PV=nRT
n = mole = 2.1 g : 32 g/mole = 0.065
T = 13 + 273 = 286 K
V = nRT/P
V = (0.065 x 0.08205 x 286)/0.1
V = 15.253 L
Explanation:
molarity=no. of moles of solute/solution in litres
6.17M=no. of moles of solute/9.4 L
6.17×9.4=no. of moles of solute
57.9 =no. of moles of potassium fluoride KF
no. of moles=given mass /molar mass
57.9=given mass/58
3358.2 g
Answer: 1.2 Moles of Nickel
Explanation:
So you have to transfer grams to moles.
You do this by dividing your beginning mass by the atomic mass of the element (found on the periodic table).
1 mole is equal to the atomic mass of the element. The atomic mass of Nickel is 58.6934 rounded to the proper significant figures will be 59.
72 Grams Nickel / 59 grams = 1.2 moles of Nickel
Answer:
b,c,f,g
Explanation:
it makes the most sense plus i just took the test <3 good luck
Answer:
D = 4 g/mL
General Formulas and Concepts:
Density = Mass over Volume
Explanation:
<u>Step 1: Define</u>
m = 100 g
V = 25 mL
D = unknown
<u>Step 2: Find D</u>
- Substitute: D = 100 g/25 mL
- Evaluate: D = 4 g/mL
