I have 4 moles of CO2. How many molecules of CO2 is this?

Why did people make salt from sea water instead of picking up the salt from the beach like Gandhi did?

How was the atomic theory improved by introducing atomic orbitals?

505 Kl expressed in liters

A copper block (20°C) is placed in contact with a lead block (30°C), which is already in contact with an iron block (70°C).

What is released when an excited electron returns to a lower energy state?

How are intermolecular forces different from the forces that bond atoms together into molecules? How are they similar?

Assuming a constant temperature which sample below would you expect to be at the highest pressure?

What is 16.7 cubic feet expressed in cubic centimeters

3. Using Equation 18-5 and the pKIn value you found, determine the ratio [In-]/[HIn] at the pH in the middle of the range you studied (i. e., pH = 6.0 for bromocresol purple, pH = 7.0 for bromothymol blue, and pH = 7.7 for phenol red).

Suppose you begin with 1.50~g of the hydrate copper (II) sulfate · x-hydrate (CuSO4· x H2O), where x is an integer. After dehydration you find that you are left with 0.96~g of the an-hydrate CuSO4. What is the unknown integer x.