In a lab experiment, 5.2 g of Mg reacts with sulfur to form 12.1 g of magnesium sulfide. How much magnesium sulfide would be formed if 5.2 g of Mg were reacted with 14.1 g of S?   g

Q: Does the percent by mass of each element in a compound depend on the amount of that element used to…

A: The mass percent is calculated by the formula, % mass of element=mass of element in compoundmass of…

Q: In a lab experiment, 7.64 g of phosphorus reacts with bromine to form 66.77 g of phosphorus…

A: law of constant composition:-  a chemical compound always contains its constituent elements in fixed…

Q: Assume the atomic mass of element X is 22.99 amu. A 20.28-g sample of X combines with 16.76 g of…

A: Answer:- This question is answered by using the simple concept of calculation of atomic mass of the…

Q: What number of atoms of nitrogen are present in 3.54 g of each of the following? a. glycine: C2H5…

A: Given, Calculate the number of atoms of Nitrogen are present in 3.54 grams of each of the following:…

Q: A brass alloy contains 78.9% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

A: We have to predict the moles of Zn and atoms of Zn.

Q: nl: 6.98 mol VI: L. n2: 7.94 mol V2: 78.1 L

A: Given that -  n1 = 6.98 mol  V1 = ______ L  n2 = 7.94 mol  V2 = 78.1 L    Now, from following…

Q: number of atoms in 37 g of vanadium

A:

Q: 5. Aspirin has the formula CyH3O4. How many atoms of oxygen are there in a table weighing 360 mg? a.…

A:

Q: A compound was analyzed and the following results were obtained: • Molar mass: 270.4 g/mole • Mass…

A: The chemical formula of an unknown compound is determined by the percent by mass of the elements…

Q: The elements X and Y form a compound that is 33.33% X and 66.67% Y by mass. The atomic mass of X is…

A: The number of mols = weight/ Molecular weight

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

A: Empirical formula: The empirical formula of a chemical compound is the formula with smallest…

Q: 3)A pure copper sphere has a radius of 0.935 in. How many copper atoms does the sphere contain? The…

A:

Q: 47. If a sample of carbon tetrafluoride contains 15.7 g of fluorine, how many grams of carbon does…

A:

Q: A sample of pure carbon disulfide has a mass of 45.05 g. How many molecules of carbon disulfide…

A: Number of mols = weight / molecular weight  Number of molecules  = number of mols × 6.023 × 1023

Q: 1.aDo a mole of Na and a mole of NaCl contain the same number of Na atoms ? Explain your answer .…

A: Same moles of any particle will have same number of that particles .

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

A: A compound containing copper, sulfur, and oxygen was decomposed and the masses of these components…

Q: Gaseous butane will react with gaseous oxygen (02) to pr 1.16 g of butane is mixed with 6.9 g of…

A: Given the chemical reaction between butane gas and oxygen gas. The products of the reaction are:…

Q: A 9.478 gram sample of iron is heated in the presence of excess fluorine. A metal fluoride is formed…

A: The empirical formula represents the simplest whole number ratio of elements present in a compound.

Q: An 86.04 g sample of H2SO4 is 91.22% pure. What is the mass of pure H2SO4 present in the sample?

A: % Purity = (Mass of pure substance x 100)/Mass of sample

Q: Enter your answer in the provided box. Assume the atomic mass of element X is 22.99 amu. A 13.75-g…

A:

Q: The mass of a single nickel atom is 9.75x10-23 grams. How many nickel atoms would there be in 153…

A: Mass of a Ni atom = 9.75 × 10-23 g  Given mass of Ni is   =153 mg *( 10-3 g / 1mg )  = 0.153 g

Q: Elements "X" and "Y" react in two different ways to form two different compounds. 64.128g of "X"…

A: Law of Definite Proportion : This law states that every components in a compound will always contain…

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

A: The chemical formula of a compound provides the number of atoms of different elements present in the…

Q: 5) Naturally occurring chlorine that is put in pools is 75.53 percent "Cl (mass = 34.969 amu) and…

A: Total abundance of the element is 100%. Two isotopes are present.Abundance of Isotope Cl-35 = 75.53…

Q: The chloride of an unknown metal is believed to have the formula MCl3. A 2.395-g sample of the…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

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

A: The mass of constituents are , Na= 10.838 g, S = 7.557 g, O = 15.107 g, Molar masses are, Na=…

Q: A carbon-hydrogen-nitrogen compound has a molar mass of 114.20 g/mol and it has the following…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: What is the molar mass of the solid C 6H8 N4 O 4?     2. The following  18  O  -2. How many…

A:

Q: 2. A given sample of caffeine, C,II,N,0, has 0.23 g of carbon atoms in it. Hle nitrogen atoms are…

A: Mass of C atom = 2.3 g  Molar mass(MM) of C = 12 g/mol Moles of C = mass/MM          = 2.3/12   =…

Q: Popol learns in his biology class that human body is approximately 9.5% carbon. How many moles of…

A: Given 9.5% mass percentage. Using this wa can calculate mass of carbon and then moles.  Further…

Q: 2) How is the mole similar to a dozen?

A: (2) Answer- A mole is a unit of counting particles such as atoms, molecules, ions etc. which…

Q: Part A 284.77 g/mol, CCI Express your answer as a chemical formula. ΑΣφ C. CI6 Submit Previous…

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

Q: Answer the following with complete solution.

A:

Q: An unknown compound has the following chemical formula: CF where x stands for a whole number.…

A: Recall the formula of the unknown compound is C2Fx Given that the unknown compound contains 6.7 mol…

Q: A student, Ken, is given a mixture containing two carbonate compoundscarbonate compounds. The…

A: The given data is as follows- the given mixture is MgCO3 and (NH4)₂CO3 mixture is 69.79% CO3 is by…

Q: Given these masses of elements found in a sample of a compound: 15.27 grams Ca, 4.57 grams C, and…

A: Given data :

Q: You have a 20.0 g sample of silver metal. You are given 10.0 g of another metal and told that this…

A: The situation is possible or not has to be determined.

Q: Q9. Nitrogen is a highly reactive element and has many forms of oxides and nitrogen content of these…

A:

Q: Suppose you have a sample of sodium weighing 11.50 g. How many atoms of sodium are present in the…

A: Information of question ,

Q: 25. A sample of a compound contains 9.49g silver and 3.12g chlorine. A second sample of the compound…

A: Given: 1) A sample of a compound contains Silver with mass = 9.49 g 2) A sample of a compound…

Q: Calculate the number of particles in each sample. Indicate the correct type of particle (atom,…

A: 1- In this question, we will determine the number of particles in the given sample. And also we will…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.