Some Basic Concepts of Chemistry Set-2

Q1: If the moles of the solute are cancelled out by the total number of moles, the resulting quantity is:

Q2: What is the standard $\text{SI}$ unit of time?

Q3: Which law states that equal volumes of gases at the same temperature and pressure should contain equal number of molecules?

Q4: How many moles of water are present in $180\text{ grams of water } (\text{H}_2\text{O})$?

Q5: How many molecules are present in $10\text{ moles of water}$?

Q6: If a solution contains $10\text{g of } \text{NaOH}$ (Molar Mass $= 40\text{ g/mol}$) dissolved in $100\text{g of water}$, what is the number of moles of $\text{NaOH}$?

Q7: If the molality of an aqueous solution is $1\text{m}$, what is the mass of the solvent (water)?

Q8: The volume of pure water required to have a mass of $1000\text{ grams}$ is: (Density $1\text{ g/mL}$)

Q9: The relationship used when mixing two solutions (A and B) of the same substance to find the final molarity ($M_F$) and final volume ($V_F$) is:

Q10: What is the molar mass of Copper Sulphate $(\text{CuSO}_4)$? (Atomic weight $\text{Cu} = 63.5, \text{ S} = 32, \text{ O} = 16$)