Question 1 Approximately how many vanadium atoms do we find in 3.4 grams of vanadium? 4.02 x 10^22 O 6.022 x 10^23 50.942 O 1.71 x 10^24 1 pts

Q: calculate the masss of carbon in a 1-carat diamond that contains 7.56 x 10^22 atoms of carbon

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Q: 50.0 gram

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Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 4.75 g O 63.55 amu O 63.55 g O 7.47 x…

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Q: How many moles are there in 2.75 x 10^24 atoms of copper?

A: we know that one mole of copper contain Avogadro's number of atoms Avogadro's number= 6.023 × 1023

Q: How many O-atoms are there in 0.433 g of Ca(NO2)2 (MM= 132.1 g/mol)? O 3.28 x 10-3 O 1.97 x 1021 O…

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Q: You have a compound containing 15.32 % silicon, 49.76% Zr (Z = 40), and 34.91 % oxygen.  What is the…

A: Given , Silicon = 15.32 % Zirconium = 49.76 % Oxygen = 34.91 %

Q: 4) How many moles of cesium are in 66.45 g Cs? 5) What is the mass (grams) of 2500. carbon atoms? 6)…

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Q: how many atoms of carbon are in a 312.5 mg sample of C^3H^8?

A: Avogadro's number gives the number of atom or particle present in 1 mole of any substance.

Q: How do I calculate the mass of 6.20 x 10^22 tungsten atoms?

A: Given : Number of tungsten atoms = 6.20 x 10^22  Molar mass of tungsten = 183.84 g/mol

Q: Calculate the mass of 5.70 X 10^22 tungsten atoms.

A: Given No of atoms of tungsten = 5.70 x 1022   Also, Molar mass of tungsten =  183.84 g

Q: · Calculate the molar mass of each of these compounds and the mass percent of each element. a) PbS,…

A: Given : Compound is PbS. Each molecule of PbS contains, 1) 1 atom of Pb 2) 1 atom of S Hence the…

Q: Find the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen peroxide

A: we have to calculate  the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen…

Q: What is the mass in 3.52 x 10^23 water molecules?

A: mass of 3.53 ×1023 molecules is 10.45g

Q: Question attached

A: Number of moles of the substance is equal to the ratio of mass to the molar mass of the substance.…

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

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Q: If you have 7.20*10^26 platinum atoms, how many moles do you have?

A: Answer: This question is based on the relation between number of moles and Avogadro number which…

Q: How many moles of zinc, Zn, are in 1.35×10^24 Zn atoms?

A: Question is based on mole concept. We have to calculate number of moles of zinc.

Q: A compound has an empirical formula of C 8H 15. If a sample of the compound contains 3.89 grams of…

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Q: 3 Serotonin (C10H12N₂O) is a neurotransmitter that when balanced is responsible for there in 12.40 g…

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

Q: The density of water, H₂O(1), is 1.0 g ml.. How many atoms of oxygen are present in 2.5 L of pure…

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Q: A compound has an empirical formula of C 8H 17. If a sample of the compound contains 4.90 grams of…

A: To solve this problem we will first find the number of moles of carbon from the given mass then…

Q: How many atoms are there in 3.559 × 10−6 mol of krypton?

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Q: 4. Citric acid was found to contain 37.51% C, 4.20 % H. and 58.29% O by mass. What is the simplest…

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Q: 3 Serotonin (C10H12N₂O) is a neurotransmitter that when balanced is responsible for happiness,…

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Q: 2. A compound has the following chemical formula; CuAl6(PO4)4(OH); 4 H₂O. Calculate the mass…

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Q: 7. Which of the following is the molecular formula of a sample of a compound containing 30.46%…

A: Please find your solution below : Molecular formula of any compound is an expression about the…

Q: how many grams is a sample of Al2(SO4)3 that contains 7.97 x 10^23 oxygen atoms

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Q: In one of your experiments, you made magnesium oxide by burning magnesium in the air. How much Mg is…

A: Magnesium reacts with oxygen to make a compound called magnesium oxide. The bright light results…

Q: 320 g of a certain chemical element contains 4.82 x 1024 atoms. Find the name of the element. MAr…

A: Given 320 g of a certain chemical element contains 4.82 x 1024 atoms

Q: Calculate the number of atoms in a 8.96 X 103 g sample of lithium

A: In a sample various numbers of atoms are present. These numbers depends upon mass of sample.

Q: How many atoms are in 15.6 grams of silicon? group of answers 0.555 2.64 x 10^26 3.34 x 10^23 438…

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Q: A sample of C3H8 has 8.00×10^24 H atoms. How many carbon atoms does the sample contain?  What is…

A: Given :- number of H atoms = 8.00 × 1024 atoms  To be calculated :-  No. of C atoms in sample…