22 At 101.3 kPa and 298 K, a 1.0-mole sample of which compound absorbs the greatest amount of heat as the entire sample dissolves in water? (1) LiBr (3) NaOH

(2) NaCl (4) NH4Cl

In a constant-pressure calorimetry experiment, a reaction gives off 22.8 kJ of heat. The calorimeter contains 150 g of water, initially at 20.4°C. What is the final temperature of the water? The heat capacity of the calorimeter is negligibly small.

Imagine that water is leaking from a container, at a rate of 1.2 ml/hour. If this rate does not change, how many liters of water will be lost in a week?

37.5ml of menthol is dissolved in water to make 456 ml of solution, what is the concentration expressed in volume/volume % of the solute?

What do you mean by carbamate?

A chemical Chand occurs when a piece of wood? A. split b. is painted C. decays D. is cut

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used

When the name of a molecule ends in - ose, the molecule is a

How many moles are in. 12 grams of gold.

When lithium reacts with bromine to form the compound LiBr, each lithium atom: (1) gains one electron and becomes a negativelycharged ion (2) gains three electrons and becomes a negativelycharged ion (3) loses one electron and becomes a