A hardware salesman measures the mass of a box containing 1000 washers. The mass is 1.5924 kg. What is the mass of a single washer in milligrams? Write your answer as a decimal.   ANSWER NEEDS TO BE IN mg

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: What is the volume in liters of 5.687 pounds of gold? The density of the gold is 19.3 pounds.…

A: Given mass of gold = 5.687 pound density of gold = 19.3 g/cm3

Q: Calculate the volume of a box, in cubic centimeters, which is 423 cm long, 12 cm wide, and 25 cm…

A: Given that the length of box (L) = 423 cm, width (B) = 12 cm, and height (H) = 25 cm The volume of…

Q: Ethanol has a density of 0.789 g/cm3. What volume of ethanol in mL must be poured into a graduated…

A: Rules for significant figure  All non zero integer are significant  Exact number have unlimited…

Q: Calculate the mass in grams of 92.6 ml of diethyl ether, an anesthetic that has a density of 0.713…

A: Density is defined as mass per unit volume of a substance. It is an intensive property which depends…

Q: A 10.00 mL solution of a certain food dye has a concentration of 1.47 g /L. What is the total mass…

A: Given: The concentration of food dye  solution, (C) = 1.47 g/L. The volume of the solution, (V) =…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: A pharmacy technician measures the mass of a pill. The mass of one pill is  208   mg . What is the…

A:

Q: a particular stone with a mass of 56.78 g was put into a graduated cylinder containing 11.0mL. The…

A: Density is defined mass per volume and it is denoted by D. D=mV Here m denotes mass and V denotes…

Q: A substance has a known density of 7.81 g/mL. A large piece of it is measured, and the volume is…

A: Here we use the formula   d = m/v.  Where d= density, m= mass,…

Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

A:

Q: A sample of liquid rocket fuel is stored in a sphere-shaped fuel tank that has an inner diameter of…

A: Solution Light metals have high heat unharness, creating them enticing as fuels or fuel elements. As…

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: Density is a measure of mass per unit volume (or mass/volume). The density of Ben & Jerry’s mint…

A:

Q: A metal lump has a mass of 30.000 g. When it is placed in a graduated cylinder containing 20.0 mL of…

A: Density is equal to the ratio of mass and volume. Formula used: Density is generally expressed in…

Q: you measure the initial volume of water in a graduated cylinder to be 23.5 mL and the final volume…

A: According to the question, The initial volume of water in the cylinder = 23.5 ml The final volume…

Q: hardware salesman measures the mass of a box containing  1000  washers.  The mass is  0.7222   kg…

A: We know from the unit conversion in chemistry, to measure small amount we generally used mg,…

Q: How should he record his answer, to the correct number of significant figures?

A: In multiplication rounding off the answer to the least number of significant digits given in the…

Q: A chemist has a block of iron metal (density is 7.87 g/mL). They drop the metal into a graduated…

A: Density of Iron block = 7.87 g/mL Volume changes of water = 2.10 mL

Q: In the lab, a student measures a teaspoon of an unknown liquid. The teaspoon of liquid has a mass of…

A:

Q: Gallium is a solid metal at room temperature but melts into a liquid in your hand. The melting point…

A:

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

A:

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

Q: A chemist has a block of gold metal (density is 19.3 g/mL). The block weighs 2.10 g. What is the…

A: Density  expression-: Division of mass in gram to volume in ml lead to result of density in g/mL.…

Q: A chemist has a block of copper metal (density is 8.96 g/mL). The block weighs 2.30 g. What is the…

A: The volume of the copper block is determined as follows. VCu=mCudCu

Q: The density of a liquid is 2.30 g/cm³. What is its density in lb/ft³? 1 in = 2.54 cm; 1 lb = 454 g 1…

A: Given, Density of a liquid = 2.30 g/cm3 Density of the liquid = ? lb/ft3 1 in = 2.54 cm 1 lb = 454 g…

Q: A marine biologist measures the volume of a seawater sample. The volume is 1285mL . What is the…

A: Given volume is, 1285mL

Q: You put 84 mg/mL solution into a total volume of 177 mL. What is the concentration of the diluted…

A: Initial concentration= 84 mg/ml  Total volume= 177 ml

Q: A rock was found to have a mass of 72.55 grams.  When the rock was placed in a graduated cylinder…

A: The amount of water displaced when the rock was placed in the cylinder will be equal to the volume…

Q: A small cube measures 12.8 mm on a side and weighs 6.23 grams. What is the density of the cube in…

A:

Q: An engine has an internal combustion volume of 3.26 liters. What is that volume in cubic inches?…

A: Given  Volume =  3.26 Liter  Volume in the unit of  (Inch )3. = ?

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 graduated cylinder was filled with water to the 17.2 mL mark and weighed on a balance. Its mass…

A:

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: A pharmacy technician measures the mass of a pill. The mass of one pill is 960 mg. What is the mass…

A: According to the question, The mass of the 1 pill = 960 mg The number of pills = 100 Find- The mass…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

Q: An unknown metal sample weighs 18.1 g. This rubber stopper was placed in the graduated cylinder…

A:

Q: A 1995 penny having a mass of 2.931 g is cut to expose the zinc and dropped into sulfuric acid.…

A: The mass of the given penny is = 2.931 g The mass of the copper shell is = 0.059 g The mass of zinc…

Q: What is the density of this object?

A: Density is the ratio of mass to volume.  density = mass/volume

Q: You weigh a graduated cylinder to be 58.248 grams when it is empty. You then add some unknown liquid…

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

Q: You are using a Pasteur pipet and want to determine the volume of liquid dispensed in a drop. You…

A: From the given figure we can see that the volume of liquid present in the cylinder is approx 1 mL…

Q: The sides of a certain rectangular wood block were measured 0.1294 meters, 7.41 centimeters and 9.4…

A: The volume of a given substance is defined as the amount of the space occupied by the substance that…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.