Nobel gas, it is in the last row of the periodic table and therefore is a noble gas
A gene is the basic unit of heredity, DNA a self replicating material and chromosome a structure of nucleic acids and protein.
Original molarity was 1.7 moles of NaCl
Final molarity was 0.36 moles of NaCl
Given Information:
Original (concentrated) solution: 25 g NaCl in a 250 mL solution, solve for molarity
Final (diluted) solution: More water is added to make the new total volume 1.2 liters, solve for the new molarity
1. Solve for the molarity of the original (concentrated) solution.
Molarity (M) = moles of solute (mol) / liters of solution (L)
Convert the given information to the appropriate units before plugging in and solving for molarity.
Molarity (M) = 0.43 mol NaCl solute / 0.250 L solution = 1.7 M NaCl (original solution)
2. Solve for the molarity of the final (diluted) solution.
Remember that the amount of solute remains constant in a dilution problem; it is just the total volume of the solution that changes due to the addition of solvent.
Molarity (M) = 0.43 mol NaCl solute / 1.2 L solution
Molarity (M) of the final solution = 0.36 M NaCl
I hope this helped:))
The correct option is C.
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0.0931
9.31 x 10^3 is 9310
So 0.0931 x 10^5 equals to 9310.
When the raised power increases shift the decimal to the left hand side. If the raised power decreases then shift it to the right hand side.
Hope this helps
