nat is the mass in mg of one billion water molecules? a. 1.09 x 1016 mg b. 2.99 x 10-14 mg C. 2.99 x 10-11 mg d. 2.99 x 10-17 mg

Q: Calculate the number of moles in each sample. a. 72.5 g CCI4 c. 25.2 kg C2H2 b. 12.4 g C12H22011 d.…

A: The number of moles of a substance is calculated by dividing the given mass of that substance with…

Q: How many molecules (units) are in 3.50 moles of H2SO4 ? Information that may be useful: H: mass…

A: From given  1 mole of H2SO4 contain avogadro number of molecules Then 3.50 mole of H2SO4 will have…

Q: 16. How many grams of water (18.02 g/mol) would contain 5.64 x 1024 hydrogen atoms? c. 84.4 g d.…

A: Given, Number of H atoms = 5.64*1024 atoms

Q: (f) number of O atoms in 6.25 x 10-3 mol Al(NO3)3

A: Total number of oxygen atom = 3.39×1022 atoms

Q: Determine the number of moles of H in each sample. 9.06 mol NH3 0.116 mol N2H4 34.0 mol C10H22

A:

Q: which contains the larger numbers of molecules 25.0 g HCI or 85.0 g C6H12O6

A:

Q: A compound was analyzed and the following results were obtained: • Molar mass: 270.4 g/mole • Mass…

A: The chemical formula of an unknown compound is determined by the percent by mass of the elements…

Q: 9.2 An unknown salt is found to contain 30,6% of water. The formula mass for anhydrous salt (AS) is…

A:

Q: Magnesium oxide contains 50.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Mass percent of an element expressed as the percentage ratio of mass of an element to the mass of a…

Q: determine the numbers of moles or molecules (or formula units) in each sample: A) 34.0 g sodium…

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

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: Data Table 1. Moles and Atoms in Common Items Item Aluminum Cup Glass Stirring Rod Cotton Ball A.…

A:

Q: x, x A 2 A- T Normal I No Spac... Heading 1 Heading 2 Title Font Paragraph Styles 5. Ca:(PO4)2…

A:

Q: The mol’s of Al2(SO4)3 that has 26 mol of S also has: 1 mol(Al2(SO4)3) ⇔ 3 mol(S) ⇔ 2 mol(Al) ⇔ 12…

A: Mole concept

Q: Convert all of the following to mol a)25.1 kg FeFe (NO3)2    b)0.5500 g C8H18   c)151 kg CaO…

A: From molecular weight we can calculate the no of moles and the no of molecules .

Q: Question3 part d

A: The formula of allicin is C6H10OS2 and the molar mass of this is 167.2716 g/mol.

Q: A 6.95-g sample of Barium Chlorate, Ba(ClO3)2, contains __________ mol of this compound.   a 31.8…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Determine the number of moles of H in each sample.(a) 4.67 mol H2O (b) 8.39 mol NH3(c) 0.117 mol…

A: Number of moles of a substance is the mass of substance present in a liter of solution.

Q: If you calculated the molar mass of your unknown liquid to be 70.1 g/mol, which of the following do…

A: Given-> Calculated molar mass of unknown liquid =70.1 gm/mole.

Q: Citric acid, C HO,, is found in many fruits How many H atoms are contained in 0.1g of citric acid…

A: Given data contains, Mass of citric acid is 0.1 g. Molar mass of citric acid is 192.124 g/mol. The…

Q: Determine the number of moles of oxygen atoms in each sample.a. 4.88 mol H2O2 b. 2.15 mol N2Oc.…

A: The mole is defined as the unit of measurement for the amount of substance that can be expressed in…

Q: How many grams of NaF are needed to form 485 g SF4? 3 SCI2 (1) + 4 NaF (s) → SF4 (g) + S2C12 (I) + 4…

A: Given that -  Balanced Chemical equation is -  3 SCl2 (l) + 4 NaF (s) ---> SF4 ( g) + S2Cl2 (l) +…

Q: present in the beaker? (hint: 1 mole Cl: 1 mole AgCl, 1 mole Cl: 1 mole NaCl, 1 mole Cl: 1 mole KCI)…

A:

Q: 9. Using the following reaction 2NaBr +CaF, →2NAF+ CaBr2 If 6 moles of CaF2 were added, what mass of…

A: Given  moles of CaF2 = 6 moles Molar mass of  CaBr2 = 199.9 gm/mole Mass of CaBr2= ?

Q: Calculate the number of moles in each sample.a. 72.5 g CCl4                            b. 12.4 g…

A: The number of moles is calculated as shown below.

Q: A 21.8 g sample of water contains how many water molecules? O 8.23 x 1023 molecules O 7.29 x 1023…

A: Here we have to calculate number of molecules of 21.8 gram of water sample-

Q: Calculate the number of molecules of iodine in a 4.62×105 g sample of iodine

A: Molar mass of I2 = 253.8g 1 mol of I2 = 253.8 g iodine 1 mol iodine = 6.022×1023 molecules of…

Q: Analysis of a 39.8 g sample of water revealed a mass percent for lead of 4.87%. Calculate the number…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: Formaldehyde has the formula CH20. How many molecules are there in 0.11 g of formaldehyde. At. wt. C…

A: A multiple choice question based on mole concept, which is to be accomplished.

Q: 6) 8.31 x 10 atoms magnesium (8.31X1024)(1) /6.02x1023-13.8mol 7) 4.52 x 10ª formula units NaCl 8)…

A: This problem can be solved by knowing that one mole consists of 6.022×1023 particles.

Q: Magnesium oxide contains 60.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Given,Mass percent of magnesium in magnesium oxide = 60.3%.Mass of magnesium in sample = 20.5g.

Q: The density of the 99.8 ml solution is 1,093 g/ml and it contains 12% KI by mass. This solution is…

A:

Q: 10.91 9/mol 2) KOHH 3) BeCla )CI = a(35 45)= 0.91 g /mol 5) Big 2CF lir keti l-15-aa

A: 3.Molar mass of BeCl2  Be mass = 9.012 g/mol        Cl mass = 35.5g/mol BeCl2 = 9.012 + (2×35.5) =…

Q: Calculate the molar mass of a volatile liquid whose mass is 0.46 g. The mass is obtained after a…

A:

Q: How many sodium ions are present in 20.0 mL of 0.10 M Na,S? A. 0.002 В. О.004 С. 1.20 х 1021 D. 2.41…

A: Given  Volume = 20 mL               = 20 × 10-3 Liter           ( 1 mL = 10-3  Liter )…

Q: 4.00 moles of carbon have a mass of? a. 4.60 g b. 23.0 g c. 92.0 g d. 11.0 g e. 48.0 g

A: The molar mass of carbon=12 g/mol The given number of moles of Carbon=4.0 mol

Q: The formula of cupric sulfate is? A. Cu(SO4)2 B. CuSO3 C. CuSO4 D. Cu(SO3)2 Q2: A silicon chip has a…

A: Cupric means copper in +2 oxidation state and the chemical formula of sulphate ion is SO42-

Q: How many moles of Hydrogen (H) are present in 9.8g of the hydronium molecule (H30*) 5.9mol 19mol…

A:

Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Element Molar mass (g/mol) F 19.00 Sr 87.62 Using the information in the table, calculate the number…

A: In this question, we want to determine the number of formula unit of SrF2 Compound.  You can see…

Q: them from smallest to largest by mass. 0.75 mol H20(liq) 7.0 g N2(g) 0.55 mol Ar(g) 0.45 mol N2(g)

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Calculate the equilibrium constant for each reaction using the balanced chemical equations and the…

A: The ratio of products and reactants raised to the power of their respective coefficients in a…

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A: Interpretation -  To determine the number of moles in each sample - 38.2g of sodium chloride  36.5g…

Q: 24.3 g He = ____________ mol He

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A: Mass ratio of Na/Cl in 10 gram of NaCl Molecular weight = 58.44 (g/mole) Atomic weight of Na = 23.99…

Q: Moles of  water in copper (II) sulfate n hydrate? Mass of copper (II) sulfate n hydrate= 4.738g…

A: Hydrated salt is salt which is  having water in their crystals and anhydrated  salt is salt  where…

Q: For items 1 and 2: 4NH3 + 302 6H2O + 2N2 1. What is the mole ratio of NH3 to H2O? 2. What is the…

A:

Q: Calculate the number of moles of fluorine atoms in 61.7 mL of CHClF2 (density=1.49 g/mL)

A: Mass of CHClF2 is calculated as follows:

Q: Which of the following contains the largest number of atoms? Select one: a. 1.0 mol of water (H2O)…

A: The numbers of atoms present in any substance can be calculated by help of Avogadro's Number. One…