This is true, you start at 270 bones at birth, which is hard to believe, because I thought the more younger, the more less they have. But hey, that wasn't true!
Dissolver is the answer i think because that is what disovling means
Answer:- 475 mL.
Solution:- It's based on Boyle's gas law. At constant temperature, "The volume of the gas is inversely proportional to the pressure."
Equation for this law is written as:
P and V stands for pressure and volume where as the subscripts 1 and 2 are for initial and final values.
Initial pressure is 6.20 atm and it asks to calculate the initial volume. Final pressure is 9.150 atm and the final volume is 322 mL.
Let's plug in the values in the equation and solve it for initial volume:
On dividing both sides by 6.20 atm:
= 475 mL
So, the originally the gas container volume was 475 mL.
NaBr gives fully seperated ions as Na⁺(aq) and Br⁻(aq) while AgBr gives partially dissociated ions as Ag⁺(aq) and Br⁻(aq).
NaBr(aq) →Na⁺(aq) + Br⁻(aq)
0.200 0.200
AgBr(s) ⇄ Ag⁺(aq) + Br⁻(aq)
Initial - -
Change -X +X +X
Equilibrium X X
Ksp = [Ag⁺(aq)] [ Br⁻(aq)]
7.7 × 10⁻¹³ = X * (0.200 + X)
7.7 × 10⁻¹³ = X² + 0.200X
0 = X² + 0.200X-7.7 × 10⁻¹³
X1 = 3.8 x 10⁻¹²
X2 = -0.2
X = molar solubility of AgBr.
hence, X cannot be a negative value.
molar solubility of AgBr is 3.8 x 10⁻¹² M.
Answer:
A Newman projection, useful in alkane stereochemistry, visualizes the conformation of a chemical bond from front to back, with the front atom represented by a dot and the back carbon as a circle. The front carbon atom is called proximal, while the back atom is called distal.