Calculate the mass, in grams, for each of the following: 14.0 moles of HeHe Express your answer using three significant figures.

Q: Using the equation below, convert 35.61 grams of NaClO3 to grams of oxygen gas (O2). Round your…

A: The given reaction is, 2NaClO3 ---> 2NaCl + 3O2 From the given reaction we can conclude that 2mol…

Q: An oxygen atom has a mass of 2.66 × 10 - 23 g and a glass of water has a mass of 0.050 kg. Use this…

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

Q: Calculate the mass, in grams, for each of the following:  A. 1.55 moles of KK Express your answer…

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Q: MISSED THIS? Read Section 3.8 (Pages 111 - 113); Watch IWE 3.13. 19.5 g O2 How many molecules are in…

A: 4 numerical problems about finding the number of molecules, which are to accomplished.

Q: Information for Parts B, C, and D A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a…

A: Given, Mass of sample of the compound = 100 g Percentage of of each element in the sample of…

Q: Calculate the mass in grams of each sample. 3.2×1022 SO2 molecules Express your answer using two…

A: Number of SO2 molecules is given as 3.2*1022, whose mass is to be determined.

Q: Calculate the mass in grams of each sample 4.2×1025 O3 molecules Express your answer using two…

A: As we know, Mass = Number of moles x molar mass Molar mass of O3 = 48g/mol

Q: 9. How many moles are there in 45.0 grams of sulfuric acid, H2SO4? moles Your answer should be…

A: 1 mole of H2SO4 contains 98.079 g. In other words, molar mass of H2SO4 is 98.079 g/mol.

Q: The number of particles in 1 mole of hydrogen gas is __________. Express your answer using three…

A: Given : Moles of Hydrogen gas i.e H2 gas = 1 mol.

Q: Calculate the number of grams of AICI3 in 1.25 miles of AICI3.

A:

Q: Calculate the mass in grams of each sample. Express your answer using three significant figures.…

A: The molar mass of methane (CH4) is 16 g/mol. It explains as 1 mole of CH4 molecules will have 16 g…

Q: there are 4 grams of hydrogen, how many hydrogen atoms are there? Without rounding anything until…

A: 1 mol of any substance has  6.023 ×1023 number of substances.  Thus 1 mol of any  atom has 6.023 ×…

Q: How many molecules are in each sample? A. 2.8g H2O (Express your answer using two significant…

A: Given  (a)   Mass of H2O   = 2.8 gram         Number of molecule = ?  (b)  mass of N2 = 40.8 gram…

Q: How many items are contained in one mole of (a) baseballs; (b) planes; (c) oranges; (d) H,0…

A: Mole concept:- the mole is one of the seven base units defined in the SI system of units and…

Q: Calculate the molar mass of the compound. Round your answer to 3 significant digits

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: The (15-15-15) number on a bag of fertilizer is calculated by an outdated method.  All modern…

A: (15-15-15) means: 15 % nitrogen content. 15 % P2O5 content. 15 % K2O content.

Q: calculate the mass of fluorine contained in 56.5 g of copper(II) fluoride.

A: Percent by mass (%w/w) = (mass of F/mass of CuF2) × 100%

Q: Aspirin contains 9 atoms of carbon, 8 atoms of hydrogen and 4 atoms of oxygen. The chemical formula…

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Q: Be sure to answer all parts. (a) Calculate the number of oxygen molecules and the number of oxygen…

A: 1- First Calculate the moles of O2 Molecules :  moles of O2 = ( mass / molar mass of O2 )  moles of…

Q: 5. Determine the number of moles of the compound and determine the number of moles of each type of…

A: Applying concept of mole calculation.

Q: Number of molecules in 9×10−6 molmol CH3CH2OHCH3CH2OH. Express your answer using four significant…

A: No. of moles of CH3CH2OH = 9×10-6 No. of molecules in 9×10-6 moles of  CH3CH2OH can be calculated as…

Q: Calculate the number of carbon atoms in 1.75 g of table sugar, C12H22O11 Express your answer using…

A: mole = (given mass ÷ molecular mass) Molecular mass of sugar C12H22O11 = 342g

Q: Calculate the mass in grams of each sample 5.20×1020 H2O2 molecules

A: Molar mass of any compound is the mass of that compound in which Avogadro's no. of molecules are…

Q: How many molecules are in the sample? 51.8 gg N2N2 Express your answer using three significant…

A: Given mass of sample (N2) = 51.8 g  Molar mass of N2 = 28 g/mol Calculation for number of moles :…

Q: Calculate the number of carbon atoms in 2.73 g of table sugar, C12H22O11. Express your answer using…

A: One moles of table sugar contains 12 number of CarbonsMolar mass of Carbon is 12.0107Molar mass of…

Q: 39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140…

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Q: Calculate the number of grams in the following 0.84 mole of 2-propanol, C3H8O, rubbing alcohol. Must…

A: given : 0.84 mole of 2-propanol, C3H8O, rubbing alcohol

Q: How many oxygen atoms are in 5.23 x 10 grams LİHSO3? Hint: must use Avogadro's number Put your…

A: The given data is as follows:        The mass of LiHSO3 = 5.23×10-7  grams The value of Avogadro's…

Q: 1.20 moles of NaNa Express your answer with the appropriate units. Calculate the mass, in grams, for…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: How many atoms are there in each of the following substances? 1.88 g Bi Express your answer using…

A: Calculate number of atoms in each element given--

Q: Part A.Calculate the percent carbon in fructose, C6H12O6 Express your answer are using to decimal…

A: Answer :-  A) The percent Carbon in Fructose, C6H12O6 =  40.00%  B) The percent Hydrogen in…

Q: A raindrop has a mass of 50.mg and the Pacific Ocean has a mass of 7.08e20kg. Use this information…

A: Given:Mass of 1 raindrop = 50 mg = 50×10-3 g.Mass of Pacific Ocean = 7.08 ×1020 Kg.

Q: Is there a rounded significant figures  of 5.681x10-7 moles ( 0.0000005681)

A: Significant figures can be defined as the to total number of the digits present in a number…

Q: Using the Avogadro Number An iron atom has a mass of 9.27 x 10 -23 g and a cooking pot has a mass of…

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Q: Calculate the mass in grams of 7.305x1022 molecules of CBr4. Express your answer to the correct…

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Q: What is the weight in grams of 3.74 × 10^16 CF4 molecules? Hint: must use Avogadro's number Put your…

A: Given : Molecules of CF4 = 3.74 x 1016

Q: How many grams of rubidium are in 3.49 x 1024 atoms of rubidium? Enter your answer in decimal form…

A: 1 mole atoms = 6.023 * 1023 atoms. molar mass of Rb = 85.4678 gmole  and mass of Rb = mole * molar…

Q: How many grams are in 0.513 moles of argon? Your answer should have 3 significant figures.

A:

Q: 0/5 This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in…

A: • The values provided in the question are:-     i) Number of moles of carbon in Ni(CO)4 sample = 52…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully polsonous liquid used in nickel…

A: The chemical formula of nickel tetracarbonyl is = NiCO4 The number of moles of nickel in the given…

Q: Calculate the mass in grams of each sample. 9.27×1019 CH4 molecules Express your answer using three…

A:

Q: researcher is using 7.20 x 1023 molecules of chlorine gas (Cl2) in an experiment. How many grams of…

A: Number of Molecules = 7.20 ×1023  Moles = Number of molecules/6.022×1023 = 7.20 ×1023/6.022×1023 =…

Q: What is the weight in grams of 3.74 x 10^16 CF, molecules? Hint: must use Avogadro's number Put your…

A:

Q: Calculate the number of atoms in 1.02 ×x 10¯º moles of helium. x 10 atoms (Enter your answer in…

A:

Q: 0.145 mol C2 H6 Express your answer using three significant figures. VC = mol Submit Request Answer…

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Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10²7 g. Use this information to…

A:

Q: Copper(II) fluoride contains 37.42%% F by mass. Use this percentage to calculate the mass of…

A: Given : Mass of copper (II) fluoride i.e CuF2 sample = 58.0 g And percent by mass of F = 37.42 %

Q: Part D. 9.53×1019 CH4CH4 molecules Express your answer using three significant figures. ?

A: The question is based on mole concept. we have to calculate mass of each of the molecule.

Q: 26.0 mol Hg Express your answer using three significant figures. N = atoms Submit Request Answer •…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: 2.30 moles of CaCa Express your answer with the appropriate units. Calculate the mass, in grams, for…

A: The relationship between mass of element and moles of element is given by  Mass of element = moles…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.