Vitamin C is a covalent compound with the molecular formula C6H8O6. The recommended daily dietary allowance of vitamin C for children aged 4–8 years is 1.42 × 10−4 mol. What is the mass of this allowance in grams?

Q: What is the mass in kilograms of 5.6 x 1027 molecules of carbon tetraiodide?

A: Number of moles of a compound is equal to the ratio of the given mass of the compound to the molar…

Q: An Organic compound contains 59.00% by mass C, 7.15% by mass H, 7.65% by mass N, and 26.20% by mass…

A: Given data is as follows: The elements are given in percent which is out of 100. So, the mass of C =…

Q: What is the mass of 3.01 x 1023 atoms of FeO? Round to two decimal places.

A: a) Given  mass of AgNO3 = 5,398 grams  molar mass of AgNO3 = 169.87 g/mol Conversion factor - 1 mol…

Q: If the molecular mass of an oxide of nitrogen is 108 and 4.02 g of N combine with 11.48 g of O, what…

A: Given, Given mass of nitrogen = 4.02 g Molar mass of nitrogen = 14.01 g/mol Given mass of oxygen =…

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022 .how many electrons present in the…

A: Number of copper atoms = 2.8 × 1022  We need to determine number of electrons present.

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

Q: A sugar crystal contains approximately 2.0×1017 sucrose (C12H22O11) molecules. What is its mass in…

A: Relation between mass and number of molecules is:

Q: Your doctor has diagnosed you as being anemic-that is, as having too little iron in your blood. At…

A:

Q: The mass of a silver (Ag) coin is 15 g. If the coin is 50% Ag by mass, then how many Ag atoms are…

A: The given mass of the silver coin = 15 g Percentage composition by mass of silver (Ag) = 50% So,…

Q: Calculate the mass of 1.00 x 1024 (a septillion) molecules of water.

A: Given : Number of water molecules = 1.00 X 1024

Q: What is the mass, in grams, of 9.94 x 104 molecules of methanol (CH, OH) ?

A: Given molecules of methanol is 9.94 x 1024 It is known that 1 mole of  methanol has 6.023 × 1023…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

Q: If 44.0 g of molten iron(III) oxide reacts with 35.0 g of aluminum, what is the mass of iron…

A: Iron(III) oxide reacts with aluminium to form iron and aluminium(III) oxide. The equation for the…

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

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

Q: What would be the mass, in grams, of an NO2 sample in which 100 billion (1.00 X 10 11) moleculesare…

A: The number of molecules of NO2 sample is 1.00×1011.   The formula to calculate the number of…

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A:

Q: A binary compound between an unknown element E and hydrogen contains 91.27% E and 8.73% H by mass.…

A: The formula of the binary compound is E3H8.

Q: A drop of water, H2O, has a volume of approximately 0.050 mL. Assuming that the density of water is…

A: Given volume of 1 drop = 0.05 ml density of 1 drop = 1 g/ml number of drops = 3

Q: The active ingredient in baking soda is NaHCO3. How many grams of NaHCO3 are needed to provide 2.15…

A: The active ingredient in baking soda is NaHCO3.  One atom of NaHCO3. contains = 3 atoms of O. or, 1…

Q: Sodium is an alkaline metal which is very reactive and so is not found free in nature. Sodium forms…

A:

Q: A metal M forms a compound with the formula MCl4. If the compound is 66.14% chlorine by weight, what…

A: The molecular formula of metal chloride is = MCl4 The mass percentage of chlorine is = 66.14 %

Q: Fluoride ion is added to drinking water to prevent tooth decay. What is the mass in grams of sodium…

A: Given Formula units = 1.19 × 1019

Q: A sugar crystal contains approximately 2.1x10^17 sucrose (C12H22O11) molecules. What is it’s mass in…

A: The molar mass of the sucrose (C12H22O11) is 342 g/mol.The number of moles of sucrose can be…

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: How many grams of carbon are in 1.13 x 1025 molecules of (carbon dixide) CO2 ?

A: Given, Number of molecules of CO2 = 1.13 x 1025  Mass of Carbon (C) = ? Note: molar mass of C =…

Q: 1. What is the mass of 1.22 x 1022 molecules of silicon monocarbide? How many molecules are in 99.5…

A: 1) given, molecules of silicon monocarbide = 1.22×1022 molecules Avogadro's constant, Na =6.022 ×…

Q: Matter is neither created nor destroyed in a chemical reaction. Thus, the mass of the products of a…

A:

Q: A sugar crystal contains approximately 1.8x1017 sucrose (C12H22O11) molecules. What is its mass in…

A:

Q: The chlorophyll-a molecule (C55H72MgN4O5) is important in photosynthesis. (a) Determine its…

A: a) Since molecular mass = sum of ( Atomic mass of atoms X number of atoms in the molecule)  Hence…

Q: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: 1.Glucose is an important biological molecule with the molecular formula C₆H₁₂O₆. What is its…

A: 1.Glucose is an important biological molecule with the molecular formula is C₆H₁₂O₆. An empirical…

Q: Calculate the mass in grams of 1.8 x 10^17 KCl molecules

A:

Q: 9. If you have 9.407 x 1023 atoms of lead, how many grams of lead (IV) phosphate can you make? 10.…

A:

Q: What mass (in grams) of CH„O contains 3.984 x 1025 atoms?

A: The ratio of given mass of substance to molar mass of that substance is called as number of moles.…

Q: Calculate the mass in grams of 2.84 x 1024 molecules of methanol. The chemical formula for methanol…

A: Given  Number of molecules of methanol = 2.84 × 1024 molecules  Chemical Formula of methanol      =…

Q: the mass ( in g) of 1.2 x 10^24 atoms of molybdenum, Mo.

A: A mole refers to the amount of discrete entities (atoms, molecules, particles ) present in a…

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A:

Q: A metal (M) forms an oxide with the formula M₂O. If the oxide contains 3.835% O by mass, what is the…

A: Formula of metal oxide is M2O. Molar mass of oxygen is 16 g.mol-1.  Consider the molar mass of metal…

Q: What is the molecular weight of sugar, C6H12O6 in atomic mass units? And If you had one mole of…

A:

Q: formula units

A:

Q: What is the mass of 8 atoms of copper in grams? 8.44 x 10-22 g 1.33 × 10-23 g X 508 g 7.58 x 1022 g…

A:

Q: What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid? 251 g…

A:

Q: ron is biologically important in the transport of oxygen by red blood cells from the lungs to the…

A: 2.63 x 1013 red blood cells     2.90 g of iron molar mass Fe = 55.85 g/mol first we will calculate…

Q: The average mass of one atom of carbon is 2.00 x 10 –23 g. How many carbon atoms are present in a…

A: Given:Mass of one atom of carbon = 2.00 x 10 –23 g.Total mass of sample of carbon = 40.0 g.

Q: Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore…

A: Given information: The mass percent composition of calcium phosphate is 57.8% The amount of…

Q: What is the mass, in grams, of 2.84x1023 atoms of lead?

A: Given :- number if atoms of lead = 2.84 × 1023 atoms  To calculate :- mass (in g)

Q: 9. Explain how the atomic mass unit (amu) is defined and explain how the definition of an amu, in…

A: amu i.e atomic mass unit is the unit used to express mass .  Avogadro's number = 6.0221 × 1023

Q: Calculate the mass percentage of chlorine in trichlorobenzene, C6H3Cl3.

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".