If 1.00 g of gray zinc powder reacts with 0.49 g of yellow sulfur powder, what is the mass of the zinc sulfide product?

Q: The mass of 1570 cm³ of tungsten.

A: 2.  a) given :- volume of tungsten = 1570 cm3  To calculate :- mass of tungsten

Q: What is the mass of 17 oxygen molecules to 3 significant figures?

A: 1mole  O2  molecules weight=32g6.023×1023  molecules of O2  weight =32gtherefore,  1molecules of  O2…

Q: If 2.43 g of magnesium burns in oxygen to produce 4.03 g of magnesium oxide, what is the mass of…

A: The given mass of magnesium is 2.43 g. The given mass of magnesium oxide is 4.03 g.

Q: The mass of silver in a 9.000 g of silver chloride,AgCl is ?

A:

Q: In a combustion reaction, 46.0 g of ethanol reacts with 96.0 g of oxygen to produce water and carbon…

A:

Q: If 20 g of calcium are found in the compound calcium chloride, how many grams of chlorine are…

A: Molecular formula of calcium chloride: CaCl2 Molar mass of Ca: 40.08 g/mole Molar mass of Cl: 35.45…

Q: What is the mass of 4.27 moles of lithium nitrate?

A: Mass = Number of moles x Molar mass Molecular formula: Ti(NO3)4 Molar mass of Ti(NO3)4 = 295.89…

Q: What is the mass of 2.2 × 109 carbon dioxide molecules?

A: The number of entities in one mole of a species equals 6.022 x 1023, this value is known as…

Q: Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom and…

A: Given :  Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom…

Q: what is the mass in grams of 125 iron atoms?

A: Given that: Number of iron atoms = 125 Atomic mass of iron =  55.845 g/mol

Q: If 10.11 g of limestone decomposes by heat to give 8.51 g of solid calcium oxide and carbon dioxide…

A: Limestone is a type of carbonate sedimentary rock which is composed 0of the minerals calcite and…

Q: Sodium Chlorate is heated to yield Sodium Chloride and Oxygen. If you begin with ten grams of Sodium…

A: Applying concept of limiting reagent and mole concept

Q: Calculate the mass of mercury(II) oxide

A: Ideal Gas Law;-  PV = nRT  P = pressure of gas  V = Volume of gas  n = no. of moles of gas  R =…

Q: What is the mass percent of chlorine in sodium chloride?

A: Mass of one mole of chlorine=35.43 Mass of one mol sodium chloride (NaCl)=58.44 g The mass…

Q: What is the mass of calcium (in grams) that can be recovered?

A: moles of Ca5OH(PO4)3(s) obtained at the end of the reaction = 0.06 mmol * 10-3 mol1 mmol= 6.00*10-5…

Q: Which law states that a compound always contains the same elements in the same proportion by mass?

A: This law was stated by Joseph Proust who was a well-known French chemist.He gave this law as a…

Q: In the following situation explain its validity. Mr. Soon Shiong decides to show the class a…

A: Given: Mr. Soon Shiong decides to show the class a chemical reaction by taking 500g of a white…

Q: What is the mass, in grams, of 557 copper atoms?

A: We have to calculate the mass, in grams, of 557 copper atoms.

Q: Tylenol is a widely used over-the-counter analgesic and antipyretic . The molar mass of Tylenol is…

A:

Q: According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form…

A: According to the law of multiple proportion, two atoms combining in different ratios to form…

Q: Estrogen (estriol) is a steroid that has the formula C18H2403. What is the mass of carbon in a 50.0…

A: Given:  Molecular formula of estrogen= C18H24O3  Mass of estrogen given= 50g

Q: When 3.723 grams of copper are reacted with oxygen, the mass of the copper oxide that is formed is…

A:

Q: In an experiment, the reaction of 100.0 g of iodine produced 144.9 g of a compound formed from…

A:

Q: How do I determine the number of atoms for a given element that are in a compound?

A: Some rules should be followed to calculate Number of elements in a compound.

Q: How many elements are known at present?

A: Element is a pure substance and it cannot be broken down into simpler pure substance by chemical…

Q: Would the mass percent of copper in (either) copper oxide be greater than, less than, or equal to…

A: The amount of moisture will add to the total weight of Copper oxide first. so the mass percentage of…

Q: What is the percent mass of carbon in H2C2O4?

A: Hydrocarbons are compounds made up of carbon and hydrogens. An organic acid is an organic compound…

Q: - Part A If Avogadro's number of pennies is divided equally among the 276 million men, women, and…

A: We know that, Avogadro's number of pennies = 6.022 x 1023 pennies. Convert these pennies into…

Q: How many atoms of gold are in 1 gram of gold?

A: Given, 1 gram of gold

Q: (a) What percentage of the electrons originally in the cube was removed? % (b) By what percentage…

A:

Q: What is the mass of 9.19X10^24 molecules of carbon dioxide?

A:

Q: What mass of barium bromate, Ba

A:

Q: 16. While cleaning your attic, you find your old rock collection. If 74.2% of the rocks have a mass…

A: If a substance is present in more than one form then average mass of that substance given by…

Q: Upon decomposition, one sample of magnesium fluoride produces 1.66 kg of magnesium and 2.58 kg of…

A: The values are given as follows:

Q: A certain ore is 30.3% nickel by mass. How many kilograms of this ore would you need to dig up to…

A: Introduction: We have to calculate the mass of ore.

Q: What is the mass of copper  g what is the mass of chloride g given copper chloride 1.652g mass of…

A: Mass of copper = (mass of evaporating dish + copper) - (mass of empty evaporating dish) Mass of…

Q: A 67.2-g sample of a gold and palladium alloy contains 2.49x10^23 atoms. What is the composition (by…

A:

Q: The mass of an average neon atom is 20.2 atomic mass units. One atomic mass unit is equal to…

A: The term atomic mass unit can be defined as the unit of mass which is used to express the atomic or…

Q: Upon decomposition, one sample of magnesium fluoride produced 2.55 kg of magnesium and 3.99 kg of…

A: Given information, Magnesium is produced from the first sample is 2.55 kg. Fluorine is produced from…

Q: A mole of lithium atoms has a mass of 6.941g. What is the mass in grams, of a single lithium atom?

A: Number of moles of any substance can be calculated with the help of molar mass of the substance and…

Q: Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.58 kg of…

A:

Q: How much would a 138g piece of iron occupy?

A: Density of a substance is defined as the ratio of mass of substance and volume of that substance.…

Q: From a 2.650 g sample containing only iron, sand, and salt, 0.651 g of iron and 1.048 g of sand were…

A: The total mass of the sample is = 2.650 g The mass of iron is = 0.651 g The mass of sand is = 1.048…

Q: The mass of 1570 cm³ of tungsten

A:

Q: nonmetals?

A: Non-metals are defined as elements which are present on the right side of the periodic table, it can…

Q: Upon decomposition, one sample of magnesium fluoride produces 1.65 kg of magnesium and 2.57 kg of…

A: The amount of magnesium produced on the decomposition of sample (I) of MgF2 is 1.65 kg. The amount…

Q: If the mass of a pure silver (Ag) coin is 15 g, then how many Ag atoms are present in this coin?

A:

Q: What is the volume of water graduated cylinder mass = 75.00 water mass = 45.00, water +bic mass =…

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.