<span>6.2 divided by the mass number of NO3 is 0.1 moles.</span>
Answer:
Final pressure =P₂ = 15.13 psi
Explanation:
Given data:
Initial volume = 0.250 L
Initial pressure = 14.7 psi
Initial temperature = -80.0°C (-80.0 +273 = 193 K)
Final volume = 0.375 L
Final temperature = 25.0°C (25+273 =298 k)
Final pressure = ?
Solution:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
P₂ = P₁V₁ T₂/ T₁ V₂
P₂ = 14.7 psi × 0.250 L × 298 K / 193 K × 0.375 L
P₂ = 1095.15 psi .L. K / 72.375 K.L
P₂ = 15.13 psi
Explanation:
You can use copper's chemical activity to extract copper from an ore. In the process of electrolysis, and electric current breaks the chemical bond that joins the metal and other elements in the compound. ... When iron ore and a source of carbon are heated together, the iron is released
Answer:
It helps to get a better grip on the money.
Explanation:
We have to know how flame colour can be used to identify the metal ion in an unknown compound.
If golden yellow coloured flame , then Na⁺ ion because electrons get excited on heating and again fall back to emit energy of definite wavelengths corresponding to particular colour in the visible region.
If violet coloured flame , then K⁺ because electrons get excited on heating and again fall back to emit energy of definite wavelengths corresponding to particular colour in the visible region.
If crimson red coloured flame , then Sr²⁺ because electrons get excited on heating and again fall back to emit energy of definite wavelengths corresponding to particular colour in the visible region.
If yellowish green coloured flame , then Ba²⁺ because electrons get excited on heating and again fall back to emit energy of definite wavelengths corresponding to particular colour in the visible region.
