Calculate the mass (in mg) of 9.85 x 1019 CCl2F2 molecules.

Q: Carbon tetrachloride has a chlorine-to-carbon mass ratio of 11.8:1 If a sample of carbon…

A: CCl4 is carbon tetrachloride. Mass ratio of Cl:C is 11.8:1  It means 11.8 g Cl per 1 g C

Q: Find the mass of 1 molecule of NaH in gram. O a. 3.98 x10-23 O b. 12 O c. 23.99 O d. 3.98 x1023

A: Molar mass amount(1 mole) of any compound contains Avogadro number6.022×1023 of molecules. Molar…

Q: hydrogen phosphide can be decomposed to give phosphorus and hydrogen in a mass ratio of 10.32:1.00.…

A: the molecular formula of this substance is PH3 and the name of this compound will be phosphine.

Q: The mass spectrum of an organic compound shows the relative abundances of M to be 58.98% and M + 1…

A: Given,Relative abundance of M+1=14.67%Relative abundance of M=58.98%Natural abundance of…

Q: b. 3.01 x 1023 atoms of Rubidium c. 8.08 x 1022 atoms of Krypton d. 2.997 x 1025 atoms of Vanadium

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: The atomic masses of 203Tl and 205Tl are 202.972320 and 204.974401 amu, respectively. Calculate the…

A: Let the isotope of Tl203 be x. Let the isotope of Tl205 be (1-x). Set up the equation.…

Q: You are working in the laboratory preparing sodium chloride. Consider the following results for…

A:

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: A compound is composed of phosphorus and hydrogen. The mass ratio is 10.2 g of phosphorus to 1.00 g…

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Q: . Suppose you have a sample of sodium weighing 14.50 g. What mass of potassium would you need to…

A: Atomic mass of sodium=23 Atomic mass of potassium=39 Number of mole=given mass/molar mass So,…

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

Q: Write the chemical formula for each compound, and then calculate the number of atoms of oxygen in…

A: a) Given, 84.15g of boron oxide Chemical formula of boron oxide is = B2O3 Therefore, the number of…

Q: 6. How many oxygen atoms are in 225 g oxygen gas? a. 4.23 x 104 C. 8.47 x 10:+ b. 6.84 x 10²4 d.…

A: The Given amount of oxygen gas O2 = 225 grams        the molar mass of O2 = 32 g/mol To calculate…

Q: How many hydrogen atoms are there in 8.75 g of C,H,NO,? Select one: a. 23 4.79x 10 b. 3.22x 1023 с.…

A: Given: Mass of C2H7NO2 = 8.75 g Molar mass of C2H7NO2 = 77.08 g/mol

Q: Find the mass of 1 molecule of NO in gram. а. 4.98 х1023 b. 30 C. 4.98 x10-23 d. 15

A: According to mole concept, mass of Avogadro number (6.022 × 1023) of molecules is equal to the molar…

Q: 8. Given what you know about the law of conservation of mass, fill in the missing mass below. D0.…

A: law of conservation mass said that mass is conserved during a reaction or any physical changes…

Q: How many grams of platinum (Pt) contain the same number of atoms as 5.0 g of lithium (Li)? О а. 0.18…

A: Given, Mass of lithium (Li) = 5.0 g Mass (in grams) of platinum (Pt) contain the same number of…

Q: Calculate the mass of one bromine atom. a. 6.022 x 1023 g O b.4 812 x 1025g O c. 1.327 × 10-22 g O…

A: Atomic mass is defined as the quantity of matter that is present in an atom of element.

Q: 35 1. The atomic masses of 17CI (75.53%) 37 and 17CI (24.47%) were 34.968 amu and 36.956 amu,…

A:

Q: Determine the empirical formula for a compound that contains 34.1 % nitrogen by mass and 65.9 %…

A: The question is based on the concept of elemental analysis. we have to calculate empirical formula…

Q: A 2.62 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.59 x 1022…

A: Given  (a)   Mass = 2.62 gram       Number of molecule of N2O  =  3.59 × 1022 molecule       Number…

Q: A 150.0 gram sample of a white powder contains 61.05 g of carbon, 7.65 g of hydrogen, and 81.30 g of…

A:

Q: A sample of ammonia has a mass of 96.3 g. How many molecules are in this sample? A. 5.65 molecules…

A: One mole of any substance consists of 6.022×1023 molecules. The number of moles of a substance can…

Q: Calculate the mass (in grams) of a tungsten atom. A. 1.107 x 10 - 26 B. 1.661 x 10 - 24 g C. 3.054 x…

A: Molar mass of tungsten = 183.84g/mol

Q: Find the mass of 1 molecule of NaH in gram. а. 23.99 b. 3.98 x1023 С. 12 d. 3.98 x10-23

A: Atomic mass of sodium (Na) and hydrogen (H) atoms are as follows; Atomic mass of Na = 22.99 g/mol…

Q: O 1.98 x 1022 atoms of lead

A:

Q: the formula for this batch of Epsom salts?

A: Mass percent of water in Epsom salt = 100 x Mass of water/Mass of Epsom salt Mass of Epsom salt =…

Q: How many moles of neon would there be in 7.59 x 1025 neon atoms?

A: Avogadro's number (N) = 6.022 x 1023 atoms/mole No of moles = No of atoms / N                    =…

Q: 1. Write the following compounds: a. Barium Selenide b. Magnesium phosphide c. Potassium nitride d.…

A:

Q: 1) What is the mass in grams of 6.86x10^23 atoms of manganese? 2)How many manganese atoms are there…

A: 1)  Number of moles of manganese = number of atoms (given) / number of atoms in 1 mole number of…

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1022…

A: Given that : The mass of N2O sample = 2.37 g Number of molecules of N2O = 3.24 x 1022

Q: calculate the number of atoms in 1.72 grams of barium

A:

Q: Determine the volume of a carbon sample that contains 2.40 x 1024 atoms and a density of 0.968g/cm3

A: We have given that  No.of atom of carbon = 2.40 × 1024 atom  Density of sample = 0.968g/cm3  Find…

Q: The atomic mass of titanium (Z = 22) is 47.87 amu. How many atoms are present in 45.5 g of titanium?…

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

Q: 9. How many hydrogen atoms are there in 500.0 L of water? (dH.0 = 1.00 g mL) %3D A: 3.34 x 1025 28

A: Given, the volume of water V =500.0 L =500000 mLdensity of water d =1.00 g .mL-1we are asked to…

Q: 1. Determine the number of atoms in 0.475 g of palladium (Pd). atoms 2. Determine the mass of 139…

A: One mole of any element contains approximately 6.022 x 1023 atoms of that element. Therefore, to…

Q: Using the average atomic masses for each of the following elements, calculate the mass (in amu) of…

A: Average atomic masses of the following species is as follows - Na = 22.9898 amu Li = 6.941 amu Mg =…

Q: A 1.58 mole sample of a pure unknown substance has a density of 1.87 g/cm3. If the sample occupies a…

A: Given,Density = 1.87 g/cm3Volume = 188 cm3Mole = 1.58 mole

Q: A sample of TNT, C7H5N3O6 , has 7.97 x 1021 nitrogen atoms. How many hydrogen atoms are there in…

A: The details solution for this is provided below in attach image.

Q: Mass Spectrum for Tin (Sn) 120 100 100 80 58 60 27 40 20 115 116 117 118 119 120 121 mass (amu) 8.…

A:

Q: he mass composition data for two compounds containing phosphorus and chlorine is shown below. Does…

A: we are given the composition of compound 1 and compound 2           PHOSPHORUS(P) CHLORINE(Cl)…

Q: What is the mass of 8 atoms of copper in grams? 8.44 x 10-22 g 1.33 × 10-23 g X 508 g 7.58 x 1022 g…

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Q: Calculate the mass of Na in 80.0 g NaCl. A. 31.5 g B. 6.2 g C. 40.0 g D. 1.9 g

A: molar mass of NaCl  =mass of Na +mass of Cl                                   =23+35.5…

Q: you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

A:

Q: 1)Describe the PHYSICAL PROPERTIES of the following substances? 2)Specifically, what type of…

A: Physical properties of following substances. 1. Halogen : Halogens are non metals. Fluorine and…

Q: Formula mass of H20 |(2Н atoms) * (1.01 ати)) + (10 atom) * (16.00 ати)] — 18. 02 ати Water (H2O)…

A: Solution :           Formula mass gives us the sum of the atomic weight of atoms in the formula unit…

Q: Calculate the mass of dinitrogen tetroxide N2O4 that contains a million ×1.000106 oxygen atoms.

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".