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: 4. What percent of AgNO3 is silver? 5. How many grams of aluminum can be recovered from a 34.5 g…

A: (4) Given that -  Compound AgNO3 (Silver nitrate)  It has following atoms with atomic masses as -…

Q: How many moles of NO3- are in 13.0 g of Ca(NO3)2?

A: 1 moles of Ca(NO3)2 contains 2 moles of Nitrate ions. Nitrate ions (NO3-) present in the sample =…

Q: A) How many moles of C17H25O6 molecules are in 203 mg of this compound? B) What is the mass of…

A: Mass of C17H25O6 = 0.203 g Molar mass of C17H25O6 = 17x12 + 25x1 + 16x6 = 204 + 25 + 96 = 325 g/mol

Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

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Q: a. How many grams of B are present in 1.65 grams of boron trichloride? Mass= gB b. How many grams of…

A: A mole is a basic unit of an element.A mole is a collection of Avogadro number of particles i.e.A…

Q: 1) How many sodium atoms are there in 0.3 moles of Na atoms? 2) A sample of carbon dioxide is made…

A: 1) given, Number of moles of Na atoms = 0.3 moles Number of sodium atoms = ?

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is?

A: Given information,       Mass of C2H6O is 37.80 g.     Molar mass of C2H6O is 46.1 g/mol.

Q: a) How many molecules are present in 5.32 moles of chalk (CaCO3)? b) How many oxygen atoms are…

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Q: a. Determine the molar mass of potassium phosphate and ammonium phosphate. K3PO4 (NH4);PO4 b.…

A: The objective of the question is to determine the molar mass and mass percentage of phosphorus.

Q: A sample of propanol, C3H3O, contains 0.383 mol of the compound. What is the mass of the sample, in…

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Q: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: How many hydrogen atoms are present in 75.0 of g H2O?

A: Mass of water, H2O = 18.016 g/mol Mass of water = 75 g Moles of water, H2O = Mass Molar mass=75…

Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: 8.3.01 x 1023 CH₂O molecules moles CH₁₂0 9. 1.00 x 1025 Na atoms moles No

A: Here, we have to find the number of moles of C6H12O6 in 3.01×1023 C6H12O6 molecules and the number…

Q: 3. A 29.8g sample of a compound is found to contain 10.5g C and 16.7 g fluorine , the rest is…

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Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 1 How many are the oxygen atoms in 111 g of Ca(OH)2? (Atomic mass of Ca = 40)

A: Given 111g of Ca(OH)2

Q: What mass of compound is present in 4.60 mol of each of the following compounds? a. Mass= b.…

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Q: Br A) What is the molecular formula for this compound? B) What is the empirical formula for this…

A: A Molecular formula  represent the total number of atoms of each element in each molecule of a…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

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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: 5) What is the mass in grams of 6.022 x 10 molecules of CO, ? A) 22 B) 66 C) 44 6) How many grams of…

A: 5) the number of molecules of CO2 = 6.022×1023 molecules. we know, Avogadro's constant = 6.022×1023…

Q: You are given a 10.0 grams sample of ethanol (CH3CH2OH).   Explain how you can use the molar mass of…

A: The Avogadro’s number of any species is defined by a mole. The Avogadro’s number, NA, is equal to…

Q: The active ingredient in a common treatment for upset stomach is sodium bicarbonate, NaHCO3.…

A: Calculate the percent, by mass, of carbon in sodium bicarbonate.

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

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: What mass of AuCl3 (MW 303 g/mol) contains 5.0 x 1023 atoms of Cl?

A: One AuCl3 molecule contains one Au and three Cl atoms.

Q: How many moles of atoms are contained in 15.5 g of Br2 ?

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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 total atoms are in 0.360 g0.360 g of P2O5?

A: Molar mass of P2O5 is:

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: 3. What is the mass in grams of each quantity of lactic acid (C3H6O3), the compound responsible for…

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Q: What is the amount of H present in the original sample, in moles?

A: We have moles of H2O in the compound = 0.00610   (= Given mass of water (0.110 g) divided by the…

Q: What is the mass of exactly 1 mole of each of the compounds? N,O: Fe(CIO),: Fe(CIO, )3:

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Q: Find the percentage by mass of oxygen (O) in N2O4 if it is 30.4% nitrogen (N) by mass.

A: We have given that Percent by mass of nitrogen in N2O4 = 30.4% Mass of N2O4 = 92.011 g/mole Percent…

Q: If you have a 25% Ca in calcium fluoride, what is the mass of Ca if you have 2.40 g of calcium…

A: Mass percent is defined as the mass of the substance divided by the total mass of the mixture,…

Q: . Suppose a sample is 32 mL of water, how many grams of oxygen is present in the sample? 2. How…

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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.