A 33.5 metric ton sample of ore yields 2.95 metric tons of iron. What is the percent of iron in the ore?

Q: 50. A 56-g sample of iron reacts with 24 g of oxygen to form how many grams of iron oxide?

A: Interpretation - A 56 g sample of iron reacts with 24 g of oxygen to form iron oxide. The grams of…

Q: which of these would most likely be an gram equivalent mass of copper?

A: 1 Faraday is defined as the amount of electric charge responsible for deposite or dissolve 1 gram…

Q: Use unit analysis to show how to calculate the volume occupied by 15.8 grams of gold. See the table…

A: given :- mass of gold = 15.8 g  To calculate :- volume of gold  note :- The solution of this…

Q: Chalcopyrite, the principal ore of copper (Cu), contains 34.63 percent Cu by mass. How many grams of…

A: Percent by mass can be represented by the formula as; Pecent by mass = Mass of the elementTotal mass…

Q: 2.10x10^23 molecules of water contains how many grams of water?

A:

Q: what is the percent by weight of sugar in soda if the average mass of sugar in soda is 35 g and the…

A: The mass of solute present in 100 g of solution known as the (w/w) percent concentration of the…

Q: One pound of sulfur combines with one pound of oxygen to produce a gas. What is the percent by…

A: Mass of sulphur = 1 pound Mass of oxygen = 1 pound

Q: mL. What is t

A: To find the density of the substance whose mass of the substance is 50g  volume is 85.0ml

Q: What are 2 cups of chocolate chips converted into nanograms? 1 cup of chocolate chips = 170 g 1…

A:

Q: C. Measurements show that 1.0 g of iron (Fe) contains 1.1 x 10 22 Fe atoms. How many Fe atoms are in…

A:

Q: You are asked to perform an experiment to determine the density of square block below. In order to…

A: Concept: Density is defined as mass per unit volume. Density =massVolume

Q: If a gold alloy contains 20% silver and 5% copper, what is the percent of gold in the alloy?

A: An alloy is an admixture of metals, or a metal combined with one or more other elements.

Q: Mass is the measure of what property of matter?

A: Properties of matter are mainly two types such as physical properties of matter and chemical…

Q: What is the meaning of the number of digits reported in a measured quantity?

A:

Q: What is the standard SI unit for mass?

A: Mass is a measure of the amount of matter in a substance. Mass measures the amount of matter…

Q: Why does knowing the mass of an object not help you identify what material the object is made from?

A: Mass is not always the same for objects made from same material.

Q: 1. Imagine if you could zoom in to each state of matter. Draw 10 particles in each state to show how…

A: The three states of matter are the three distinct physical forms that matter can take in most…

Q: Calculate the mass of 65.0 cm3 of mercury.

A: Ans

Q: density of the silver metal.

A:

Q: Is the melting point of a chemical a physical property or chemical property

A: Physical property :-  A property which can be measured without changing the chemical composition of…

Q: How are the molecules in oxygen gas, the molecules in hydrogen gas, and water in molecules differ?

A: Electronegativity of oxygen=3.5 Electronegativity of Hydrogen=2.1

Q: What is the total mass of silver gained or lost?

A:

Q: The density of water in g/mL is:

A:

Q: A sphere of pure iron metalcontains 9.57 x 1024Fe atoms. What is the radius of the sphere in…

A:

Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

Q: 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the…

A: Given that, mass of sample=141 mg mass of watch glass= 9.203 g then,

Q: Fossils show that humans have existed

A: By studying the fossil record we can tell how long life has existed on Earth, and how different…

Q: Homogeneous mixtures(

A: A. distilled water is a pure substance, not a homogeneous mixture. B. gasoline is homogeneous…

Q: If 15 grams of US quarters contain 13.75 g of copper, what is the percentage copper in the quarter?

A: Given data:

Q: 2.3E23 molecules of sugar (CH120,) would weigh how many grams?

A: The moles are the unit of the substance and it is explained as 6.022×1023 atoms/molecules/ions. It…

Q: On average, a drop of water has a volume of 50 microliters. What is this volume in dekaliters ?

A: Units are measurements of particular value.  Measurement is determining how large or small a…

Q: In one experiment you reacted 45.7g of aluminum with 182.8g of iron (iii) oxide to produce aluminum…

A: The chemical equation can be written as: The chemical equation needs to be balanced so that it…

Q: steel is an alloy of iron, carbon, and other metals, typically steel contains 2.14% carbon by mass.…

A: We have to calculate the total mass of steel sample.

Q: A microorganism contains 0.0000046 g of vanadium. Express this amount in scientific notation.

A: Introduction- Scientific notation is the way of representing large decimal numbers in a smaller way.…

Q: 32. Which of the following is a Physical Property of a substance? A) Burning of gasoline B) Cutting…

A: Physical property is measurable. Physical property doesn't change nature of substance. While…

Q: Aluminum is a lightweight metal (density = 2.70 g/cm3)used in aircraft construction, high-voltage…

A: Conversion : 1 kg/m3 = 10-3 g/cm3  density = 2.70 g/cm3              = 2.70 x 103 kg/m3

Q: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A:

Q: What is the mass of your 50-mL beaker in kilograms?

A: Unit of mass of 50-mL beaker is converted to grams:

Q: what is the current prevailing theory on the most basic unit of matter?

A:

Q: What is the si unit for the mass of flour

A: The International System Of Units abbreviated as (SI) is defined as a metric system which is used as…

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

A:

Q: To separate the salt & water, a physical change was used. To separate the hydrogen & oxygen a…

A: Solution :      Physical change can be reversible but chemical change can not some exceptions are…

Q: Although the standard of mass is, strictly speaking, the kilogram, in chemistry we more commonly…

A: Answer - Although the standard of mass is, strictly speaking,the kilogram, in chemistry we more…

Q: 1. Complete the table: Element Physical State Color Luster iron sulfur mercury magnesium

A: The physical state of an element depends on inter atomic forces. The colour and luster of the…

Q: 1. Metal Ore a. element b.compound c. mixture   2.  Grinding dried leaves into a fine powder…

A: We have to classify metal ore and type of change occuring on grinding leaves.

Q: 4.25 x 1024 atoms N converted to grams

A: We have given the atoms of nitrogen = 4.25 × 1024 atoms Avogadro's constant = 6.022 × 1023…

Q: Whut is the density of a sample of gold1a ocudies 186 cm. Molar mass of the metal Your Anwer

A: Given : number of atoms of gold = 1.19 X 1023 atom And volume of sample = 1.86 cm3

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 309. g…

A:

Q: A. The Internal System of Units Fill in the space provided with the correct SI units and symbol for…

A: As per our guideline we can answer only one question  Kindly post other questions seperately   We…

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".