Which of the following gases consist of molecules containing four or more atoms? O Rn O NO O CO Ar Kr CO, Xe O H,S HF H, N2 so, O Ne HCN O O, O CI, O NO, O CH, O He O HCI S. O O

Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: Which one of the following is made up of formula units? O A. NazP O B. Mg OC.F2 D. CH4

A: Formula units :-  An ionic compound is made up of formula units. Ionic compounds consists oppositely…

Q: Cyclopropane is an interesting hydrocarbon. Instead of havingthree carbons in a row, the three…

A: (a) The empirical formula can be defined as the formula written in the simplest ration of the…

Q: Cyclopropane is an interesting hydrocarbon. Instead of havingthree carbons in a row, the three…

A: a.

Q: 2o dreps = I mi I drop=to mis0,08ML Mores H,u- Mass =05- a,77x103 MMall 18.02 Cle.088413 るってて。) If…

A: Given the number of water molecules to be lined up = 1.67*1021 molecules Given the distance of 1…

Q: Calculate the number of molecules in each of the following gases at STP. (a) 0.150 g of carbon…

A: Number of moles is the term which is used to express amount of a chemical compound in the mixture or…

Q: Write the chemical formula for this molecule: H. Н— С— В—F H F s ?

A: Chemical formula :- It is the way of represent of molecule or compound by writing the symbol of atom…

Q: CACO; ® CaO + CO, In the chemical reaction shown above, the products are best classified as- O Two…

A: Element is a pure substance and is made up of only one kind of atoms.

Q: Calculate the number of moles in sample. 25.2 kg C2H2

A: Mass of C2H2 in sample  25.2 kg Then molar mass of C2H2 is calculated Then by using mass and molar…

Q: In which of the following are the components NOT chemically combined? O unable to predict O compound…

A: Applying definition of mixture, compound and molecules.

Q: Imagine you mix 16.05 g of methane (CH4) gas and 96.00 g ofoxygen (O2) gas and then ignite the…

A: First order reaction is a reaction that proceeds at a rate that depends linearly on only one…

Q: At 136°C and atmospheric pressure, the density of this gaseous chloride is5.6 g L-1. Under the same…

A: The temperature in Kelvin is calculated as shown below.

Q: Which of the following is a mixture? O HCl (g) O C7H15CI (1) o Cl2 (g) o Cl2 (aq)

A:

Q: calculate the number of atoms of F in 32.5g of flourine gas, F2

A: Since moles of F2 = mass of F2 / molar mass of F2  molar mass of F2  = 38 g/mol Hence moles of F2  =…

Q: 5) Calculate the mass percent of chlorine for each compound listed. A. C6H6O3CI4 B. CF3C13

A: The answer to the following question is given as:

Q: formuia for tre feilcwing mcle cules Suppiy the missag what ere likeiy digit. Choose 1 FA tle…

A:

Q: Write the molecular and structural formulas for the compoundsrepresented by the following models:

A:

Q: 3. Name the following 1onic compounds. (a) Cal; (b) K;P (c) AIF; (d) Ag,S (e) Cs,CrO4

A:

Q: Question is attached

A: A mixture has at least two components, when they are mixed, there are two possibilities arise. One…

Q: 16. How many atoms are in one (molecule) formula unit of Fe2(CrO4)3?

A: Given -> Molecular formula = Fe2(CrO4)3

Q: What is the mass of 2.11x10^24 molecules of C2H6

A: Number of molecules of C2H6 = 2.11x1024 Molar mass of C2H6 is 30.07 g/mol

Q: In the ammonia (NH) molecule of the figure, the three hydrogen (H) atoms form an equilateral…

A: You can find the center of mass of the 3 Hs first, then find the center of mass between that point…

Q: An allotrope of elemental sulfur is the cyclic molecule S6 . Calculate the number of molecules and…

A: The number of molecules and moles are related to each other by the given relationship as; 1 mole =…

Q: The correct formula for a compound formed from the elements Al and O is O Al302 . AIO. O Al203 . O…

A: Q9) The compound formed from the elements Al and O is Aluminium (I) oxide, Al2O.

Q: What is the total mass of hydrogen in each of the molecules?(a) CH4(b) CHCl3(c) C12H10O6(d)…

A: Mass of an atom of hydrogen is 1 g/mol.

Q: Which of the formulas must be molecular formulas? O C̟H¸N,0 C,H¸O, CH,0 O PO РО 10

A: Emperical formula is that way representing the chemical fourmla in which elements are present in…

Q: liquid (C) Y. Which one of the following staternents iS correct abont Avogadro's law and its…

A: Answer  Q=7  Which of the following  statement is correct about Avogadro…

Q: H H НООС—С, — С, — соон HOOC-Č,-Č,-COOH но но ÓH

A: We have to use circle to indicate four different groups of Ca and square to indicate four different…

Q: Decide whether each pair of elements in the table below will form an lonic compound. If they will,…

A:

Q: 16. Which of these is not a molecular compound? 16. A. SO2 В. N-O C. ICla D. Al2S3 E. CH4

A:

Q: Is the number of atoms in 0.64 grams of helium gas equal to the number of atoms in how many grams of…

A: Solution stoichiometry involves the calculation of the concentration of solutions in the given…

Q: CH3 HBr a) ? Br NaOC,H5 / isi b) ? 1.NABH4 ? c) 2. Hао

A:

Q: Determine the empirical formula for C,H O. A) C,H,O B) C,HO C) C,H,O D) CHO E) C„HO,

A: The Empirical formula gives the combining ratio in its simplest form.

Q: Which of the following is an ionic compound? A) Cl2O B) PCl5 C) SCl2 D)CH2O E) MgCl2

A: To identify the ionic compound use the concept of condition of ionic bonding. Combination of metal…

Q: 7. A 0.45 g sample of aspirin is decomposed into its and found to contain 0.27 g C, 0.020 g H, and…

A:

Q: How many N atoms are in one formula unit of (NH₄)₂SO₄?

A: formula unit of (NH4)2SO4 1 mol = 6.022 × 1023  atoms

Q: Which of the following is a molecular compound?

A: a) Nacl -sodium chloride ionic  Na+/Cl-  b) NaoH -sodium hydroxide ionic Na+ /OH -  C)Fe PO4-  Iron…

Q: stion 23 of 23 Some of the formulas could be either molecular or empirical formulas; however, some…

A: Molecular formula is representation of actual number of atoms of each element present in that…

Q: 3.2*10^24 atoms O to molecules O3

A: A molecule is composed of two or more than two atoms. The number of molecule can be determined by…

Q: Calculate the mass % of all the atoms in the following molecule HgSO3

A: The molecular weight of HgSO3 = 200.6+32+3*16 = 200.6+32+48 = 280.6 gm/mol  In HgSO3 the no. of Hg,…

Q: Remember that the nitric acid in water is H'lao) and NOa ta). The brown gas evolved is an oxide of…

A: The solution is given below -

Q: Give one example each of a molecule in which empirical formulaand molecular formula are: (i) same…

A: i) Water → both molecular and empirical formula is H2O.

Q: Which of the following(s) are true? Select one or more: O a. Chlorofluorocarbons are natural…

A: When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone…

Q: Determine Δngasfor each of the following reactions:

A: The value of Δngas = (Sum of number of moles of gaseous products) – (Sum of number of moles of…

Q: Which one of the following is TRUE about AH°f for the substances given? a. AH°ffor Br2(e) = 0 b.…

A: Enthalpy of Formation - It is the reaction enthalpy of the compound in which the reaction takes…

Q: Al + Cu2+ → A13+ + Cu Explain why the above equation is not balanced. O Each side of the equation…

A: Given Al + Cu2+ -----> Al3+ + Cu

Q: TRUE or FALSE A mole is the amount of a substance that contains as many elemental entities as…

A: Ans. TRUE The value of the mole is equal to the number of atoms in exactly 12 grams of pure…

Q: Rank the following according to DECREASING number of S atoms: A. 31.0 g S8 B. 50.0 mL CS2 (density…

A: To rank them, first calculate number of S atoms in each case.