The bottom of a box has a surface area of 2.50 m2. The mass of the box is 51.5 kg. Acceleration due to gravity at sea level is 9.80 m/s2. What is the pressure exerted by the box where it rests? 20.2 Pa

131 Pa

4.76 Pa

202 Pa

What is the gram formula mass of Ca (OH) 2

The alimentary canal consists of the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. a. True b. False

The second-order rate constant for the reaction A + 2 B - >C + D is 0.34 dm' mo1·• s'. / /'hat is the concentration of C after (i) 20s, (ii) 15 mi n when the reactants are mixed with initial concentrations of [A] = 0.027 mol dm • 1 and [BJ = 0.

What is the hydroxyl ion concentration of an orange juice that has a pH of 2.0?

Calculate the standard potential, e°, for this reaction from its equilibrium constant at 298 k. 6.47 x 10^5

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?