Find: a) what% by mass of oxygen are in 60 grams of NH4NO3 b) how many hydrogen atoms are in 60 grams of NH4NO3

Q: Each molecule of vitamin B12 contains a single atom of cobalt and is 4.35% cobalt by mass. What is…

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Q: 2. a) How many molecules are in 2.00 moles of H¿O? b) How many hydrogen atoms in 2.00 moles of H,O?…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering first three sub-parts…

Q: How many H atoms are in 19.9 g of isopropanol (rubbing alcohol), C3H3O?

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Q: If we want to make 2.5 moles of NH3, how many grams of nitrogen will we need?

A: The balanced chemical equation for the reaction that produces ammonia (NH3) from nitrogen (N2) and…

Q: Chemical Composition 1. If you have 3.65 g of Ba(OH)2, how many moles of Ba(OH)2 do you have?

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Q: How many oxygen (O) atoms are present in a 254 gram sample of carbon dioxide (CO2) gas?

A: Since moles of carbon dioxide = mass of carbon dioxide / molar mass of carbon dioxide molar mass of…

Q: How many ATOMS of phosphorus are present in 3.91 moles of phosphorus trichloride? ________ atoms of…

A: A mole is the amount (10) of material containing 6.02214 × 1023 particles. 1 mol = 6.02214 × 1023…

Q: An essay written by carbon pencil on a paper weighs 0.5 mg. How many carbon atoms present in the…

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Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: What is the mass of 1.82 mole C4H11O3 in grams

A: mass of 1.82 mole C4H11O3 in grams determined in step 2

Q: 4. How many moles is 3.4 g of sodium, Na?

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

Q: Number of atoms of C in 6 moles of C,H10 are: O 24.09x10^23 O 36.13x10^23 O 2.49x10^23 O…

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Q: Which of the following can be considered an empirical formula? Explain how you know. CH4 C2H8 C2H6…

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Q: Phosphorus (P) is element 15 on the periodic table. A sample contains 3.32x1025 atoms of P.…

A: For phosphorous (P) Atomic number of phosphorus = 15 Given,Sample of phosphorus contains = 3.32 ×…

Q: Number of atoms of Carbon in 15 moles of C4H10 are: 90.33x10^23 361.32x10^23 O 6.23x10^23

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Q: 2. A gas sample is found to contain 39.10% Carbon, 7.67% Hydrogen, 26.11% Oxygen, 16.82% P, and…

A: Given amount of elements are as follows C = 38.10% H = 7.67% O = 26.11% P = 16.82% F = 10.30% Atomic…

Q: Which contains the greatest mass of oxygen?   0.75 mol of ethanol (2C H5 OH)   1.0 mol of water…

A: Which contains the greatest mass of oxygen?

Q: How many moles of K2SO4 are in 15.0 g of K2SO4?

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Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

Q: 2. How many molecules are there in 2.54 moles of glucose, C,H1,O6?

A: We know that in one mole of any substance = 6.022×10²³ unit So one mole of glucose = 6.022 × 10²³ So…

Q: How many moles of H are there in 3.50 g of dopamine? How many O atoms are present in 1.55 moles of…

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Q: What mass of carbon dioxide, CO₂, contains the same number of molecules as 3.00 g of…

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Q: How many total atoms are in 0.860 g0.860 g of P2O5?

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Q: Cesium (Cs) is element 55 on the pe 3.95x1023 atoms of Cs. Calculate th mol Cs

A: Given that, Atoms of CS= 3.95 ×1023 atoms  Then,

Q: How many atoms are contained in 12 g of water? O 2.4 x 1024 O 1.2 x 1024 4.0 x 1023 O 1.3 x 1023

A: To calculate the number of atoms in 12 g of H2O Molar mass of H2O = 18 g/mole Now we calculate moles…

Q: How many hydrogen atoms are in a 12.2g sample of ammonia (NH3)?

A: Given   Mass of NH3 = 12.2 gram  Number of hydrogen atom = ?

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.