A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 10 g. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

Q: A student is determining the density of an unknown metal with a mass of 32.56 g. The student…

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Q: An iron atom has a mass of 9.27 x 10 23 g and a cooking pot has a mass of 0.500 kg. Use this…

A: 1 mole of a substance contains Avogadro's number (6.02 X 1023) of particles.

Q: A chemistry student needs 10.0 mL of chloroform for an experiment. By consulting the CRC Handbook of…

A: Given data: The volume of chloroform = 10.0 mL. The density of chloroform = 1.48 g.cm-3. To…

Q: A chemist adds 900.0 mL of a 3.98 g/dL barium chloride (BaCi,) solution to a flask. Calculate the…

A: To solve this problem we will calculate the mass of BaCl2

Q: A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: The density is an intrinsic property that given the mass of an object per unit volume.…

Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: In the lab a student measured the density of an Aluminum cylinder to be 2.89 g/cm3. The handbook…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: An arctic ecologist measures the thickness of an ice floe. The thickness is 0.241 m. What is the…

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Q: Determine the volume of a cube that has a length, a width and a height equal to 2.30 cm, 1.80 cm and…

A: It is given that:Length = 2.30 cmWidth = 1.80 cmHeight = 2.20 cm

Q: Bob and Jill are measuring the height of Mr. Chenet (Mr Chenet is 1.8593 meters tall). Bob gets a…

A: Accuracy It is defined as the closeness of measurement to specific value means we will have one…

Q: Consider the jar of jelly beans in the photo. To get an estimate of the number of beans in the jar…

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Q: Calculate the total mass of sodium chloride in the world's seawater. The total volume of seawater is…

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Q: A chemistry student needs 30.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Ans

Q: A chemistry student needs 50.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Given : Mass of diethylamine required = 50.0 g And density of diethylamine = 0.706 g/cm3

Q: A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL. What is the density of the…

A: For division: In any problem, the minimum number of significant figures in any number is used to…

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: Lead has a density of 11.34 g/mL. Oxygen has a density of 1.31 x 10 g/mL. 17,18) What volume, in mL,…

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

Q: A bar of gold with a mass of 2060.5 g has the following dimensions: 7.30 cm by 3.25 cm by 4.50 cm.…

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

Q: A chemistry student needs 20.0 mL of pentane for an experiment. By consulting the CRC Handbook of…

A: Given data: The volume of pentane = 20.0 mL. The density of pentaane = 0.626 g.cm-3. To calculate:…

Q: A chemistry student needs 40.0mL of pentane for an experiment. By consulting the CRC Handbook of…

A: Given,Density = 0.626 g/cm3,Volume = 40.0 ml.

Q: A sheet of aluminum (Al) foil has a total area of 1.000 ft^2 and a mass of 3.806g.  What is the…

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Q: Two identical sized sheets of copper and gold are placed side by side on a table. If the copper…

A: Density of gold is 19.3 g/cm3 & density of copper is 8.96 g/cm3. Now, let the cross sectional…

Q: There are exactly 60 seconds in a minute, exactly 60 minutes in an hour, exactly 24 hours in a mean…

A: 60 smin ×60 min1 hour ×24 hour1 day ×365,24,daysolar year  =31556736 s/solar year

Q: A chemistry student needs 55.0 mL of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: A chemistry student needs 10.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: Given that: weight of tetrahydrofuran = 10 g density of tetrahydrofuran = 0.889 g. cm-3

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

A: 85 ml of diethylamine is taken.  The density of it is 0.706gcm-3

Q: A chemist adds 355.0 mL of a 1.81 × 10 umol/L mercury(I) chloride (Hg, Cl,) solution to a reaction…

A: Moles of Hg2Cl2 added = concentration X volume of solution in L Since volume of solution in L =…

Q: A chemistry student needs 75.0 mL of tetrahydrofuran for an experiment. By consulting the CRC…

A: Density (d) tells us how much mass is present in given volume of solution. It is calculated by…

Q: A chemistry student needs 65.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: The relation between mass and volume is given by: Density = mass / volume so, mass = density x…

Q: Three blocks of the same shape and size are placed in front of you. Block A has a mass of 3.0 g,…

A: Three blocks A, B, and C of the same shape and size are considered. This implies that they have the…

Q: If you are walking at a speed of 2.5 miles an hour how fast are you moving in kilometers a min.…

A: The speed in kilometers (km) per minutes, it is to be determined. Given: speed = 2.5 miles/hr 1 mile…

Q: A rectangular block of aluminum has a mass of 39.589 g with dimensions of 5.10 cm by 2.50 cm by 1.15…

A: Here we need to calculate the density of the aluminum block. We know that, density is defined as the…

Q: 2- Suppose that a liquid is 11 times denser than water. If you were to sip this liquid on the top of…

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Q: 1) A sample of metal has a mass of 95.3 g and a volume of 21.6 mL. What is the density of metal X?…

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Q: Iron has a density of 7.87 g/cm^3. If 15.1g of iron is added to 25.9 mL of water in a graduated…

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Q: A brick of metal has these dimensions:  4.45 in  x 4.08 in x 7.23 in.  It has mass 16.1 kg.  What is…

A: Given: Dimensions of brick = 4.45 in × 4.08 in × 7.23 in And mass of brick = 16.1 Kg = 16100 g…

Q: An empty beaker weighs 25.49 g. A) When completely filled with water, the beaker and have a total…

A: To solve this we have to use  Density = Weight / Volume  First we calculate the volume of container…

Q: A block of lead has dimensions of 4.5 cm by 5.2 cm by 6 cm. The block weighs 1587 g. From this…

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Q: A student wondered if their necklace was real silver. They weighed the necklace and found it was…

A: Density (d) :-  The ratio of mass of a substance to its volume is called density of that substance…

Q: 1000 900 800 700 600 500 400 300 200 100 A sample of liquid has a measured volume of 561 mL. 1. How…

A: Given : volume of sample = 561 ml To find : 1). Significant figures 2). Scale divisions in ml 3).…

Q: A chemistry student needs 55.0 g of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given data: The mass of dimethyl sulfoxide = 55.0. g. The density of dimethyl sulfoxide = 1.10…

Q: A general chemistry student found a chunk of metal in the basement of a friend's house. To figure…

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Q: A 2.83 g piece of zinc (density = 7.14 g/mL) is added to a graduated cylinder that contains 12.13 mL…

A: According to the question, the graduated cylinder is filled with 12.13 mL of water. A piece of zinc…

Q: Using mass density to find mass or volume Iffat v A chemistry student needs 10.0 g of methyl acetate…

A: Given mass of methyl acetate = 10.0 g Density = 0.934 g/cm3

Q: A chemist adds 750.0 mL of a 207. g/dL silver perchlorate (Agcio,) solution to a flask. Calculate…

A: Given : concentration of AgClO4 = 207 g/dL And volume of solution added = 750 mL

Q: 10 kg. A penny has a mass of 2.50 g and the Moon has a mass of 7.35 x 122 Use this information to…

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Q: The density of silver is 10.5 g/cm³. A piece of silver with a mass of 61.3 g would occupy a volume…

A: density of  a substance is defined as mass per unit volume

Q: A student completed Part C using a small sheet of aluminum metal (d = 2.70 g/cm³). The sheet had a…

A: Given: The density of aluminum sheet: 2.70 g /cm3 Mass of aluminum sheet: 1.4648 g Length of…

Q: Use mass density to find volume (picture is included)

A: Given:Mass of Carbon tetra chloride= 35.0 gDensity= 1.59 g/cc

Q: A chemistry student needs 35.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, volume of dimethyl sulfoxide = 35.0 mL  1 cm3 = 1 mL  35.0 cm3 = 35.0 mL  Density of dimethyl…

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.