an object hass a mass of exacty 5g on an analytical balance that has an accurary of 0.1 mg , to how many significant figures should this mass be recorded ?

Q: Do you round the vant hoff to the nearest whole or leave it as a decimal?

A: Depression of freezing point of an electrolyte solution : when a non volatile solute added in a pure…

Q: A large stone weighs 53.0 kg, how many pounds does it weigh?

A: Given: Mass in Kg = 53.0 Kg.

Q: how many grams are in 11 kilograms and how many millilters are in a 0.076 liters?

A: It looks like there are two parts in the question. Please find the solution below,Part a:  How many…

Q: A stainless steel rod has a density of 8.55 g/cm3 and a diameter of 5.43 cm. If we want a 556 gram…

A:

Q: Lithium is the least dense metallic element. Its density is 0.534 g/mL. What is the mass of lithium…

A: Given : Density = 0.534 g/mL Volume = 1.00 in3 Convert in3 into mL as follows. 1 in3 = 16.3871 mL

Q: is it possible for the calculated answer from a mulitplication or divison problem to contain more…

A: The significant number of answer in multiplication and division is determined by the number having…

Q: What is an exact number? How are exact numbers treated dif-ferently from other numbers in a…

A: The significant figures can be defined as the digits in the given number that carry some meaning and…

Q: The state of Colorado is listed in a road atlas as having a population of 5,546,574 and an area of…

A: Given information,        Population in Colorado is 5,546,574         Area of Colorado is 104,091…

Q: 1.7 What Are Density and Specific Le volume of a rock weighing 1.075 kg is 334.5 hat is the density…

A: Density  = Mass (g) Volume (ml)

Q: 0.007 decigrams is equal to how many micrograms?

A: 0.007 decigrams is equal to how many micrograms has to be given.

Q: the long ton is exactly equal to 2240 Ib. what is the mass of 1.0 long ton in kilograms?

A: Mass is a base SI unit, which is expressed in the units of kilogram. The other units for the…

Q: what is the sighnifcant figure of 100.21x 0.38

A: Significant figures : Significant figures are the number of digits in a value, often a measurement,…

Q: If 12.87 mL of a salt solution weighs 13.357 g, what is the density of the salt solution?

A: The relation between mass, volume and density is as follows : Density = mass/volume

Q: If a stufent dropped their copper on the floor,they could carefully pick it up and place it on the…

A: While weighing compounds using balances, it is very important to take care that all sources of error…

Q: A 25 gram sample of a solid is placed in a graduated cylinder and then the cylinder is filled to the…

A: Mass of the solid = 25 g.Given, Mass of benzene + mass of solid = 58.8 g.So, mass of the benzene =…

Q: Ca(s) + O2(g) + S(s) → CaSO4(s) [?]g 6.400 g 3.206 g 13.614 g According to the law of conservation…

A:

Q: The mass of an object was determined using two balances of different precisions. Balance 1 gave 5.40…

A: Given, mass using balance 1 = 5.40 g mass using balance 2 = 5.390 g

Q: An old rule of thumb in cooking says: “A pint’s a pound the world around.” What is the density in…

A: Solution- Since, 1pt=11 b 11b=453 g =473.176 millilitres

Q: How many siginificant figures in 3.14x10^23?

A: Solution Significant figures ar any non-zero digits or at bay zeros. they are doing not embrace…

Q: A cube of an unknown metal measures 0.375 cm on one side.  The mass of the cube is 0.474 g.  Which…

A: Given : length of metal cube = 0.375 cm  And mass of cube = 0.474 g

Q: A mouthwash is 21.6% ethanol by mass. If each botte contains 0.358 pt of mouthwash with density of…

A: The mass of ethanol in each bottle is calculated as,

Q: the density of copper is 8.94 g/ml. If you have a 3.50 g piece of copper , what voulume will it…

A: Density of a substance is defined as the mass per unit volume. Here given mass of Cu piece is 3.50 g…

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and wei wire is pulled off to wind a…

A: Given: Diameter of the gauge is 0.080mm The weight of the gauge is 705.g The weight was reduce due…

Q: on average a drop of water has a volume of 50.0 microliters. What is this volume in dekaliters?…

A: Given :- volume of a drop of water = 50.0 microliters  To convert :- given volume to decaliters…

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 650.1 g Br2F6? Put the answer in the box in regular (non-scientilic) notation.…

A:

Q: How manny aspirin tables can be made from 100.0g of asprine, if each tablet contains 5.00 grains of…

A: Numbers of aspirin tablets that can be made from 100.0g of aspirin are to be calculated, if each…

Q: A block of wood weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of 11.0…

A: Given: Mass of wood = 64.02 g. And dimensions of wood = 15.0 cm × 11.0 cm × 5.50 cm.

Q: An object is determined to have a mass of 0.00180 g . How many significant figures are there in this…

A: Significant figures – calculation rules are as follows,Significant figure is a non-zero number…

Q: Automobile batteries contain sulfuric acid, which is commonlyreferred to as “battery acid.”…

A: Given, Density = 1.28 g/mL 38.1% sulfuric acid by mass. Mass of battery acid =1.00 gal

Q: If a liquid has a density of 1.04 g/mL, what would its density be in lb/in3?

A: Given  liquid has a density of 1.04 g/mL,  To calculate : density in  lb/in3

Q: Conversion factors and signify I can't figures:  1,888 quarts to pints  How do I know how many…

A: Conversion of 1,888 quarts to pints:

Q: A sample of a liquid solvent has a density of o.915 a ImL. Hhatis the mass of 85.5mL'ofthe liquid? 9

A: Interpretation-  To determine the mass of a liquid sample where given density is 0.915g/mL and given…

Q: having so much trouble understaning how to convert quantites from one metric unit to another how do…

A: Given,0.01 mmol

Q: You weigh an object on a balance and read the mass in gramsaccording to the picture. How many…

A: Significant figures are digits that carry meaningful contribution to its measurement.   By looking…

Q: A piece of silver (Ag) metal weighing 1943 g is placed in a graduated cy reads 260.5 ml. From these…

A: Ans  Density = mass in gm/ volume in cm3 Given mass = 194.3g Volume = 260.5mL = 260.5 cm3 (1 mL =…

Q: Prior to 1983, pennies were made almost entirely of copper. If the scrap value of copper is $3.89…

A: Given: Mass of each penny = 2.95 g = 0.00650364 lb Scrap value of copper per pound = $3.89 Number of…

Q: The U.S. quarter has a mass of 5.67 g and is approximately1.55 mm thick. (a) How many quarters would…

A: It is given that a U.S quarter has a weight of 5.67 g and has a thickness of 1.55 mm. and it needs…

Q: How many mg of iron (MM = 55.845 g/mol) are in 15.00 mL of a solution that contains 2.130 mg…

A:

Q: Which is the smaller volume? 514 uL or 0.584 mL? Please show calculations.

A:

Q: A particular paint has a density of O.914g/cm3. You need to cover a wall that is 7.6m long and 2.74m…

A: Given data  Density of paint = 0.914 g/cm3  Length of wall = 7.6 m Height of wall = 2.74 m Thickness…

Q: How many mL of 0.888 molar magnesium chloride must a scientist pour into a beaker to have 19.0 g of…

A:

Q: How many significant figures does 31.03 g + 12 mg has?

A: First convert 12mg into g by multipy 10-3 So 12mg=0.012g 31.03+0.012= 31.042 So minimum 2…

Q: An unknown liquid has a density of 0.83g/mL.  How many are needed to obtain a mass of 32g?

A: Density of a substance is defined as the mass of a substance present in the given volume of…

Q: 3. The mass of a gold nugget was measured and found to be 0.00320 grams. How many significant…

A: 3) Given : mass of gold nugget = 0.00320 g

Q: In Mexico, avacodos are 48 pesos per kilogram. What is the cost, in cents of an avacodo that weights…

A: The cost of avocados is to be indicated in cents for the weight of 0.45 lb using given data. Given:…

Q: How many mL of 0.799 molar magnesium chloride must a scientist pour into a beaker to have 16.1 g of…

A: given, molarity of magnesium chloride = 0.799 molar weight of magnesium chloride = 16.1 g

Q: Perform the following calculation. How many significant figures should your answer be reported to?…

A: The expression given is,

Q: The area of a telescope lens is 7903 mm² (a) What is the areain square feet (ft² )? (b) If it takes…

A: a) Conversion of mm into feet: 1 feet=304.8 mm1 mm =1304.8 feet=0.00328084 feet Calculation of area…

Q: the mass of fuel in an airplane must be determined before takeoff. A jet contains 11505L of fuel…

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

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.