(a) Caustic potash:
The chemical formula for caustic potash is KOH. To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of potassium (K) is 39.1 g/mol, the atomic mass of oxygen (O) is 16.0 g/mol, and the atomic mass of hydrogen (H) is 1.0 g/mol.

So, the molecular mass of caustic potash (KOH) can be calculated as follows:
Molecular mass = (atomic mass of K) + (atomic mass of O) + (atomic mass of H)
= (39.1 g/mol) + (16.0 g/mol) + (1.0 g/mol)
= 56.1 g/mol

Therefore, the molecular mass of caustic potash is 56.1 g/mol.

(b) Baking powder:
Baking powder is a mixture of different compounds, but the main component is sodium bicarbonate (NaHCO3). To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of sodium (Na) is 23.0 g/mol, the atomic mass of hydrogen (H) is 1.0 g/mol, the atomic mass of carbon (C) is 12.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of baking powder (NaHCO3) can be calculated as follows:
Molecular mass = (atomic mass of Na) + (atomic mass of H) + (atomic mass of C) + (3 * atomic mass of O)
= (23.0 g/mol) + (1.0 g/mol) + (12.0 g/mol) + (3 * 16.0 g/mol)
= 84.0 g/mol

Therefore, the molecular mass of baking powder is 84.0 g/mol.

(c) Limestone:
Limestone is mainly composed of calcium carbonate (CaCO3). To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of calcium (Ca) is 40.1 g/mol, the atomic mass of carbon (C) is 12.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of limestone (CaCO3) can be calculated as follows:
Molecular mass = (atomic mass of Ca) + (atomic mass of C) + (3 * atomic mass of O)
= (40.1 g/mol) + (12.0 g/mol) + (3 * 16.0 g/mol)
= 100.1 g/mol

Therefore, the molecular mass of limestone is 100.1 g/mol.

(d) Ethanol:
The chemical formula for ethanol is C2H5OH. To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of carbon (C) is 12.0 g/mol, the atomic mass of hydrogen (H) is 1.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of ethanol (C2H5OH) can be calculated as follows:
Molecular mass = (2 * atomic mass of C) + (6 * atomic mass of H) + (atomic mass of O)
= (2 * 12.0 g/mol) + (6 * 1.0 g/mol) + (16.0 g/mol)
= 46.0 g/mol

Therefore, the molecular mass of ethanol is 46.0 g/mol.

(e) Common:
I'm sorry, but "common" is not a specific compound or substance. Could you please provide more information or specify the compound you are referring to?

Question

(a) Caustic potash:
The chemical formula for caustic potash is KOH. To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of potassium (K) is 39.1 g/mol, the atomic mass of oxygen (O) is 16.0 g/mol, and the atomic mass of hydrogen (H) is 1.0 g/mol.

So, the molecular mass of caustic potash (KOH) can be calculated as follows:
Molecular mass = (atomic mass of K) + (atomic mass of O) + (atomic mass of H)
               = (39.1 g/mol) + (16.0 g/mol) + (1.0 g/mol)
               = 56.1 g/mol

Therefore, the molecular mass of caustic potash is 56.1 g/mol.

(b) Baking powder:
Baking powder is a mixture of different compounds, but the main component is sodium bicarbonate (NaHCO3). To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of sodium (Na) is 23.0 g/mol, the atomic mass of hydrogen (H) is 1.0 g/mol, the atomic mass of carbon (C) is 12.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of baking powder (NaHCO3) can be calculated as follows:
Molecular mass = (atomic mass of Na) + (atomic mass of H) + (atomic mass of C) + (3 * atomic mass of O)
               = (23.0 g/mol) + (1.0 g/mol) + (12.0 g/mol) + (3 * 16.0 g/mol)
               = 84.0 g/mol

Therefore, the molecular mass of baking powder is 84.0 g/mol.

(c) Limestone:
Limestone is mainly composed of calcium carbonate (CaCO3). To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of calcium (Ca) is 40.1 g/mol, the atomic mass of carbon (C) is 12.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of limestone (CaCO3) can be calculated as follows:
Molecular mass = (atomic mass of Ca) + (atomic mass of C) + (3 * atomic mass of O)
               = (40.1 g/mol) + (12.0 g/mol) + (3 * 16.0 g/mol)
               = 100.1 g/mol

Therefore, the molecular mass of limestone is 100.1 g/mol.

(d) Ethanol:
The chemical formula for ethanol is C2H5OH. To calculate the molecular mass, we need to find the atomic masses of each element in the formula. The atomic mass of carbon (C) is 12.0 g/mol, the atomic mass of hydrogen (H) is 1.0 g/mol, and the atomic mass of oxygen (O) is 16.0 g/mol.

So, the molecular mass of ethanol (C2H5OH) can be calculated as follows:
Molecular mass = (2 * atomic mass of C) + (6 * atomic mass of H) + (atomic mass of O)
               = (2 * 12.0 g/mol) + (6 * 1.0 g/mol) + (16.0 g/mol)
               = 46.0 g/mol

Therefore, the molecular mass of ethanol is 46.0 g/mol.

(e) Common:
I'm sorry, but "common" is not a specific compound or substance. Could you please provide more information or specify the compound you are referring to?

Knowee AI · Accepted Answer