what is the solubility of Ag in water at 0 degrees celcius? what is it for calcium carbonate? and yellow brass?

silver, copper, and zinc are insoluble.

Limestone solubility in water (it changes the pH to alkaline) is very insoluble, but there is some solubility, but it is dependent on the partial pressure of carbon dioxide above the water. So solubility, as poor as it is, is dependent on CO2 above the water.

The solubility of silver (Ag) in water at 0 degrees Celsius is relatively low. Approximately 0.00088 grams of Ag can dissolve in 100 grams of water at this temperature.

As for calcium carbonate (CaCO3), its solubility in water at 0 degrees Celsius is even lower. Only about 0.0013 grams of CaCO3 can dissolve in 100 grams of water at this temperature.

Yellow brass typically contains varying amounts of copper (Cu) and zinc (Zn). The solubility of these elements in water at 0 degrees Celsius is very low. Copper has a solubility of around 0.000034 grams per 100 grams of water, while zinc has a solubility of about 0.000085 grams per 100 grams of water at this temperature. However, it's important to note that the solubility of brass as a whole may differ due to the presence of other elements in its composition.

To determine the solubility of a compound in water, we usually refer to the solubility product constant (Ksp). The Ksp is a measure of the equilibrium concentration of dissolved ions in a saturated solution.

1. Solubility of Silver (Ag) in Water:
To find the solubility of Ag (silver) in water at 0 degrees Celsius, you would need to know the Ksp value for silver. The Ksp for Ag can be calculated using its molar solubility (x) and the balanced chemical equation for its dissolution:

Ag(s) ⇌ Ag+(aq) + e^-

The equilibrium expression is:
Ksp = [Ag+][e^-]

At 0 degrees Celsius, the Ksp of Ag is approximately 1.5 x 10^-12 mol^2/L^2. This means that in a saturated solution at this temperature, the concentration of Ag+ ions would be approximately √(1.5 x 10^-12) = 3.9 x 10^-6 M.

2. Solubility of Calcium Carbonate (CaCO3) in Water:
CaCO3 is sparingly soluble in water. The solubility of CaCO3 can be determined using Ksp and stoichiometry.

CaCO3(s) ⇌ Ca^2+(aq) + CO3^2-(aq)

The equilibrium expression is:
Ksp = [Ca^2+][CO3^2-]

The Ksp value for CaCO3 is equal to about 4.8 x 10^-9 mol^2/L^2. However, at 0 degrees Celsius, the solubility is lower. The actual solubility depends on factors such as pH and the presence of other ions.

3. Solubility of Yellow Brass in Water:
Yellow Brass is an alloy consisting primarily of copper (Cu) and zinc (Zn). Since it is an alloy, it does not have a specific Ksp value like a compound. Therefore, we cannot directly determine its solubility using the Ksp concept. The solubility of yellow brass in water would depend on the reactivity of copper and zinc with water, which is relatively low. In general, yellow brass is not very soluble in water under normal conditions.

To summarize:
- The solubility of Ag in water at 0 degrees Celsius is approximately 3.9 x 10^-6 M.
- The solubility of CaCO3 in water depends on various factors, but the Ksp at 0 degrees Celsius is about 4.8 x 10^-9 mol^2/L^2.
- Yellow brass, being an alloy, does not have a specific solubility value but is generally considered to be insoluble in water.