Write the chemical formula for each compound, and then calculate the amount in moles in each sample. d. 78.1 kg of copper(II) sulfate pentahydrate

Q: A 19.33 g sample of Mo, 0,(s) is converted completely to another molybdenum oxide by adding oxygen.…

A: Mass of Mo2O3 = 19.33 g Mass of new oxide = 20.62 g

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

A:

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC). a. CF,Cl2…

A: Solution-  mass of the clorine in the CF2Cl2-=molar mass of colorinemolar mass of the…

Q: Identify which statement is FALSE for elemental analysis. Elemental analysis determines the formula…

A: The FALSE statement for elemental analysis is:a) Elemental analysis determines the formula mass of…

Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

A: Mass of mgcl2= 42.74gm Voulme of H2O= 80.3ml

Q: che empirical formula for an ox

A:

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: In order to calculate the empirical formula of each compound , we first need to convert the grams of…

Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

Q: What is the mass of H₂SO4 in an 89.5 cm³ sample of concentrated sulfuric acid that has a density of…

A: The given data is as follows:Volume of sulphuric acid, Density of sulphuric acid,

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: Write a balanced molecular equation describing each of the following chemical reactions. You may use…

A: Water vapour is the water in a vapour state, thus the phase of water vapour is gas. Sodium is an…

Q: mass

A:

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

A:

Q: Calculate the number of oxygen atoms in 25.1 g of nitrous acid. 4.80 x 1023 oxygen atoms O 6.43 x…

A: Given,  Mass of nitrous acid = 25.1 g

Q: Consider these compounds: A. MgCO3 B. Zn(OH)2 C. COCO3 D. Zn(CN)2 Complete the following statements…

A: The compounds are A. MgCO3 B. Zn(OH)2 C. CoCO3 D. Zn(CN)2

Q: An air conditioner compressor contains pure CClF3, also known as the refrigerant R-13. CClF3 has a…

A: We know that, density can be expressed as the mass per unit volume, i.e.…

Q: A 0.549 g sample of manganese metal reacts with excess sulfur to give 1.191 g of manganese sulfide.…

A: Given that -  Mass of manganese sample = 0.549 g  And, mass of manganese sulfide = 1.191 g    Now,…

Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: has a molar mass of 99.0 g/mol. Analysis of a sample shows that it contains 24.3% c and rest is…

A:

Q: iron (II) phosphate Ca3(PO)2->Fe,N +COCNJ2+FePo4 1. How many grams of calcium phosphate must be used…

A: The stepwise solution is as follows -

Q: Without using a calculator, which has the greater mass: One mole of carbon atoms or one mole of…

A:

Q: a. A 9.475 gram sample of copper is heated in the presence of excess chlorine. A metal chloride is…

A: Given question related to calculating empirical formula of metal halide formed when metal is heated…

Q: 3. Suppose the reaction system has already reached equilibrium. Energy + 2NO(g) +O2(g) 2NO2(g)…

A:

Q: A 4.00 g sample of a hydrate of nickel(III) bromide looses 0.793 g of water when heated. Determine…

A: It is given that the mass of hydrate of nickel (III) bromide is 4 gOn heating it losses 0.793 g of…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Weight of Co = 0.672g Weight of As = 0.569g Weight of oxygen = 0.486g Atomic weight of Co =…

Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

A: Given: Mass of hydrated barium chloride = 5 g Mass of sample after heating = 4.26 g The loss of mass…

Q: How many grams of sodium bicarbonate are in 4.5 moles of sodium bicarbonate (84.007 g/mole)? O 189.0…

A: Moles = mass/Molar mass

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

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

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: For each of the following gemstones, determine the mass of compound present in the given moles of…

A: Given  1) Formula = Be3Al2(SiO3)6     Number of mole = 0.0170 mole        mass    = ? 2) Formula   =…

Q: Calculate the number of moles in 0.48 g of copper. O 0.033 mol O 1.3 × 102 mol O 7.6 x 10-3 mol O…

A: The objective of the question is to calculate the moles of copper.

Q: 5. Lead metal can be extracted from a mineral called galena, which contains 83.2% lead by mass. A…

A: Given,mass of ore = 6.75 kgmass percent of lead in the galena = 83.2 %mass percent of galena in the…

Q: 1. Calculate the number of moles of chlorine in 2.34 x 1019 molecules of chlorine.

A: The question is based on mole concept. we have to calculate number of moles in given molecules of…

Q: A researcher exposes 11.89 g of pure iron to a stream of oxygen gas until it reacts to produce16.99…

A:

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.