10 The Madrigal family grills every Sunday after their weekly soccer match with the Dorsey family. To grill, however, they need a total of 246.44 g of propane gas. How many protons are there of carbon in 264.44 g of propane gas?

Q: You have discovered a new element - Bluehenium (Bl).  It has two naturally occurring isotopes 68Bl…

A:

Q: Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that…

A: A multiple choice question based on atomic structure, which is to be accomplished.

Q: formula NISO,•XH2O? 4

A:

Q: When 6.00 g of sulfur are combined with 6.00 g of oxygen, 12.00 g of sulfur dioxide (SO2) are…

A: Molecular mass of sulfur = 32 g /mol, means 32 g in 1 mol.Molecular mass of O2 = 32 g / mol, means…

Q: A metal ion with 2+ charge has 23 electrons and forms a compound with a halogen ion that contains 17…

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Q: A sample of Cu weighs 64.6 grams. Will a sample of Zn that contains the same number of atoms weigh…

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Q: How many protons are there in one molecule of dichlorine heptoxide?

A: The molecular formula of dichlorine heptoxide is Cl2O7. Its structure is shown as follows:

Q: You have a compound with the formula X₂Y. X is an isotope with a mass of 20g/mol and Y is an isotope…

A: Mass of X = 20 g/mol Mass of Y = 43 g/mol

Q: Specify the number of protons and electrons in each of the following ions. A) Se^2−, needed for…

A: To specify the number of protons and electrons we will use the following concept . Since we know…

Q: 1, 2 and 4

A: 1. Total molecular mass of Sb2S3 = 339.7 g  Mass of Sb = 121.76 g Amount of ore = 1kg = 1000 g 2. C…

Q: I couldn't put both parts of the question in one picture, so please answer both parts of the…

A: Weight of a formula unit is called formula unit mass.  Number of formula units present in 1mol of…

Q: There are only two naturally occurring isotopes of antimony: 121Sb (120.90 amu) and 123Sb (122.90…

A: Given that: Atomic weight of isotopes of Antimony is, Sb-121 = 120.90 amu Sb-123 = 122.90 amu Atomic…

Q: How has the understanding of the structure of the atom changed over time? Briefly describe the…

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Q: Suppose the diameter of a type of atom is 2.22 x 10-7 mm. A coin has diameter 1.20 cm. Suppose the…

A: If we divide the diameter of a coin by the diameter of an atom we will get the no. of atoms.  Given…

Q: Naturally occurring Europium (Eu) consists of two isotopes with a mass of 151amu and 153amu. If the…

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Q: The chemical formula for barium hydroxide is: Ba(OH)2 How many hydrogen atoms are in each formula…

A: Formula of barium hydroxide is Ba(OH)2

Q: atoms

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Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

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: Let's look at an example: which of the following compounds has 9 hydrogens (H)?   Options:…

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Q: The natural abundance of the three stable isotopes are 90.92% isotope A (19.9924 amu), 0.3104%…

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Q: A sample of Cl 2O was composed of 5.921 g of chlorine and 5.342 g of oxygen. How many grams of…

A: Given: In sample 1, Mass of Cl in Cl2O = 5.921 g. And Mass of O in sample 1 Cl2O = 5.342 g. And in…

Q: Copper has two naturally occurring isotopes, 63 Cu(62.9396amu)and 65 Cu(64.9278amu). If copper has…

A: %abundance of cu63= |63.546-64.9278|÷|64.9278-62.9396| So solve it  and  27% Cu63 Same for CU65= 73%…

Q: 7.53 × 10^23 molecules of an element has a mass of 88.64 g. What is the identity of this molecular…

A: 7.53 × 1023 molecules of an element have a mass of 88.64 g. This molecular element is to be…

Q: Aspartame is an artificial sweetener that that is 160 times sweeter than sucrose(table sugar) when…

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Q: 8. Europium is the element responsible for the red phosphors in a colour TV screen. The mass…

A: #8: We are given the mass spectrum of the isotopes of the element Europium(Eu).  According to the…

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

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Q: The atomic mass of bromine is 79,904 amu. The atomic mass of the Br-81 isotope is 80.9163 amu and…

A: The atomic mass of bromine is 79.904 amu. This is actually the average atomic mass of Bromine which…

Q: There are only two naturally occurring isotopes of Copper, 63 Cu and 65 Cu. Copper has an atomic…

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Q: How many protons and electrons are present in an atom of strontium (Sr)? ooo Protons = 38, Electrons…

A: Atomic number: The number of protons in an atom is considered as atomic number. In a neutral atom,…

Q: When 5.00 g of sulfur is combined with 5.00 g of oxygen, 10.00 g of sulfur dioxide (SO2) is formed.…

A: Chemical reactions are those reactions which undergo any chemical change. Chemical reaction is…

Q: When we see a compound that has parentheses, we treat them the same way we would in algebra. If we…

A: The compound given are, 1) (NH4)2HPO4  2) C4H8BeF3NO4  3) C6H12O6  4) CH6NO3P

Q: Which of the following is incorrect? a) In the Lewis dot structure of the NH3 molecule, there is one…

A: Lewis structure  of NH3  is                 There is one unbounded electron pair on N2.If  water…

Q: 6 A compound of iodine and cesium contains 74.85 g of metal and 61.30 g of nonmetal. How many grams…

A: The question is based on the concept of stoichiometry. We have to calculate quantity of caesium…

Q: Order the following from smallest to largest 1 Tin, Sn ! Germanium, Ge 3 Silicon, Si 4 Carbon, C 2.

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Q: Anhydrous CuSO4 is converted to CuSO4・xH2O to absorb water from certain liquids. What is the value…

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Q: 1) There are 10 Protons in a neutral atom and it is a gas at room temperature and how many neutrons…

A: For an atom, protons are equal to the number of electrons and atomic number.  Proton=electrons =…

Q: What is the chemical formula of carbon tetrafluoride?

A: The compound given is carbon tetrafluoride.

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

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Q: How many protons are in 2.08 x 10-21 g of F?

A: Atomic weight of F = 19 Given is Mass of F= 2.08 x 10-21 g Number of moles= given mass/ molar mass…

Q: How many helium atoms are there in a helium balloon containing (1.8x10^0) kg of helium?

A: Given :- mass of He = 1.8 × 100 kg  To calculate :- number of atoms of He  number of moles =…

Q: 04: (a) Nitrogen occurs naturally as 2 isotopes: N-14 and N-15 O Nitrogen has an atomic number of 7.…

A: Question is related to Inorganic chemistry topic.

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".