One sample of CaC2, contains 0.150 mol of carbon. How many moles and how many grams of calcium are also in the sample? [Calcium carbide, CaC2, was once used to make signal flares for ships. Water dripped onto CaC2, re acts to give acetylene (C₂H₂), which burns brightly.]

Q: A sample of monochloro tetraborane (10), B4H9Cl, contains 2.5 mol of the compound. Determine the…

A: The objective of the question is to determine the amount in moles and the number of atoms of each…

Q: What is the percentage of hydrogen in C6H14? The molecular weight of C is 12.011 g/mol, of H 1.00794…

A: There are some steps to find percent of an element present in a compound. Those steps are - 1) find…

Q: The molar mass of NBr3 is (2.22 x 10² mol Br₂)(- mol NBr3 g mol NBr3 -) = mol Br₂ g NBr3 mol NBr3 g…

A:

Q: Citric acid was found to contain 37.51% C, 4.20% H, and 58.29% O by mass. What is the simplest…

A: Given :-  Percent composition of C = 37.51%  Percent composition of H = 4.20%  Percent composition…

Q: How many moles of NO3- are in 13.0 g of Ca(NO3)2?

A: 1 moles of Ca(NO3)2 contains 2 moles of Nitrate ions. Nitrate ions (NO3-) present in the sample =…

Q: Calcium carbonate is the active ingredient of some antacids. It is also the compound in the mineral…

A:

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: A compound is 52.14% C, 13.13% H, and 34.73% O by mass. What is the empirical formula of the…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A 2.19 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: The mass of compound containing Carbon, hydrogen, oxygen, nitrogen and sulfur combusted in excess…

Q: A compound, NaClOx, where x is unknown, was found experimentally to contain 29.0 % of chlorine by…

A: Given :  1.Given compound is NaClOx  2. %of chlorine by mass is 29.0 %  To find : value of x

Q: Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by…

A: The given mass of ammonia = 7.5 gThe mass of ammonium phosphate produced = ?

Q: Combustion analysis of 63.8 mg of a C. H, and O-containing compound produced 145.0 mg of CO2 and…

A: CO2 is the product which is containing C, C produced = 145.0 mg CO2 x (1 g/1000 mg) x (1 mole CO2 /…

Q: A sample contains 27.1 g of calcium oxide. How many moles of calcium oxide are in the sample? (Ca =…

A: Given datas ;  Mass of CaO = 27.1 g  Molar mass of Ca = 40  Molar mass of O = 16  So ,  Molar mass…

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

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

Q: A Chlorin oxide is 59.7 % by mass CI. What is the empirical ?formula of the oxide

A: Here i have mentioned the empirical formula

Q: A compound is known to consist solely of carbon, hydrogen, and oxygen. Through elemental analysis,…

A:

Q: 1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and…

A: we have to tell which option is correct from given choices of options by telling  number of atoms in…

Q: Progesterone, a female hormone, has the formula C21H30O2. In a 25.00 g sample of this compound, a.…

A:

Q: A sample of ethanol (C2H6O) contain 3.024 g of hydrogen. How many moles of carbon in the sample?…

A:

Q: Number of atoms of C in 16 moles of C,H10 are: O 6.64x10^23 385.41x10^23 O 24.09x10^23 O 96.35x10^23

A:

Q: Combustion analysis of a compound yields: C 78.52%, H 8.39%, N 8.33%, and O 4.76%. Determine the…

A:

Q: Consider a sample containing 0.750 mol0.750 mol of a substance. How many atoms are in the sample if…

A: The number 6.022 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: * Calculate the number of in 1.2 mol mol molecules C6H12O6 * Calculate the number of atoms in 10…

A:

Q: In 360 grams of Glucose(CGH1206) the number of moles of Glucose present is O 1 O 4 O 3 O 2

A: * Number of moles of substance = Mass of substance/molar mass of substance By using this we can…

Q: 105: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it…

A: 105. Given that,  Volume of 1 drop of water = 0.05 mL Density of water = 1 g/mL Mass of 1 drop of…

Q: A compound contains 38.7% C, 9.7% H, and 51.6% O by mass. What is the empirical formula? O CHO O…

A: Empirical formula can be found out by finding out the no. of atoms of different elements present in…

Q: A sample of hydrate contains 31.75g of MnCl2, and 18.25g of H2O. What is the empirical formula of…

A: Water of hydration: The water molecules that are stoichiometrically bonded with the solid crystals…

Q: 37. Medical implants and high-quality jewelry items for body piercings are frequently made of a…

A: 37. G23Ti or surgical-grade titanium has 64.39 % titanium, 24.19 % aluminum and 11.42 % vanadium…

Q: A chemical engineer has determined by measurements that there are 3.2 moles of hydrogen in a sample…

A:

Q: A 5.31 g sample of compound that contains only hydrogen and sulfur was combusted, and yielded 10.0 g…

A: Moles of hydrogen and sulfur from 10.0g of SO2 and 2.81g of H2O can be calculated as

Q: Phosphorus (P) is element 15 on the periodic table. A sample contains 3.32x1025 atoms of P.…

A: For phosphorous (P) Atomic number of phosphorus = 15 Given,Sample of phosphorus contains = 3.32 ×…

Q: Tetraphosphorus decoxide (P4O10) reacts with water to form phosporic acid, a major industrial acid.…

A: Given mass of Tetraphosphorus decoxide (P4O10) = 21.9 g we know that the following  Avogadro's…

Q: Sodium bicarbonate (NaHCO,) is commercially known as baking soda. How many grams and atoms of oxygen…

A:

Q: Elemental analysis of putrescine indicates that it consists of 54.0% C, 13.73% H, 31.77% N.…

A: 54.0% C, 13.73% H, 31.77% N.

Q: how to determine moleculure/ empirical formula from this  The elemental analysis of a compound…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: Does one mole of K and one mole Ti have the same amount or a different amount of atoms? Explain your…

A: Avogadro number = 6.02×1023

Q: 2H2 + O2 --> 2H2O If you have 50 grams of hydrogen, how many moles of water could be produced?

A: Reaction:-  2H2 + O2 --------> 2H2O Mass of Hydrogen gas (H2)  = 50 g  Molar mass of Hydrogen(H2)…

Q: Suppose 2.60 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2O5. How many moles of…

A: Ans. Dichlorine pentoxide formation: (a) moles of oxygen             2Cl2+5O2 → 2Cl2O5      (2…

Q: What is the mass percent composition of S in Al,(50,,? 21.38 % O9.372 % 42.73 % )35.97 % 28.12 %

A: The compound give is Al2(SO4)3. Assuming 1 mole of the compound. Molar mass of Al2(SO4)3 = Atomic…

Q: mole of Fl(OH)2 would have a mass of how many grams

A: Given -> Molecular formula= Fl(OH)2 Number of mole = 1 mole

Q: An experiment requires that enough PNCl2 be used to yield 10.3 g of chlorine. How much PNCl2 must be…

A: Answer: 16.84 g

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.