Answer:
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Calculate the density by dividing the mass by the volume.
Using the equation density = mass/volume, you can determine the density of water. Plug in the values of mass and volume you determined and solve.
Explanation:
Answer:
Calculate the pOH for a solution with a hydroxide ion, (OH-) of concentration of 6.49 X 10-11 M.
Calculate the pH.
Note: the answers should have three significant figures
The pOH is: Blank 1
The pH is: Blank 2
Explanation:
Answer:
The answer is
Explanation:
The energy of a photon can be found by using the formula
<h3>E = hv</h3>
where
E is the energy
v is the frequency
h is the Planck's constant which is
6.626 × 10-³⁴ Js
From the question
v = 5.0 × 10¹⁴ Hz
So the energy is
We have the final answer as
Hope this helps you
I think the answer is yes
Answer:
1.87 J
Explanation:
q = c x m x (T2-T1)
c- specific heat of water (4.186 j/g.C)
q = 4.186 x 0.5137 x 0.871 = 1.87 J
