4. A 100.0-g sample of an unknown hydrate (formula weight 234.0 g/mol) contains 31.4 g of water (formula weight 18.02). How many moles of water are there per mole of hydrate? of

Q: 8 Calculate the number of moles, and molecules in: a) 10 g water b) 10 g ethanol C,H,0 c) 10 g of…

A: Molar mass of water : 18gmol-1  (I) number of moles = ( mass / molar mass of water )  number of…

Q: 8. 4KCIO, → 3KCIO̟ + KCI a) KCIO, to KCI b) ксiо, to KCI c) ксiо, to Kcio,

A: The equation that contains an equal number of atoms on both sides of the equation is known as a…

Q: many molecules were used

A:

Q: 28) How many moles contain 6.022 × 1023 lithium atoms? A) 2 moles B) 1 mole C) 6.022 x 1023 moles…

A: Given  Number of Lithium atom = 6.022 × 1023  Number of mole = ?  Mass of FeSO4  = 4.657 gram…

Q: Suppose a 17.8640 g sample of a NaCl and KCl mixture contains 3.5286 g of NaCl. What is the percent…

A: The mass percent of the component in the mixture can be calculated by using the below formula- Mass…

Q: A student is given a sample of red cobalt sulfate hydrate. She weighed the sample in a dry covered…

A: Calculation of amount of CoSO4 in 100 g of hydrate:In 100 g of the hydrate, the amount of water…

Q: Oxygen 15.999 Hydroge 1.008 12.011 2. C2H4 +3 O2-- 2 CO2+2 H2O Mole Ratio Moles Moles of A Meles of…

A:

Q: How many moles of propane (C3H6) are in 25.0 g of the substance? (with the starting point)

A:

Q: Calculate the number of molecules in 7.00 molesmoles H2S

A: Given :- number of moles if H2S= 7.00 mol  To calculate :- number of molecules of H2S

Q: ximum amount of sulfur trioxide that can be formed? grams PRMULA for the limiting reagent? of the…

A: Given,  Balanced chemical reaction,  2SO2(g) + O2(g) ---> 2SO3(g) Mass of SO2 = 28.8 g Moles of…

Q: mL mL Moles MnO, Added Moles Fe?+ Present Grams Fe2* Present g Weight % Fe Average Weight % Fe in…

A:

Q: How many grams of NH3 can be produced from 4.36 mol of N2 and excess H2

A: Given, Moles of N2 = 4.36 mol   The balanced reaction between N2 and H2 to form NH3 can be written…

Q: Determine AG° for 2 NO2(g) – N2O4(g) at 25°C. Substance AG† (kJ/mol) NO2 (g) 51.3 N2O4 (g) 97.8

A: Given data, ∆Gof for NO2(g)= 51.3 KJ/mol And ∆Gof for N2O4(g)=97.8 KJ/mol Given reaction is,…

Q: If you added 231.9 grams of HF to an excess of Mg(OH),, how many moles of HF have you added?

A:

Q: o determine mole ratios for

A:

Q: sample of waterer (density is 0.998 g/mL) is measured to be 25.7mL.  How many mole of water are in…

A: Given: The density of water is 0.998 g/mL. The volume of the solution is 25.7mL. The molar mass of…

Q: A cereal contains 11.0 grams of sucrose (C„H0,) per 60.0 grams of cereal 22 How many grams of cereal…

A:

Q: Convert 12.0g O3 to moles

A: We have to convert 12.0g O3 to moles. Mass of O3 (ozone)= 12 g Molar mass of ozone(O3) = (3×16)g/mol

Q: Given 11.6g of LigPO4. Calculate the following The molar mass of LigPO, in g/mol [Select] Number of…

A: Given: Mass of Li3PO4 = 11.6 g

Q: How many grams will of NaCl will produce if you react 13.0g of sodium with 12.75 g of chlorine: 2Na…

A: Given, 13.0 g of sodium with 12.75 g of chlorine. The given balanced chemical equation is, 2Na + Cl2…

Q: Imagine you wanted to produce 5 moles of H,(g). How many moles of Mg and HCl are needed? Mg(s) +…

A: The given data: The moles of H2 produced = 5 moles To determine = The moles of mg and HCl needed.

Q: Change the 160g of NaOH to moles step by step

A:

Q: 10. What is the molar mass of diphosphorus pentaoxide? * this is incorrect 80 g/mole 284 g/mole 150…

A:

Q: find a) calculate the moles and grams of hexamminecobalt(III) trichloride Table: Chemical Name…

A: Mole can be used as convert between  mass and number of particles . 1 mole of substance  is equal to…

Q: Calculate the number of moles of chlorine in 5.25 g of MgCl2? O 0.0879 mole chlorine O 0.0110 mole…

A:

Q: How many moles of glucoseare present in 50.0 grams of an aqueoussolution that is 2.50% by mass…

A: Given that: 50.0 grams of an aqueous solution that is 2.50% by mass glucose. So mass of glucose in…

Q: 8) How many moles of NO will contain 7.89 × 1020 m

A: One mole of any compound contain Avagadro number of molecules. Avagadro No. (Na) = 6.022 × 1023

Q: Mg(s) + 3 N2 (g) --> 2 MgN3 (s) How many grams of N2 will be used to produce 85.5 moles of MgN3?

A: We have given that   The balance chemical equation :    2Mg(s) +  3N2(g) -------> 2MgN3(s)

Q: Determine the number of moles in 4.74 × 10²³ formula units of MgCl₂.

A: Given, 4.74 × 10²³ formula units of MgCl₂

Q: What is the mass percent of ethanol (CHCHOH) if 0.0793 moles of ethanol is added to 0.264 kg of…

A: The mass percent of a component present in the mixture is given by equation (1), in which, mc…

Q: Question attached

A: One mole of a substance is something that has exactly Avogadro's number of particles (6.022 × 1023).…

Q: How many moles of C are formed upon complete reaction of 2 mol of B according to the generic…

A:

Q: 1. If the waste you have contains 100.0 grams of silver nitrate, how many mols of silver nitrate is…

A: The relation between mass and number of moles of any substance is given by - Number of moles =…

Q: A 508-g sample of sodium bicarbonate (NaHCO3) contains howmany moles of sodium bicarbonate?

A: The answer to the following question is given as -

Q: Acetic acid (HC2H3O2) is diluted with water to make a solution of vinegar. You have a sample of…

A: In the given solution the amount of solute, acetic acid is = 12.3 g We know that the molar mass of…

Q: How many formula units of CaCO3 are contained in 350. g CaCO3?

A:

Q: What is the mass percent of ethanol (CHCHOH) if 0.0796 moles of ethanol is added to 0.257 kg of…

A:

Q: low many moles of NaCl, if mixed with excess Pb2+ ions in solution, would be needed to form 32.6 g…

A: 2NaCl + Pb+2 ------> PbCl2 + 2Na+ mass of PbCl2 formed = 32.6 g

Q: OAn organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a…

A:

Q: What is the ratio of copper to sulfur (mole Cu/mole S) to the nearest whole number? Moles =…

A: Moles of copper = 63.546 g/mol Mass of copper = 0.4796 g The molar mass of sulfur = 32.065 g/mol…

Q: Excel Assignment After reading the excel tutorial under documents, answer the following questions in…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: On a space shuttle, LIOH is used to absorb exhaled CO2 from breathing air to form LiHCO3. How many…

A:

Q: Now moles: v moles of H2 + v moles of O2- moles of H20

A: given unbalanced reaction, _moles of H2 + _moles of O2 → _ moles of H2O

Q: Mescaline is a hallucinogen in peyote, a cactus native to the southwestern United States and Mexico.…

A: There are certain plants in nature from which drugs are obtained. These drugs are hallucinogenic in…

Q: In the presence of cyanuric acid, melamine can form crystals that potentially cause renal failure if…

A: To find out the which contains the most nitrogen, we need to find out the the moles of nitrogen in…

Q: Bottle Moles of Acetic Acid Moles Sodium Bicarbonate 8.3 x 10-3 moles 2 8.3 x 103 moles 3 8.3 x 103…

A: Sodium bicarbonate,

Q: What mass of carbon dioxide can be produced the from burning of 25.0 g of hexane

A: combustion of the hydrocarbon is the reaction in which hydrocarbon is burnt in presence of the…

Q: Consider the reaction : 2PCl2 + PCl = PCl5 If you react 6 moles of Cl2 how many PCl5 are formed? If…

A: Assuming that PCl5 is formed from PCl3 and Cl2,The balanced equation is given below. PCl3 + Cl2…

Q: Chapter 3 - The Mole, Percent Composition, Empirical Formula and Molecular Formula How to calculate…

A: 1. The formula for percent composition is given by

Q: How many moles of Pb(SO4)2 are equivalent to 186.7 g of Pb(SO4)2 (Mw. 399.34 g/mol)?

A: Number of moles = mass /molar mass