Question

An unknown gas has a density of 2.77g/L at STP. What is the molecular weight (in g/mol) of this unknown gas?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Ideal gases

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: A 9.41-g piece of platinum was heated to 98.6 °C in a boiling water bath and then dropped onto ice. ...

A: Given information:Mass of piece of platinum = 9.41 gMass of ice = 0.36 gBoiling temperature = 98.6 ˚...

Q: The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305...

A: Energy needed to raise the temperature is given by:

Q: Curved arrows are provided for the following transformation. Identify the products of the transforma...

A: As in the given chemical structure, the arrow showed that lone pair of  oxygen atom shift towards al...

Q: 34. The enthalpy of vaporization for N2(1) is 5.56 kJ/mol. How much heat (in J) is required to produ...

A: Number of moles can be calculated as shown below:

Q: how do i write the net ionic equation for Ca(NO3)2(aq) + NaOH(aq)?

A: A molecular equation can be called as a balanced chemical equation which can be used to express the ...

Q: 2. A balloon is partialy inflated with 6.00 L of hydrogen at sea level, where the atmospheric pressu...

A: Given:Initial Volume V1 = 6.00 L.Initial Pressure P1 = 1.00 atm.Final Pressure P2 = 0.80 atm.Tempera...

Q: How do i find the oxidation state of Cr2+ ?

A: Oxidation number is the total number of electrons in an atom after losing or gaining electrons to ma...

Q: Given the following elements: Si, Sr, Cu, Ti, S (a) which of those elements would have the larget at...

A: Si belongs to Group 14 and period 3.Sr belongs to Group 2 and period 5.Cu and Ti are transition meta...

Q: A Lewis structure with placeholder central atom is shown below. If the charge of the molecule is -1,...

A: Given information:The Lewis structure of unknown molecule is represented as follows:

Q: How much of a 24 gram sample of radium 226 will remain unchanged at the end of three half life perio...

A: Given, sample of radium-226 has mass of 24 gram.

Q: Show the mechanism: 1-Butene (C4H8)---> Butanone (C4H8O)

A: A chemical reaction is symbolic representation of the conversion of substances to new substances.In ...

Q: Determine whether aqueous solutions of the following salts are acidic, basic, or neutral: (a) KBr (b...

A: Whether the aqueous solutions of the following salts are acidic, basic, or neutral is to be determin...

Q: 14. predict the product(s) of the following reaction

A: The given reaction is a ring-opening of epoxide. NaSH is a good nucleophile and hence, SH- attacks t...

Q: 2. Determine the formula of the parent acid resulting from the hydration (addition of water) of each...

A: The parent acid of sulfur dioxide is sulfurous acid.The parent acid of B2O3 is Boric acid.

Q: What is the molarity of 215 mL of solution containing 168 mmol of glucose?

A: As per the data given in the question,Volume of glucose solution = 215 mL = 0.215 L (as 1 mL = 10-3 ...

Q: how could you distinguish between cyclohexane and cyclohexene using IR?

A: Both cyclohexane and cyclohexene  are cyclic compounds.  Cyclohexane contains only single bond while...

Q: 10.26 A fixed quantity of gas at 21 C exhibits a pressure of 752 torr and occupies a volume of 5.12 ...

A: Given:Initial Volume V1 = 5.12 L.Initial Pressure P1 = 752 torr = 0.9895 atmTemperature does not cha...

Q: Use the molar constant volume heat capacities for gases given in Topic 4C (as multiples for R) to es...

A: The change in enthalpy (ΔH) of each reactant and product is calculated using equation (1). The molar...

Q: What is the formula weight (in amu) for ammonia, NH3?

A: Formula weight:The Total sum of atomic weight of all the elements present in the chemical formula is...

Q: redraw acrolein drawing using sigma and pi orbitals rather than simple lines for bonds

A: Acrolein is an unsaturated aldehyde. The structure of acrolein is given below.

Q: A 25.0-mL sample of 0.125 M pyridine is titrated with 0.100 MHCl.  a.) Calculate the pH at equivalen...

A: (a)At the equivalence point, the number of mole of base present is equal to the number of mole of th...

Q: Liquid oxygen and liquid nitrogen behave differently in a magnetic field. Match the picture below wi...

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter, ...

Q: A paper chromatography experiment with metal ions gave the following Rf values: Ni2 = 0.34, Fe3+ = 0...

A: A paper chromatography experiment with metal ions gave the following Rf values: Ni2+ = 0.34, Fe3+ = ...

Q: What is the total pressure in mmHg of a gas mixture containing: 0.25 atm of argon, 350 mmHg of He, a...

A: Given:Pressure of He = 350 mmHg = 0.4605 atmPressure of Ar = 0.25 atm.Pressure of N2 = 0.47368421 at...

Q: The rate of consumption of B in the reaction A + 3B --> C +2D is 2.7 mol dm-3s-1. State the react...

A: Click to see the answer

Q: What volume of 0.923 M HCl , in milliliters, is required to titrate 1.10 g of NaOH to the equivalenc...

A: The number of moles for a given compound can be called as the ratio of the mass to that of molecular...

Q: When 15.0 mL of a 6.64x104 M potassium hydroxide solution is combined with 15.0 mL of a 3.84x104 M a...

A: We are authorized to answer one question at a time, since you have not mentioned which question you ...

Q: How to answer question 4?

A: The mass of hydroxyapatite dissolves in 0.250L of water is calculated as,

Q: A gas that is produced when fruit ripens contain 85.62% C and 14.38% H by mass. The molecular mass w...

A: Click to see the answer

Q: For each of the reactions below, classify as a combination, decomposition, single replacement, or do...

A: The given reaction is to be classified as a combination, decomposition, single replacement, or doubl...

Q: The catalytic decomposition of hydrogen peroxide can be expressed as: H202(aq) H20(I) O2(g) What are...

A: Given that,

Q: For the following reaction, determine the number of electrons transferred. If the reaction is not a ...

A: The given reaction is not a redox reaction.

Q: The electron configurations for four main-group elements are given. Match the electron configuration...

A: The electronic configurations for the 4 given main group elements has to be matched with their Lewis...

Q: Complete the following equation for the preparation of this new element:?+24998Cf→294118Og+310n

A: Given,? + 24998Cf → 294118Og + 310nThe element symbol, atomic number and mass number can be written ...

Q: 5. The change in entropy for condensing 51 g ammonia (NH3()NH3) at its boiling point (240K) is 293 J...

A: The mass of ammonia given = 51gThe entropy given = 293J/K

Q: How will an increase in temperature affect each of the following equilibria? How will a decrease in ...

A: le chatelier principle:It states that if a dynamic equilibrium is disturbed by changing the conditio...

Q: A saturated solution of an unknown solid reacted with AgNO3 to give a pale yellow precipitate and al...

A: The anion is reacting with AgNO3 gives pale yellow precipitate, therefor the compound might be silve...

Q: A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas...

A: Given:Initial Moles of gas = 2.10 Initial Volume  =  46.0 L Leaked Moles = 0.700                 Wha...

Q: For a weak acid (CH3COOH) that is titrated with a strong base (NaOH), what species (ions/ molecules)...

A: The stoichiometric point is also known as the equivalence point. It is the point when the complete a...

Q: May I have an explanation for how you know which atom at the chiral center is wedged or dashed for b...

A: According to Cahn-Ingold-Prelog (CIP) system,The group attached to asymmetric center should be ranke...

Q: Iodine 125 emits gamma rays when it decays to Tellerium 125 and has a half life of 60 days. It a 0.0...

A: The rate constant  for half life of 60 days is calculated as,

Q: The pH value of a solution is 9.00. What is the concentration of the hydronium ion?

A: Given:PH = 9.00

Q: Compare the structure of a soap molecule to a phospholipid and explain why a soap's polar head is sm...

A: Hydrophilic polar group of soaps have less number of atoms than hydrophilic region of phospholipids....

Q: 10.86 As discussed in the "Chemistry Put to Work" box in Sec- tion 10.8, enriched uranium can be pro...

A: Graham’s law of diffusion states that the diffusion of a gas the constant conditions of temperature ...

Q: For the following reaction in aqueous solution, identify all those species that will be spectator io...

A: Given chemical reaction:

Q: Formula for  Mg2+  + CO32

A: A chemical compound consists of two or more different elements which are bonded with each other thro...

Q: Metals with body-centered cubic (bcc) structures, such as vanadium, are not close packed. If they we...

A: The density equations for bcc and ccp structures are as follows,

Q: What is the mechanism behind this question?

A: A chemical reaction mechanism represents the way to form and break the chemical bonds between molecu...

Q: Use the activity series to determine whether aluminum would replace the metals in the chemical compo...

A: The activity series is a series of metals in the order of  higher to lower reactivity. This order is...

Q: Calculate the w/v percentage of each of these solutes: A. 623 mg of casein in 15 mL of milk B. 74 mg...

A: Part-a: 623 mg of casein in 15 mL of milk Formula to calculate w/v percentage :w/v percentage = mass...