Explain why the atomic number is called the fingerprint of element
1 answer:
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Answer:
Explanation:
The molar mass of uranium-235 is 235 g/mol. So one mole of uranium-235 has a mass of 235 g. Put differently 6.022×10^23 atoms of uranium-235 have a mass of 235 g. Knowing that, how can we use that to find the mass of one atom?
mass of one atom =
Answer:
See below
Explanation:Plot the known concentrations and adsorbance data. Draw a best fit line through thwe points. When the absorbance of a solution of unknown concentration (but same substance) is determined, find the concentration from the line at that absorption value. See attached graph.
E.g., an sample of the same substance had an absorbance of 0.35. Find that on the x scale and then determine the concentration that would be required to produce that level of absorbance. 0.483M in this case.
1.302 moles of carbon dioxide would have to be added
<h3>Further explanation</h3>The equilibrium constant is the value of the product in the equilibrium state of the substance in the right (product) divided by the substance in the left (reactant) with the exponents of each reaction coefficient
The equilibrium constant is based on the concentration (Kc) in a reaction
pA + qB -----> mC + nD
While the equilibrium constant is based on partial pressure
The value of Kp and Kc can be linked to the formula '
R = gas constant = 0.0821 L.atm / mol.K
=n = number of product coefficients-number of reactant coefficients
An equilibrium mixture: 0.750 moles of CO2 and H2, and 0.200 moles of CO and H2O
- We determine Kc (constant concentration)
- the amount of carbon monoxide to 0.300 mol
Reaction :
CO +H₂O ⇔ CO₂ + H₂
initially 0.2 0.2 0.75+x 0.75
reaction 0.1 0.1 0.1 0.1
product 0.3 0.3 0.65+x 0.65
an equilibrium constant brainly.com/question/9173805
Calculate the value of the equilibrium constant, Kc
Concentration of hi at equilibrium
Keywords: constant equilibrium, Kc, concentration, product, reactant, reaction coefficient