2. The air in a flask is to be replaced with He gas in a way similar to how air is replaced in the experiment. Should the flask be (A) hold upside down, (B) hold upright, (C) either way or (D) not enough information to answer? Provide an explanation below, Molar mass of air is- 29 g/mol.

Q: 2. The hydrocarbon benzene combusts to give CO2 and water vapor, and the unbalanced equation is:…

A: Given as The weight of benzene=0.095 g The volume of flask=4.75 L Temperature =30oC=30+273=303 K

Q: Use the molar volume to calculate each of the following an STP. Calculate the volume, in liters,…

A: Given mass of O2 , W = 4.50 g Molecular mass of O2 , Mwt = 32 g/mol Moles of O2 , n = W ÷ Mwt = 4.50…

Q: A chemist must prepare 0.700 L of 1.00 M aqueous zinc nitrate (Zn(NO,),) working solution. He'll do…

A: Given: The concentration of the stock solution of zinc nitrate, (M1) = 6.12 mol/L=6.12 M. The…

Q: is i Periodic Table Part F State the volume at STP for 1 mol of hydrogen fluoride, HF. Express your…

A: Mole is the unit of measurement for amount of matter or substance.

Q: Fill in each blank below: A mole of any substance contains x 10 particles. One mole of any gas at…

A:

Q: Previous Page 3 of 5 E Next Ammonia gas can be prepared by the reaction of a metal oxide such as…

A:

Q: A gas is formed in the reaction shown below. The gas laws can help determine the volume of gas…

A:

Q: QUESTION 2 How many moles of gas are in each flask? (Hint 1 atm =760mmHg)? OA0.15 moles O B. 107.7…

A: Given,  Volume of gas = 3.0 L Temperature = 25°C  = 25+273 = 298 K Pressure = 878 mm Hg  Conversion…

Q: 1. What gas is being collected in today's experiment? 2. Balance the following reaction: H,O, (aq)…

A: Given that : The data from the two trials for the experiment is given below :

Q: How many grams of sodlum are required to completely react with 19.2 Lof Ci, gas at STP according to…

A: From the equation, we get that the number of moles of Na involved will be twice that of Cl.

Q: A chemist adds 0.50 L of a 1.2 mol/L aluminum chloride (AICI, solution to a reaction flask.…

A: Given, volume of solution = 0.50 L Concentration of aluminium chloride = 1.2 mol/L

Q: Question 9 A researcher is using 5.43 x1023 molecules of chlorine gas (Cl2) in an experiment. How…

A:

Q: A compound contains iron and bromine. A sample of the compound contains 6.371 g of iron and 10.991 g…

A:

Q: How many moles of NH, form when 32.4 Lof H gas completely reacts at STP according to the folowing…

A: For the given reaction: According to the given conditions: Therefore assume, It can be solved as:…

Q: Gas Stoichiometry Scenario #3 What mass (in grams) of sodium chloride (NaCl) will be produced when…

A: The given unbalanced reaction is as follows: Na+Cl2 → NaCl The balanced equation is as follows:…

Q: A chemist adds 0.30 L of a 1.7M nickel(II) chloride (NiCl,) solution to a reaction flask. Calculate…

A: Molar mass of NiCl2: 129.5994 g/mol. Given, Strength of the solution - 1.7 M Volume of the solution…

Q: How many moles of NaOH are in 13.39 mL of 1.38 M NaOH? Do NOT place the answer in scientific…

A:

Q: 0.460 mole of hydrogen gas has a volume of 750 ml at a certain temperature and pressure. What is the…

A: We have given that  No. of moles of hydrogen gas (n1) = 0.46 mole  Volume of hydrogen gas  (V1) =…

Q: The movie below shows some molecules in a tiny sample of a mixture of gases. key carbon hydrogen…

A: Step 1:  Does a chemical reaction happen during this movie Yes.  Step 2: • The balanced chemical…

Q: Determine the volume of O, (at STP) formed when 56.6 g of KCIO3 decomposes according to the…

A: Given: Mass=56.6 g Molar mass=122.55 g/mol At STP, Pressure= 1 atm Temperature=273 K The balanced…

Q: Calculate the number of grams of Ne contained in 41.0 L of Ne gas.

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: TERACTIVE EXAMPLE Calculating the Molar Mass of a Gas from P, V, and T Data You are trying to…

A: Given,the mass of the hydro fluorocarbon gas sample = 0.100 gpressure exerted by the gas = 73.5…

Q: Your answer is the correct unit symbol

A: 1 )The C4H9Cl is destroyed by the chemical reaction as its concentration decreases with time.2) The…

Q: Which of the following gas samples would have the largest volume, O 7x1023 molecules of O2 O 3.01…

A: Ideal gas law equation:- PV = nRT  Here P is pressure, V is volume, n is no. of moles of gas, R is…

Q: 21. Be able to solve one-step problems involving moles, mass, and number of particles, such as the…

A:

Q: None

A: Step 1 :For dilution,moles of solute= M1V1 = M2V2 Step 2:Initial molarity (M1)= 10.1 MInitial volume…

Q: Assuming the gas is at standard temperature and pressure, how many milliliters make up .073 moles of…

A:

Q: A chemist measures the amount of chlorine gas produced during an experiment. He finds that 11.0 g of…

A: Given,Mass of Chlorine gas = 11.0 gAtomic mass of Cl = 35.45 g/mol.

Q: 2. Briefly explain why it is essential that none of the yeast comes into contact with the H₂O2…

A: H2O2 should come into contact with yeast before the stoppers are firmly placed as the oxygen…

Q: Gaseous butane (CH,(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide…

A:

Q: 1) a) Calculate the number of moles of NO2 that are present in a sample that is made up of 3.74 x…

A: One mole of any gas at STP occupies 22.4 L One mole substance contain 6.023 x 1023 molecules

Q: A chemist adds 0.85 L of a 0.0632M barium chloride (BaCl, ) solution to a reaction flask. Calculate…

A: Given: The volume of BaCl2, (V) = 0.85 L. The molar concentration of BaCl2, (M) = 0.0632 M. The…

Q: help  please answer in text form with proper workings and explanation for each and every part and…

A: Solution stepsConvert mass of hydrogen to moles:Molar mass of H2 = 2 g/mol   Moles of H2 = mass /…

Q: sed to 10.0 L,

A: Dear student I have given answer to your question in the image format.