1) The density of a material can be used to calculate the volume of an object if its mass is known. Likewise, the mass can be calculated if the density and volume are known. A pre-1964 quarter, made predominantly of silver (density= 10.5 g/mL), was determined to have a mass of 6.25 g. What is the volume of a quarter? A. 65.6 B. 0.595 mL C. 1.68 mL D. 6.25 mL 2) Add: 2.11 + 104.056 + 0.1205 A. 106 B. 106.29 C. 106.286 D. 106.2865

Q: When a 306.50 g object is placed in a graduated cylinder containing 85.0 mL of water, the volume…

A: Density of an object can be calculated by dividing mass of the object by its volume. Density =…

Q: A lab procedure requires 2.35g of ethyl alcahol to be dispensed with a syringe. Show a calculation…

A:

Q: A woman is planning on running a 10K (10.0 km) race. a. How many yards will she race? (1 yard = 3…

A: (a)Conversion of kilometers to yards:

Q: The owner of a rock shop claims that a nugget is pure gold. When the nugget is placed into a…

A: Density has formula, Density=MassVolumeMass= Density×Volume

Q: 3. Provide the answer with the appropriate number of significant figures. a. 6.03 x 650 b. 2.7 x…

A:

Q: 3. A rectangular piece of tin foil has a mass of 571 milligrams and measures 5.1 cm by 10.25…

A: Given, Mass of tin foil = 571 mg = 0.571 g     (1 mg = 0.001 g) Length = 10.25 cm Width = 5.1 cm…

Q: 1. Describe how to use conversion factors correctly using an example. 2. Write a number between…

A: Describe how to use conversion factors correctly using an example.Conversion factors are used to…

Q: A rectangular  block has the length of 4.20 cm and width of 1.38 cm.   If the  rectangular block has…

A:

Q: 13. What is the mass (in kg) of 45.3 mL of a liquid that has a density of 0.643 g/mL? a. 29.1 kg d.…

A: The given data Volume = 45.3mL Density = 0.643 g/mal Mass   = ?

Q: Which quantity represents the smallest mass? A. 1.5 x 10-2 mg B. 1500 g C. 1.5 x 103 µg D. 1.5 x…

A:

Q: A piece of copper has a volume 300 L. What is the mass of the sample, in units of grams? Fill in…

A: the Red box is filled as shown below:

Q: 2. Which one of the following is the greatest mass? (Hint: converting all masses to the same unit…

A: Mass is both a property of a physical body and a measure of its resistance to acceleration (a change…

Q: 63. Apply Graph mass versus volume for the data given in the table. What is the slope of the line?…

A: Given,Volume cm3 : 7.5 , 12 , 15 , 22Mass g : 24.1 , 38.5 , 48.0 , 70.1Required,…

Q: A racetrack measures 1.0000 x 103 meters. A racecar completes a lap of this track in 20.4 seconds.…

A: Given: Distance = 1.0000×103 meters Time = 20.4 seconds

Q: L A) 1.897 X 10-³ in² B) 4557. in2 C) 115.7 in² ) 1.897 X 10-¹ in² 3448. in2 4. A lab bench has an…

A:

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: It takes 14.4 galons of gasoline to fill a car's gas tank. How much gasoline is this in liters? (1…

A: Which one of the following answer is correct

Q: A student measures the dimensions of a metal block to be 2.0 cm in length, 1.0 cm in width, and 0.75…

A: a. Given mass of metal = 7.56 g And dimensions of metal block = 2.0 cm in length, 1.0 cm in width,…

Q: What is the mass of a gold block that measures 6.50 cm x 9.00 cm x 3.25 cm? Density of gold is 19.3…

A: To calculate the mass of a gold block that measures 6.50 cm × 9.00 cm × 3.25 cm having a density of…

Q: 4. A liquid has the volume of 12.6 mL. and density of 2.75 g/mL.. Calculate the mass in cg.. O 4.32…

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Q: A sailor circumnavigated the earth and covered 4,264,000 meters. Express this number in standard…

A: we have to answer in standard scientific notation

Q: The density of pure copper is 8.89 gram/centimiter cube (at 20 degree celcius). a. Calculate the…

A: Density of a substance is related to mass and volume of the substance as shown by the equation given…

Q: An irregular sample of zinc has a mass of 23.21g. this sample is carefully placed in a graduated…

A: Density is defined as the ratio of the mass to the volume. The formula for the density is as…

Q: Mercury has a density of 13.6g/mL. What is the volume of 6.42×104g of mercury? A)4.7L B)4.82L…

A:

Q: 2. A 108.948 g metal sample 22.6 mL of water and the water level rises to 34.8 mL. Calculate the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Substance X has a density of 1.33g/mL while substance Z has a density of 2.76g/mL a. if you have…

A:

Q: 4. Write the number of significant figures in each of the following. Write the word exact if the…

A: Rules for deciding significant figures: 1) All non zero digits are significant. 2) All zeros between…

Q: If the density of iron is 7.87 g/cm³, what is the volume of the 12.00 g piece of iron? Use proper…

A: Given that the density of iron is 7.87 g/cm3. The volume of the 12.00 g piece of iron=

Q: What is the density (in kg/L) of a substance that has a volume of 22.0 mL and a mass of 34 g? Oa.…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: 3. A clock gains 0.25 seconds per minute. How many seconds will it gain in exactly 180 days?

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A solid has a mass of 44.197 g.  It is placed in a graduated cylinder that has an initial volume of…

A: Mass of solid = 44.197 g  Initial Volume = 7.30 mL  Final Volume = 9.59 mL  Density = ?

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.