Answer: -
If 13.3 mole of Co(NO₃)₂ are reacted, 26.6 mole of NaNO₃ are produced.
Explanation: -
The balanced chemical equation for the production of NaNO₃ from Co(NO₃)₂ is
Co(NO₃)₂ + Na₂SO₄ → 2 NaNO₃ + CoSO₄
From the balanced equation we see that
1 mole of Co(NO₃)₂ gives 2 moles of NaNO₃
13.3 mole of Co(NO₃)₂ gives moles of NaNO₃
= 26.6 mole of NaNO₃
Given:
Mass, m = 51.1 g
Volume, V = 6.63 cm³
By definition,
Density = Mass/Volume
= (51.1 g)/(6.63 cm³)
= 7.7074 g/cm³
In SI units,
Density = (7.7074 g/cm³)*(10⁻³ kg/g)*(10² cm/m)³
= 7707.4 kg/m³
Answer: 7.707 g/cm³ or 7707.4 kg/m³
Answer:
These two numbers are fixed for an element. The mass number tells us the number the sum of nucleons of protons and neutrons in the nucleus of an atom. The atomic number also known as the proton number is the number of protons found in the nucleus of an atom. ... The atomic number uniquely identifies a chemical element.
Explanation:
Answer:
17.27 atm
Explanation:
Use the ideal gas law or PV = nRT
We are solving for pressure here so lets isolate for P before we plug in values:
So first to get n or the number of moles we need to convert the grams of N2O to moles of N2O. We can do this by multiplying by the inverse of the molar mass like so:
Our grams of N2O would cancel and give us 11.813 mol of N2O
Now all thats left is to plug in and solve with the correct value for R which in this case for all of our units to cancel is 0.08206
P = 17.27 atm
(I would double check the calculator work if it is for correctness just be sure)
Br2 is the correct answer