For the reactions system 2H2(g) + S2(g) 2H2S(g), a 1.00-liter vessel is found to contain 0.5 mole of H2 , 0.02 mole of S2, and 6
8.5 moles of H2S. What is the equilibrium constant expression? What are the chemical formulas, not numbers. (Enter subscripts after the letters: for example, H2O = Hs2O. Also, don't forget to use the proper chemical shorthand for chemical symbols. For instance, chlorine = Cl but not cl or cL.) Please and thank you!! :) NOT IN Numbers
This Image is how I have to answer it
This Image is how I have to answer it
1 answer:
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Answer:- 0.0002 ppm
Solution:- 1 ppm is one mg of solute per liter of solvent or one kg of solvent.
It asks to convert pb in blood to ppm. density of blood is
.
Let's convert micrograms to milligrams and also calculate the mass of blood from it's given density. The set up could be made using dimensional analysis and doing unit conversions as:
First the set up for the conversion of micrograms of Pb to milligrams:
=
Now, the set up for converting dL of blood to kg using it's given density and unit conversion from dL to mL as:
= 0.200 ppm
Answer:
Explanation:
We are asked to find the density of a brick. Density is a substance's mass per unit volume. The formula for calculating density is as follows.
The mass of the brick is 100 grams and the volume is 25 cubic centimeters.
- m= 100 g
- v= 25 cm³
Substitute the values into the formula.
Divide.
The density of the brick is <u>4 grams per cubic centimeter.</u>