Which celestial object is found in the Kuiper Belt?

a) Mars

b) Pluto

c) Saturn

d) uranus

A 52.0-mL volume of 0.35 M CH3COOH (Ka=1.8*10-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 23.0 mL of NaOH.

Substance a has a mass of 8 grams with a volume of 10 mL what is the density of substance A

Given the standard enthalpy changes for the following two reactions: (1) 2C (s) + 2H2 (g) C2H4 (g) ... ΔH° = 52.3 kJ (2) 2C (s) + 3H2 (g) C2H6 (g) ... ΔH° = - 84.

What element in what group and period shares the same physical and chemical properties as chlorine

Find the separation of the 14n and 15n isotopes at the detector. express your answer with the appropriate units.

If a nitrogen atom has a - 3 net charge, how many electrons does it have?

Calculate the pH of lemon juice to three significant figures, with a hydrogen ion concentration of 2.12 x 10^-3 mol dm^-3

If the Kb of a weak base is 4.6 * 10-6, what is the pH of a 0.32 M solution of this base?

What mass in grams of ethylene oxide is needed to react with 18 g of water?

Consider two gases, A and B, are in a container at room temperature. What effect will the following changes have on the rate of the reaction between these gases? The temperature is decreased at a constant volume.