8. How many grams are in 2.55 x 1024 molecules of KCI?

Q: How many moles of Ag are in 73.2 grams of Ag₂O?

A: Given Mass of Ag₂O = 73.2 g Molar mass of Ag₂O = 231.7 g/mol

Q: Mercury can be obtained by reacting mercury(II) sulfide, HgS, with calcium oxide, CaO. How many…

A: Given: The reaction is as follows:  4CaO+4HgS→4Hg+3CaS+CaSO4 The mass of Hg produced=84.7 g. The…

Q: How many moles are in 8.00 g of NH3?

A: It is required to calculate the number of moles in 8 g of ammonia, which can be done using the…

Q: step 4 Dichlorine heptoxide (C1207)(C1207) is a highly reactive compound used in some organic…

A: Given that -  Dichlorine heptoxide , Cl2O7 , which is a highly reactive compound.    The molar…

Q: Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous…

A: The balanced equation for the reaction of aqueous sulfuric acid with solid sodium hydroxide to…

Q: The density of water is 1.00 g/mL at 4 degrees Celsius. How many water molecules are present in…

A: First of all calculate the mass of water by using given volume and density of water. Then calculate…

Q: Sodium hydroxide, NaOHNaOH, is a strong base that is used in industrial synthesis and processes such…

A:

Q: The chemical formula for the antidepressant fluoxetine is C₁₇H₁₈F₃NO. What is the mass in grams of…

A: Given data: The molecular formula of fluoxetine is C17H18F3NO. The given moles of fluoxetine is…

Q: What is the mass in grams of 4.28 × 10²⁵ molecules of O₂?

A: Given:molecules of O2 = 4.28 × 10²⁵ moleculesRequired: Mass of O2 = ?

Q: d If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt…

A: Nickel formate decomposed to form nickel powder. Each mole nickel formate produces 1 mol of nickel.…

Q: What is the mass in grams of 7.80x10^15 molecules of CO?

A:

Q: How many moles of Ag are in 87.4 grams of Ag₂O?

A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles

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: Calculate the mass in grams of 1.8 x 1017 KCl molecules.

A:

Q: How many grams is equivalent to 1.204 x 1024 molecules of NH3? How many moles are there in 584 g of…

A: 1 mol = Avogadro's number molecules            = 6.022 * 10 23 molecules  Moles = weight / molar…

Q: How many moles of Ag are in 63.5 grams of Ag₂O?

A: The objective of this question is to calculate the number of moles of Silver (Ag) present in 63.5…

Q: If 101 g of CaO and 280. g of NH4Cl are mixed, what mass of NH3 can be produced?

A: Given,CaO is 101 gAmmonium chloride is 280 gMolar mass of CaO is 56.0774 g/molMalar mass of Ammonium…

Q: The molecular weight of hemoglobin is about 68,000 amu. What is the mass in grams of a single…

A: Molecular weight is the mass of one mole of any substance. One mole of any substance contains…

Q: What is the mass, in grams, of 9.49×1024 molecules of methanol (CH3OH)?

A: Please find the attached images for the answer

Q: What is the mass in grams of 4.28x10^22 molecules of water ?

A:

Q: A mixture of CuSO4 5H₂O and MgSO4 7H₂O is heated until all the water is lost. If 5.135 g of the…

A: In the given question we have to  calculate the percent by mass of copper salt in the given…

Q: Calculate the mass in grams of 1.35 x 104 molecules of methanol.

A: Given :- number of molecules of methanol = 1.35 × 1024 molecules  To calculate = mass (in g)  1 mol…

Q: A person drinks 1.50 × 103 g of water, H2O, per day. How many moles is this?

A: Given,Mass of water = 1.50×103 gMolar mass of water is 18.015 g/mol

Q: If 5.9 x 1025 molecules of CO2 are produced in a combustion reaction, what is the mass in kg of CO2…

A: Molar masa of a compund is defined as a mass of a sample of a that compund divided by the amount of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.