The emission spectrum of a chemical element
A.) true
Because the rocks are formed near lava so the texture would be smooth
Answer:
2.05mg Fe/ g sample
Explanation:
In all chemical extractions you lose analyte. Recovery standards are a way to know how many analyte you lose.
In the problem you recover 3.5mg Fe / 1.0101g sample: <em>3.465mg Fe / g sample. </em>As real concentration of the standard is 4.0 mg / g of sample the percent of recovery extraction is:
3.465 / 4×100 = <em>86,6%</em>
As the recovery of your sample was 1.7mg Fe / 0.9582g, the Iron present in your sample is:
1.7mg Fe / 0.9582g sample× (100/86.6) = <em>2.05mg Fe / g sample</em>
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I hope it helps!
A) 3AgNO3 + GaCl3 --> 3AgCl + Ga(NO3)3
b) 3Ag(+) + 3NO3(-) + Ga(3+) + 3Cl(-) --> 3AgCl(s) + Ga(3+) + 3NO3(-)
c) 3Ag(+) + 3Cl(-) --> 3AgCl(s)
d) Ga(3+), 3NO3(-)
From the calculations and by the use of Boyles law, the new pressure of the gas is 1.7 atm
<h3>What are gas laws?</h3>
The term gas law is used to demonstrate the relationship between the volume, pressure, number of moles and temperature of a gas.
Using the Boyles law;
P1 = 1 atm
P2 = ?
V1 = 6 L
V2 = 3.5 L
P1V1= P2V2
P2= P1V1/V2
P2= 1 atm * 6 L/3.5 L
= 1.7 atm
Learn more about Boyles law:brainly.com/question/1437490
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