A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 10° kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

Q: A chemistry student needs 85.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, The volume of dimethyl sulfoxide = 85.0 mL The density of dimethyl sulfoxide = 1.10 g.cm-3 We…

Q: A student needs to determine the density of two metal objects. The first object is a cube and the…

A: Given,mass of metal cube = 52.55 g                edge length of a cube = 2.16 cm    2. mass of a…

Q: Water has a density of 0.997 g/cm3 at 25 °C, ice has a density of 0.917 g/cm3 at -10 °C. If a…

A: Given data, Density of water at 25oC = 0.997 g/cm3 Density of water at - 10oC = 0.917 g/cm3 Volume…

Q: Calculating Volume Suppose you want to know the volume of a rectangular object, like one of the…

A: Interpretation - Determine the volume of the rectangular box ( like suitcase) by given method-…

Q: Mass (g) Height (cm) Diameter (cm) Cylinder A 15.560 5.11 1.20 Cylinder B 35.536 5.90 1.30 In…

A: Volume can be calculated using the following equation.

Q: 22 A penny has a mass of 2.50 g and the Moon has a mass of 7.35 × 10²² kg. Use this information to…

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Q: A chemist must dilute 70.4 mL of 9.54 mM aqueous calcium sulfate (CaSO4) solution until the…

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Q: Calculate the mass of gold(III) chloride (Au₂Cl) that contains a million (1.000 × 10°) gold at Be…

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Q: A chemist measures the amount of fluorine gas produced during an experiment. He finds that 72.4 g of…

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Q: A chemistry student needs 90.0 g of carbon tetrachloride for an experiment. By consulting the CRC…

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Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 x 10 kg. 20 Use this…

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Q: Calculate the mass of iron(III) oxide (Fe₂O3) that contains a million (1.0 × 106) oxygen atoms. Be…

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Q: A penny has a mass of 2.50 g and the Moon has a mass of 7.35 × 104“ kg. Use this information to…

A: Here, Mass of penny = 2.50g. Mass of moon = 7.35×1022Kg.

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10 g. Use this information to answer…

A: 1mole brick = 6.022x1023 bricks   so to find the mass of 1mole brick, we just need to calculate the…

Q: A chemistry student needs 45.0 g of thiophene for an experiment. He has available 1.5 kg of a 8.28%…

A: 8.28 % w/w means 8.28 g thiophene in 100 g solution.

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g…

A: According to mole concept, one mole of a substance = One gram molecule = GMW = N molecules Further,…

Q: A chemist must dilute 22.0 mL of 45.9 µM aqueous magnesium fluoride (MgF₂) solution until the…

A:

Q: Ammonia chemically reacts with oxygen gas to produce nitric oxide and water. What mass of ammonia is…

A: Moles of oxygen can be calculated as:

Q: Gaseous methane (CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂)…

A: Given:mass of methane (CH4 ) = 1.1 gmass of Oxygen (O2 ) = 7.93 gmolar mass of CH4 = 16.04…

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10²7 g. Use this information to…

A: 1mole brick = 6.022x1023 bricks   so to find the mass of 1mole brick, we just need to calculate the…

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 119.4 g of potassium iodide…

A: The concentration of a solution represents the amount of the solute with respect to the mount of the…

Q: Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water .…

A: Combustion reaction - The reaction in which a substrate reacts with gaseous oxygen to produce…

Q: 865×[1259−(3.98×106)]. Express your answer to the appropriate number of significant digits.

A: In this, first subtraction has to be done.  The values given in the brackets is multiplied and then…

Q: A chemist adds 1.27 L of a 41.5 g/dL calcium bromide solution to a flask. Calculate the mass in…

A: Given that, a chemist adds 1.27 L of a 41.5 g/dL calcium bromide solution to a flask. So, the volume…

Q: Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water.…

A: The combustion reaction is

Q: Five silver coins are added to 454.0 mL of water. The water level rises to a volume of 545.0 mL.…

A: Volume of solution = Volume of solute + volume of solvent

Q: 1. Suppose some measurements are made on two different homogeneous stones to find out if they are…

A: Mass and volume are extensive properties which depends upon the amount of the substance and thus,…

Q: A chemist weighed out 7.2g of mercury. Calculate the number of moles of mercury she weighed out. Be…

A: Given: mass of mercury (Hg) = 7.2g  Molar mass of mercury (Hg)= 200.59g/mol

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.