Question 11 How many moles of nitrogen are in 267.78 g dinitrogen tetroxide.

Q: Question 16 16. Calculate the mass% of N in (NH4)2CrO4. N=14.00 g/mole, H 1.008 g/mole, Cr-52.00…

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Q: Which sample has the greatest mass of atomic oxygen?   Question 8 options:   36.0…

A: The objective of the question is to determine which of the given samples has the greatest mass of…

Q: QUESTION 4 How many grams of NH4NO3 (80.05 g/mol) are present in a 2.68 mol sample? O 346 g NH4NO3 O…

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Q: How many atoms are in 133g of calcium? 133g=

A: Given  Mass of calcium = 133 gram  Molar mass of Calcium = 40 gram/mole Number of atom = ?

Q: How many ug arsine present in a sample contains 6.2 parts per billion arsine, if the weight of the…

A: Parts per billion (ppb) :-  The number of parts by weight of solute present in billion (109) parts…

Q: How many formula units are in 22.4 g SnO2?

A: Given  mass of SnO2 = 22.4 g

Q: How many atoms are in 4.50 mol of potassium? 4.50 mol = atoms How many moles are in 5.94 x 1024…

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Q: How many atoms of nitrogen are there in 0.50 mol of (NH4)2CO3?

A: Given: (NH4)2CO3 1 mole of given compound contains 2 N atoms with it.

Q: Determine the empirical formula of a 175.45 g sample that contains 47.74 g Nitrogen , 6.82 g…

A: Given  47.74 g Nitrogen , 6.82 g hydrogen and 120.9 g chlorine. Moles of N = 47.74/14 = 3.41 mol…

Q: A mystery compound has a molar mass of 28.1 g/mol. How many moles is 98.4 g? Do not put any units in…

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Q: Use the References to access important values if needed for this question. How many MOLECULES of…

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Q: Which sample has the greatest amount (moles)? Question 14 options: 10.08 u of hydrogen 100 atoms…

A: The objective of the question is to determine which of the given samples has the greatest amount in…

Q: How many moles of fructose are in a sample containing 1.43 x 1024 Molecules of fructose? (Answer…

A: We will solve this problem with the help of Avagadro's number. One mole of a compound contain…

Q: how many moles of hydrogen are in 3.06x10^-3 grams of glycine

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

Q: Calculate the number of moles of Fe in 43.6 grams of Fe.

A: Given :- mass of Fe = 43.6 g  To be calculated :- number of moles of Fe

Q: Which of the following is an empirical formula? O CSH10 O C3H,O2 O H2O2 O PĄO10

A: The empirical formula may be defined as the simplest positive integer ratio of atoms present in a…

Q: What is the empirical formula for a sample containing 81.70% carbon and 18.29% hydrogen?

A: Sample containing 81.70% carbon and 18.29% hydrogen .

Q: How many molecules are in 21.9 moles of CCl₄?

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Q: Using Avogadro's number, how many number of moles of NH3 in 7.52 x 10^23 molecules of NH3

A: The question is based on mole concept . we need to calculate moles of ammonia present in given…

Q: How many moles of Ca atoms are in 613.29 g of Ca? Group of answer choices 6.53 x 10-2 mol 15.30 mol…

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Q: How many atoms are in 5.00 moles of O? O O 23 5.02 x 10 atoms 24 1.51 x 10 atoms O 3.01 × 1023 atoms…

A: The concept of the Avogardo number is used here. Because the moles of O are given and we are asked…

Q: How many moles are in 9.26 x 1023 molecules of NH3 ? Do not put units in your answer. Do use proper…

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Q: How many moles Are in 7.92 * 10^22 molecules of an unknown compound

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Q: Determine the number of moles and the mass of copper(II) carbonate needed to produce 1.500 kg of…

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Q: QUESTION 28 Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen,…

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Q: Pheromones are a special type of compound secreted by the females of many insect species to attract…

A: Molecular formula of pheromone: C19H38O mass of pheromone (C19H38O) = 1.3 × 10-12 g Number of…

Q: Question 2 What volume (in mL) would 3.98x1022 Br₂ molecules occupy? The atomic mass of Br = 79.904…

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Q: How many atoms are in 4.5 moles of Al?

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Q: How many molecules are in 24.8 moles of SO₂?

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Q: Question 1 1 pts Calculate the number of moles of atoms present in 5.28 g of elemental zinc.…

A: Answer 1:We know that, Number of Moles=Molar MassMass​Given that:Mass of the zinc = 5.28 gWe know…

Q: Examine the pie graph below. What is the molar mass of compound X? Mass Contributions to 3.0 mol of…

A: In the given pie chart: The total mass of the various elements in the compound X must be calculated…

Q: How many molecules are in 40.8 moles of SO₂?

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

Q: How many moles of iron are in 3.55 x 1025 atoms of iron?     59.0 mol     6.36 x 1023 mol…

A: We have to determine moles of iron present in 3.55 x 1025 atoms of iron

Q: Question: 1-What is the mass in grams of 4.30 moles of Aluminum?   2-What is the number of…

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Q: Attached question

A: Given data is as follows: The mass of Phosphorus = 0.311 g The mass of Chlorine = 1.07 g  Calculate…

Q: A mole of the water is: 12.0000 g H2O one H20 molecule O 6.02 x 1023 g H2O 6.02 × 1023 H20 molecules…

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Q: QUESTION 1 How many atoms of nitrogen are in 10 g of NH4NO3?

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Q: Calculate the number of moles in 4.95 g nickel .

A: The Number of Moles of Nickel can be calculated as -

Q: Two elements X and Y combine to form two compounds with the following compositions: Compound % Mass…

A: In a compound the particular element is present in the weight ratio .

Q: Question attached

A: Given data contains, Number of molecules of O3 is 4.5×1025 molecules. Molar mass of oxygen is 16…

Q: QUESTION 1 Calculate the molar mass of carbonic acid (H2CO3). There may be slight differences…

A: Calculation of the molar mass of carbonic acid is given below.

Q: Select all the compounds that have an empirical formula of CH which has an empirical formula mass of…

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

Q: Give written answer only   How many moles of NaCl are in 58mg?

A: To solve this problem we will calculate the number of mole in NaCl .