Answer:
The new pressure is 456.76 mmHg
Explanation:
Step 1: Data given
The initial volume of the gas = 5.80 L
The initial pressure of the gas = 1.00 atm
The volume of the gas increases to 9.65 L
The temperature is kept constant
Step 2: Calculate the new pressure
P1*V1 = P2¨V2
⇒with P1 = the initial pressure of the gas = 1.00 atm
⇒with V1 = the initial volume of the gas = 5.80 L
⇒with P2 = the new pressure = TO BE DETERMINED
⇒with V2 = the increased volume of the gas = 9.65 L
1.00 atm * 5.80 L = P2 * 9.65 L
P2 = (5.80 / 9.65)
P2 = 0.6010 atm
Step 3: Convert pressure from atm to mm Hg
0.6010 atm * 760 mmHg = 456.76 mmHg
The new pressure is 456.76 mmHg
Answer:
Food source
Explanation:
Salmon are there food source
The concentration of the solution is also known as Molarity (M). The formula for molarity is
M = mol / liters
We already have the liters, so we only need to find moles. We can find the number of moles by using the molar mass of NaCl and the given amount. That can be found using the elements' atomic weights given on the periodic table.
22.990 (mass of Na) + 35.453 (mass of Chlorine) = 58.443 g / mol
That's how many grams are in one mole of NaCl, but we only have 2.5 grams. So, let's divide and see how many moles we have.
2.5 / 58.443 = .042776 moles
Now we can plug our numbers into the formula.
M = .02138 mols/L
So, your concentration is about .02 mol/L.