A. How many gram-moles of C,Hs are contained in 2 kmol of this substance? 35 45

Q: 1. How many GRAMS of boron are present in 1.31 moles of boron trifluoride ? grams. 2. How many MOLES…

A: Given: The number of moles of boron trifluoride is 1.31 moles. The chemical formula of boron…

Q: water are consumed in the reaction: a. What is the mass, in grams, of one mole of CO? Show your…

A: First convert mass into moles by dividing molar mass then use mole mole relationship Mass of CO=28gm…

Q: You react 2.33 g of iron (III) chloride with 50.0 mL of 0.500 M solution of sodium phosphate to form…

A:

Q: Aluminum has a density of 2.70g/cm³ . How many moles of aluminum are in an a13.2cm³block of the…

A: Given information, Density of aluminium = 2.70 g/cm3 Volume of metal block = 13.2 cm3 Moles of…

Q: 1. How many moles of Ni are there in a sample that contains 16.5 grams of nickel? moles 2. How many…

A:

Q: 1. How many ATOMS of silicon are present in 2.01 moles of silicon dioxide ? atoms of silicon. 2. How…

A: One mole of a species contains avagadro number of atoms , molecules and ions

Q: 7. How many molecules are there in 0.5 moles of H20?

A: 1 mole of a pure substance contains 6.022 x 1023 particles(in this case, molecules). For 0.5 moles,…

Q: .370 mol of octane is allowed to react with .780 mol of oxygen . After the reaction how many moles…

A:

Q: Aluminum has the density of 2.70g/cm3 . How many moles are in a 13.2cm3 block of the metal…

A: At the standard temperature and pressure conditions, density of a substance is given by:

Q: What is the a.) Balanced Chemical Reaction b.) percent (%) composition by mass of each compound…

A: Molecular formula of calcium polysulphide = CaS5 Molecular formula of hydrochloric acid = HCl The %…

Q: When potassium chlorate is burned, potassium chloride and oxygen are formed. A.) Write a balanced…

A:

Q: any GI nt in 2 sphor gram

A: According to the question, we need to determine how many GRAMS of phosphorus are present in 2.59…

Q: If 1.3226 moles of magnesium is heated with 0.3219 moles of nitrogen forming magnesium nitride, how…

A:

Q: How many grams are contained in a 0.183 mol sample of ammonium phosphate?

A:

Q: 5. How many moles are in 77.56 g of CaCO3?

A: Given mass (m) = 77.56 g  We have CaCO3 as the compound here and need to find the no. of moles.…

Q: Given the unbalanced chemical equation, CH3OH(l)  +  O2(g) →  CO2(g)  +  H2O(g),  what is the mole…

A: The balanced chemical equation of a reaction represents the number of moles of each species that…

Q: e percent composition of

A:

Q: Hydrocarbon methane (CHa) during combustion produces carbon dioxide and water. On the other hand,…

A: Introduction The mass of any particular product or reactant species can be derived if we apply…

Q: a. If 1.34 mol hydrogen peroxide reacts, then how many moles of oxygen will form?

A:

Q: 5. If you had 0.0334 moles of paperclips, how many paperclips would you have?

A: Given, Number of moles of paperclips = 0.0334 moles Number of paperclips = ?

Q: Silicon dioxide reacts with hydrogen fluoride to produce silicon fluoride and water. Under ideal…

A:

Q: a. 20g of Argon b. 63g calcium carbonate 3. Calculate the number of molecules in 1.5 mol of hydrogen…

A: number of moles can be calculated as follows;number of moles = mass present / molar mass of…

Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?

A:

Q: 5. When 66.8 g of O₂ gas is mixed with 27.8 g of NH3 gas and 25.1 g of CH4 gas, 36.4 g of HCN gas is…

A: We will first find out the limiting reagent by calculating the effective moles.After finding out the…

Q: do you have to subtract the amount of moles of NO2 after 2 minutes from the initial amount

A: The given reaction is a 2nd order reaction We have to tell why we have to subtract the amount of…

Q: Convert the 123 g of CaF2 to moles.

A: Given information is as follows: The mass of CaF2 = 123 g The moles of a substance can be calculated…

Q: How many moles are contained in 251 grams of Fe2O3? First determine the molar mass of Fe2O3. Can…

A:

Q: 1. How many moles would contain 32.0 g of C ?

A: Given: The atomic mass of Carbon=12 g/mol The given mass of Carbon=32 g

Q: When one gram of each of the following organic compounds is burned (oxidized). which one yields the…

A: Generally when an organic compound is burned, the main product that it produces is carbon dioxide…

Q: 4.2 moles of aluminum hydroxide weighs how many grams?

A: The mole is the unit of measurement for amount of substance in the International System of Units. It…

Q: 46. How many grams are there in 20 mol of FeSO4 · 7H2O? b. 1.26 g a. 0.07 g c. 4600 g d. 5560 g 47.…

A: Since, we know that ; One mole of a substance is equal to 6.022 × 1023 units of that substance (such…

Q: How many moles would contain 12.0 g of P?

A: Introduction: As per the International system of units (SI), the moles is the unit of measurement…

Q: In one experiment, a student used 0.21 g of aluminum and excess hydrochloric acid. a. Calculate the…

A: Given that 0.21 g aluminium react with excess hydrochloric acid.

Q: 3.50L of chlorine gas at SATP conditions is reacted with a 1.05L sample of 0.150mol/L potassium…

A: At SATP: T = 298.15 K = 25oC P = 101.325 kPa= 1 atm

Q: In 3.47x1026 molecules of of C3H7NO2 a.How many moles of C3H7NO2 are present b.How many moles of…

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

Q: How many moles of 02 willy completely react with 6.23 mol PbS?

A: During the reaction between PbS and O2 the PbS converts to PbO and S is oxidized to SO2 from the…

Q: How many molecules are contained in a glass that holds 250 g of water? How many moles does that…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: . Calculate the following: a. Calculate the number of moles in a 56g sample of sulfur trioxide…

A: A) Calculate the number of moles in a 56g sample of sulfur trioxide (SO3).  Molar mass of sulfur…

Q: 28. Calculate the molar mass of each of the following compounds. a. NažPO4 c. Cr2(Cr,O7)3 b.…

A:

Q: If you have 30.5g of Ni(OH)2, please calculate the number of moles this would be equivalent to.

A: Here we shall use the expression which relates the mass with number of moles which is given as:…

Q: Which contains more molecules, a mole of water or a mole of glucose?

A: The question is related to MOLE CONCEPT. MOLE  is an amount of unit similar to other familier units…

Q: a cereal contains 11 grams of sucrose per 60g of cereal. How many grams of cereal must be eated to…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Aluminum (Al) reacts with chlorine gas (Cl2) to form aluminum chloride (AIC13) according to the…

A: Limiting reagent of a reaction will be the compound which is completely consumed in the reaction. It…

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".