The element silver (Ag) has two naturally occurring isotopes: 109Ag and 107Ag with a mass of 106.905 u. Silver consists of 51.82% 107Ag and has an average atomic mass of 107.868 u. Calculate the mass of 109Ag.

Q: A mixture contains both potassium phosphate and potassium chloride. What is the percentage of…

A: The moles of  Cu3(PO4)2 in 0.5565 g is, number of moles=given massmolar mass…

Q: Naturally occurring chlorine is 75.78% 35Cl (atomic mass 34.969 u) and 24.22% 37Cl (atomic mass…

A: Given :  Atomic mass of lighter isotope i.e 35Cl (A1) = 34.969 u  Percentage abundance of lighter…

Q: 2 5 152 A 352.44 155 T 362.31 154 16 D 359.12 153 G 355.67 156 X 365.88 157 Z 369.52 You time travel…

A: Since you have asked multiple questions ,we will solve the first question for you.If you want any…

Q: A sample of monochloro pentaborane (9), B5H8Cl, has a mass of 20.7 g. What amount, in moles, does…

A: Chemical formula of monochloro pentaborane = B5H8Cl.Above compound contains B, H and Cl atom.

Q: 4) Nicotine, the stimulant in tobacco, causes a very complex set of physiological effects in the…

A: From the amount of CO2, H2O and N2 formed, we find out the amount of C, N and H present in the given…

Q: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: The molar mass of a compound is described by the moles concept. According to this concept, one molec…

Q: A solid circular cone made of pure platinum (density = 21.45 g/cm3) has a diameter of 2.75 cm and a…

A: Given information,    Diameter (d) = 2.75 cm so radius (r) = 1.375 cm     Density = 21.45 g/cm3…

Q: An unknown compound has the following chemical formula: PtCl, where x stands for a whole number.…

A:

Q: An unknown compound has the following chemical formula: PtCl, where x stands for a whole number.…

A:

Q: The molar mass of silver (Ag) is 107.87 g/mol. Calculate the mass in grams of a sample of Ag…

A: The mass of Ag of the sample is = 3.53 g

Q: The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu. Why is this true?

A: Given : The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu.

Q: Assume the atomic mass of element X is 22.99 amu. A 22.42−g sample of X combines with 123.73 g of…

A: Mass of X = 22.42 g Mass of Y =123.73 g Atomic mass of element X = 22.99 amu Atomic mass of element…

Q: What quantity in moles of iron atoms do you have if you have 3.00 x 10^23 atoms of iron. (The mass…

A: Number of iron atom = 3.0×1023Mole is equal to number of atom divide by avagadro numberValue of…

Q: How many moles of calcium atoms do you have if you have 2.85 x 1021 atoms of calcium. (The mass of…

A: The Answer to the following Question is given as:

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: Calculate the molar mass of the elements (go to the nearest one if your answer does not exactly…

A: Given: 25 g of an element contains 2.37 x 1021 atoms 25 g of an element contains 2.89 x1021 atoms

Q: 2. A 4.626 milligram sample of a hydrocarbon, upon combustion in a combustion analysis apparatus,…

A:

Q: A student weighs out 94.53 grams of sodium permanganate, NaMnO4.  How many moles of NaMnO4 is this?…

A: Moles— It is the ratio of given mass of a compound to its molar mass  Mole = given mass / molar mass…

Q: What is the mass in grams of 1.15 x 10^24 atoms of manganese?

A: 1 mol Mn has mass equal to  59.94 g  1 mol Mn = 6.022 × 1023  atoms of Mn

Q: Diamonds are a crystalline form of pure carbon, and their mass is measured in units of carats (1…

A: Given: Mass of diamond = 84.37 carat And 1 carat = 200 mg = 0.200 g…

Q: Hydrates take the form: compound·nH2O. An unknown hydrate has a molar mass of 446 g/mol.  If the…

A:

Q: 1.The combustion of ammonia in the presence of excets oxygen yields NO, and H20: 4 NH3 (g) + 7 02…

A: 1) Given that : Mass of ammonia = 174 g Mass of oxygen consumed = ?

Q: Sucrose has the molecular formula C12H22011. If a sucrose sample contains 9.0 x 1024 atoms of…

A: Given, Sucrose has the molecular formula: C12H22O11 A sucrose sample contains, Number of atoms of…

Q: mass

A:

Q: The bitter-tasting compound quinine is a component of tonic water and is used as a protection…

A: Data given: Mass of the sample = 0.487 g Mass of carbon dioxide produced = 1.321 g Mass of water…

Q: A) Suppose one molecule of Chlorophyll X contains 5 oxygen atoms. Chlorophyll X is 8.95% oxygen by…

A: Molecular mass of Chlorophyll X can be found out by using the mass percentage of Oxygen and number…

Q: In a universe far, far away, there exists an alien world where they have a different periodic table,…

A:

Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: I was looking over and was doing calculations so I could understand and no offense but shouldn't the…

A:

Q: A 45.0-mg sample of boron reacts with oxygen to form 145 mg of the compound boron oxide. What is…

A: Empirical formula is the basic simple ratio formula of a molecule after finding the moles of that…

Q: Convert 0.834 mol of le ad(M) nitrate, Pb(NO3)4(s), into mass.

A: Given :-  Number of moles of Pb(NO3)4 = 0.834 mol  To convert :-  0.834 mol to grams

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

A:

Q: n element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass…

A: Given that, Element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with…

Q: Ammonium perchlorate (NH¸CIO.) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: Ammonium perchlorate reacts to produce the nitrogen gas, chlorine gas, oxygen gas and water.  The…

Q: cond A B C D sketch of molecules in it H H C1O H-Ö C нӧ- H H :O: H H H-Ö H-Ö C H C || :0: C O: 010…

A: first, we have to find empirical formula of the given compounds

Q: Unknown element, Element X, exists in nature as two isotopes: ^{351}351 X has a mass of 350.9196 u…

A: Average atomic mass=∑i=1n (mass of ith isotope)(%abundance of ith isotope)100 where 'i'…

Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: 5. A bottle of Ibuprofen (C,,H,,O,) contains 1.204 x 1024 molecules. How many grams of ibuprofen are…

A: The molecular weight is 206.29 g/mol means 1 mol of ibuprofen = 206.29 g of ibuprofen

Q: How many atoms are in a 0.460 g sample of elemental phosphorus (P4)? The molar mass of a single P…

A: We are given 0.460 g sample of elemental phosphorus (P4) We need to find total number of atoms in…

Q: Determine the mass, in grams, of 0.785 moles of Si (1 mol of Si has a mass of 28.09 g)

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

Q: An unknown compound has the following chemical formula: Al,Cl where x stands for a whole number.…

A: given formula = Al2Clx

Q: An unknown metal X, mass 1,20g , reacts during heating with oxygen and forms an oxide XO of mass 2g.…

A: The balanced chemical equation for the given reaction is,                                      2 X…

Q: is trying to discover information about an unknown metal in a compound. The formula for the compound…

A: Atomic mass of an element is the mass of an atom of the element.Here we have to calculate atomic…

Q: CHEMWORK With the advent of techniques such as scanning tunneling microscopy, it is now possible to…

A: The advent of advanced techniques such as scanning tunneling microscopy has revolutionized the field…

Q: Calculate the molar mass of the elements (go to the nearest one if your answer does not exactly…

A: Given, mass of an element and atoms it contains.  To identify its molar mass and the Element. First,…

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".