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: 4. What is a chemical formula? List some examples

A: Introduction: Introduction: Compounds are formed by the combination of two or more elements in a…

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: Ical formulas of the following molecules. H.

A: Empirical formula of a compound gives the simplest ratio of the number of different atoms present.…

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: 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: 2. Nitrogen and oxygen can form several compounds. Three of them contain 25.9 30.43% and 36.48%…

A:

Q: Determine the number of atoms in 39.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Mass of calcium = 39.0 grams Mass of 1 mol of calcium = 40.08 g. Number of atoms = ?

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

A:

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

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: What information must a chemist have to determine the molecular formula for a compound?

A: Molecular formula is the actual number of atoms of each element in the one molecule of the compound.

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: #2 pls

A:

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: 6. A sample of Magnesium Chloride (MgCl₂) has a mass of 12.94 g. How many atoms of Clare in the…

A: Given = Mass of MgCl2 = 12.94 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: 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: . What is the mass, in grams, of each of the following? a. 2.3*10^-3 mol Sb b. 3.59*10^-2 mol Ba…

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

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: Is wood a metal or nonmetal? 2. Is melon a metal or nonmetal? 3. How many protons, electrons and…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

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: On the planet Kracalac, in another solar system, argon has three naturally occurring isotopes as…

A:

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: Match each item with the correct statement below. produces a hydroxide ion when dissolved in water…

A: produces a hydroxide ion when dissolved in water.  6. Base

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: Write the molecular and empirical formulas of the following molecules. II II

A:

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.