heheheh

What is the molarity of a solution which has a total volume of 100.0 mL and contains 5.8 g of NaCl? Note: was told the units when calculating concentration is mol for solute, litres for solvent, and mol/L for solution. Im just not sure if I convert first...

10g of CuCl2 and 15g of NH4OH (aq) are combined to form Cu(OH)2 and NH4Clsolid. Which is the limiting reactant?

what is the force diagram of the stairs when a person walks up the stairs at a constant rate?

If the molar ratio was 1:1 between the acid and base and the acid is 10 mL and the base is 8.3 mL, how do you find the molar concentration of the acid when only given this information?

is the inverse of f(x)= - √2(x+4) -8 (the 8 is not part of the square root) this: (x+8/-1)^2/2 -4 (the 4 is not part of the fraction)

An astronaut on the moon throws a wrench straight up at 4 0 m/s. Three seconds later it falls downwards at a velocity of 0.80 m/s. What is the final velocity when the wrench leaves the astronaut's hand. (its not 0m/s btw)

isolate for t x = u t + 1/2 a t^2

if an object falls at an acceleration of -9.8 m/s/s and is 0.15m above the ground, how long does it take to reach the ground (the time)?

Rearrange for g K = 2π / √g

What about the quiz ?

I found the # of moles for CuCl2 is 0.074 and for NH4OH is 0.429, and since its a ratio of 1:2 isn't CuCl2 the limiting and NH4OH the excess?

CORRECTION: what is the force diagram of your foot when walking up the stairs at a constant rate?

actually answers to both questions are appreciated