i need help with this lab

Please help me do the calculations 1-9 based on the observations in the table.

Procedure: 1. Put on safety goggles. 2. Record the barometric pressure of the room. 3. Immerse the lighter in the room temperature water, sheke it dry and toke a minute in an attempt to dry if as thoroughly os possible. 4. Record the mass of the lighter. 5. Submerge the graduated cylinder and remove all the air. 6. Place the lighter under the open end of the graduated cylinder ond depress the lighter to release the butane. 7. Collect approximately 6070mL of the gas, Record the temperature of the water. 8. Line up the two water levels (of the trough and graduated cylinder) and record the volume. 9. Remove the lighter from the water, shake it dry and take a minute to dry it thoroughly before taking its mass. 1. Give the physical properties of butane gas. 2. Is butane water soluble? How do you know? Calculations 1. Butane has a generic formula CnH2m+2, if n=4 give its molecular formula. 2. Determine the molar mass of butane. 3. Using the mass of butane gos collected, determine the number of moles of gas. 4. Calculate the pressure of the dry butane gas using Dalton's Law of Partial Pressure, 5. Using the ideal gas equation, determine the number of moles of gas. 6. Convert the volume of gas collected into a volume at STP (in L). (Hint: use the dry butane gas when recording the pressure) 7. Using your data, calculate the molar volume of butane gas at STP (L/mol). This calculation should be done twice, one for each method you used to calculate moles. 8. Assuming 22.4L/mol is the theoretical value for molar volume, determine which method (n=m/MM or n= PV/RT ) is better at determining moles of butane. 9. Calculate the percentage error for each method of determining moles (22.4L/mol is the theoretical value). Purpose: To determine the stardard molar volume of a gas af STP. To compare two methods used to determine the number of moles. Procedure: 1. Put on safety goggles. 2. Record the barometric pressure of the room. 3. Immerse the lighter in the room temperature water, shake it dry and take a minute in an ottempt to dry it as theroughly as possible. 4. Record the mass of the lighter. 5. Submerge the graduated cylinder and remove all the air. 6. Place the lighter under the open end of the graduated cylinder and depress the lighter to release the butane. 7. Collect approximately 6070mL of the gas. Record the temperature of the water. 8. Line up the two water levels (of the trough and graduated cylinder) and record the volume. 9. Remove the lighter from the water, shake it dry and take a minute to dry it thoroughly before taking its mass