De Broglie's wave equation describes that particles have wave properties. The equation is
λ = h/mv
Where λ is the wave length of the particle (m), h is the Planck's constant (6.62607 x 10⁻³⁴J s), m is the mass of a particle (kg) and v is the velocity (m/s).
λ = ?
h = 6.62607 x 10⁻³⁴<span> J s
m =200 g = 0.2 kg
v = 20 m/s
</span>By substitution,
λ = 6.62607 x 10⁻³⁴ J s / (0.2 kg x 20 m/s)
λ = 1.66 x 10⁻³⁴ m
Hence, the wavelength of the 200 g ball 1.66 x 10⁻³⁴ m.
A crystal that absorbs water vapor from the air is : C. hygroscopic
Hygoscropy refer to the ability of a substance to attract and hold water molecule from its surrounding environment
hope this helps
For the purpose we will use solution dilution equation:
c1V1=c2V2
Where, c1 - concentration of stock solution; V1 - volume of stock solution needed to make the new solution; c2 - final concentration of new solution; V2 - final volume of new solution.
c1 = 100%
c2 = 75%
V1 = 1 gal
V2 = ?
When we plug values into the equation, we get following:
100 x 1 = 75 x V2
V2= 100/75 = 1.33 gal
Now we can determine the necessary volume of water:
V(water)= V2 - V1 = 1.33 - 1 = 0.33 gal water should be added
<em>Mass = Moles x GFM</em>
<em>
mass = 30g so;
</em><em>30 = mol x GFM
</em>
To calculate the GFM, you require a data booklet or similar.
Mine tells me that the GFMs are:
H: 1 H₃ so 3 x 1 = 3
P: 31 P so 1 x 31= 31
O:16 O₄ so 4 x 16 = 64
GFM = 64 + 31 + 3 = 98
30 = 98 x <em>mol
</em><em>
</em><em>mol = </em>30 / 98
<em>mol = </em><u>0.31 mol</u>
Answer:
THIS IS ONLY WORTH 50 POINTS LIAR LOL
Explanation:
BUT ILL DO IT ANYWAY GIVE ME A SEC
