Answer:
-2
Explanation:
Consider object is starting 12 units right from the reference point which is 0.
Assign the right direction positive sign.
when object is moving 14 units on left direction the position of object will be two units to the left side of reference point.
Assign the left direction negative sign position will be -2.
Hey there!
Ba(NO₃)₂
Ba: 1 x 137.327 = 137.327
N: 2 x 14.007 = 28.014
O: 6 x 16 = 96
-----------------------------------
261.341 g/mol
The molar mass of Ba(NO₃)₂ is 261.341 g/mol.
Hope this helps!
Answer:
7,1x10⁻⁵M = [OH⁻]
Explanation:
pH is the -log of hydronium ion. pOH is -log of hydroxide ion. Knowing pH + pOH = 14:
14 = 9,85 + pOH
pOH = 14 - 9,85
pOH = 4,15
-log [OH⁻] = 4,15
10^-4,15 = [OH⁻]
<em>7,1x10⁻⁵M = [OH⁻]</em>
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I hope it helps!
Answer:
The volume of the balloon would be 374 L.
Explanation:
Initially, He occuplies a volume of 17.0 L (V₁) at a pressure of 22.0 atm (P₁). If pressure decreases to 1.00 atm (P₂), volume is expected to increase. Assuming ideal behavior of the gas and constant temperature, we can calculate the final volume (V₂) using Boyle's Law.
