processes.</span>
Answer:
The uncertainty of the position of the bacterium =
Explanation:
Given that:
mass (m) =0.500 fg
To kilogram; we have:
Velocity (v) = 7.00 μm/s
To meter/seconds (m/s);
Velocity (v) =
Uncertainty of the velocity is given as 4% = 0.04
Then; multiplying the velocity of the bacterium; we have:
To determine the uncertainty in the momentum;we multiply the uncertainty in the velocity by the mass:
Now; according to Heisenberg's Uncertainty Principle;
where;
= uncertainty in the position
uncertainty in the velocity
h = Planck's Constant
Thus, the uncertainty of the position of the bacterium =