Which quantity would have unlimited significant figures? 12 square feet 12 miles/hour 12 kg 12 eggs 12 meters

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: How many significant figures are in each of these measurements? 93 g, 420210 kg,

A:

Q: Which of the measurements contain four significant figures? 5.0×10^4 3957 1.000×10–3 0.0100 0.0001…

A: Significant Figures - It basically tells us, how much a value is accurate.

Q: Which of the following is the smallest volume? 44 cm³ O 1.0 dL O 5.5 x 10³ mL O 1.0 x 10° nL

A: Since, 1cm3 = 1 ml 1L= 1000 mL 1 dL= 0.1 L 1 nL = 10-9 L then,

Q: Iron has a density of 7.87 g/cm³. If 84.7 g of iron is added to 83.4 mL of water in a graduated…

A: Given -> Density = 7.87 g/cm3 Weight of iron = 84.7 gm  Volume of water = 83.4 ml

Q: Which is the proper conversion factor for converting a mass expressed in pounds (lb) to the same…

A:

Q: A metal cylinder with a mass of 20.37 g was dropped into water contained within a graduated…

A: Given Mass of metal =20.37 g Increase in volume when metal is drop is from 1.23 mL to 12.08 mL

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: Aluminum has a density of 2.70 g/cm3. What is the mass of an aluminum cube with a length of 3.61 cm?…

A: Length, a = 3.61 cm Volume of cube is obtained from length – Volume = a3=3.61 cm3=47.046 cm3

Q: Density of substance can be express in which of the following units? 1.cm^3 2. g/cm^3 3. ML 4.…

A: Density (d) :-  Density of a substance is defined as the ratio of mass of the substance to the…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: Same Units cancel each other if present in division form only. Treat units similar to the numbers…

Q: How many significant figures are there in each of the following numbers? 59.94 0.03484 921.784…

A: Numbers given :  1)  a)59.7 b)0.09902 c) 0.1545  d) 357.58  2)  a) 59.94  b) 0.03484  c) 921.784  d)…

Q: A piece of metal has a mass of 3.873 g. It is placed in a graduated cylinder containing 15.00 mL of…

A:

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

A:

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: The significant figure refers to particular digits in a number. According to the measurement rule,…

Q: The density of a metal is 7.87 g/cm3. Find this density in kg/L (1 cm3 = 1 mL)

A: Given, 7.87 g/cm3   (1 cm3  = 1 mL) Convert to Kg/L

Q: The nurse determines that a newborn weighs 6 lb 7 oz. What would be the equivalent of this weight in…

A: Dimensional analysis is used to convert a physical quantity given in one type of unit to some other…

Q: 3.32 x 10- g to micrograms Express your answer to three significant figures and include the…

A: Given : Value in grams = 3.32 X 10-5 g

Q: 25 cm. What is the density of the rectangular copper block? O 11.1 g/cm3 O 28.4 g/cm3 O 29.0 g/cm3 O…

A: Applying formula d= m/V

Q: flask of mercury has a mass of 76.0 pounds (lbs). What is the mass of the flask in grams?  3.45 x…

A: The mass of flask of mercury  = 76pounds  1 Pounds = 453.92grams

Q: Which of the following represents the smallest mass?a  23 cgb  2.3 × 103 μgc  0.23 mgd  0.23 ge  2.3…

A: We know that, 1 cg = 0.01 g 1microgram =10-6 g 1 milligram = 0.001 g 1 kg = 1000 g

Q: A 12.9 g piece of metal ore has a density of 7.25 g/cm³? What is its volume in cm³? 2.01 .425 6.65…

A: Density (g / cm3) = Mass(g)Volume (cm3)

Q: A person is 1.790 yards tall. How tall is he in cm? 1 yd = 3 ft, 1 in = 2.54 cm O 1.728 cm 4.801 cm…

A:

Q: How many inches are in 382.5 cm? (1 in = 2.54 cm) Multiple Choice O 971.6 in 150.6 in 151 in 6.641 x…

A: We have been given I in = 2.54cm. We have been asked to calculate how many inches are present in…

Q: If the volume of a cube is 21.8 cm3, what is the volume in cubic feet? 54 cm = 1 in, 12 in = 1 ft

A: Given data : Volume of cube = 21.8 cm3 The formula for calculating the volume of cube is  V =…

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: If a large marshmallow has a volume of 3.25 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: The question is based on the concept of physical chemistry. We have to calculate mass of the…

Q: How many acres are in nine hectares? Express your answer using four significant figures. One hectare…

A: We have to predict the area in acres.

Q: If I have a 35 grams block that measures 5cm x 7cm x 2cm, what is the density of the block?

A: Given data,  Mass of a block = 35 grams  Measurement of given block = 5 cm × 7 cm × 2 cm  Density is…

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: In scientific measurements, the significant digits of a number are those digits that carry…

Q: 2.0947 mL X 2.425 mL 642.98 + 79.239 mL mL 2 78.08 cm X 45. cm cm

A: For division and multiplication, the answer should have the same number of significant figures as…

Q: How many significant figures are in each of these measurements? 71. 93 g, 0.420210 kg

A: The significant figure refers to particular digits in a number. According to the measurement rule,…

Q: A cube measures 3.1 cm on each edge and has a mass of 69.4 g. Calculate the density of the material…

A:

Q: Diamond has a density of 3.52 g/mL. What is the volume in mL of a diamond with a mass of 15.1 g?…

A:

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: This problem is based on significant figures.We know that , According to the rule for significant…

Q: An object with a mass of 0.231 kg has a density of 2.02 g/cm3. What is the volume (cm3) of the…

A: Density is the amount of substance present per unit of volume. Density= mass/ volume

Q: 1.165 A steel sphere has a radius of 1.58 in. If this steel has a density of 7.88 g/cm3, what is the…

A:

Q: cm x 4.125 cm mol L -41 m +0.50 s cm X 1.65 L = mol 2 0 S

A: (1) For multiplication and divisionWhen two numbers are multiply and divide then the answer has the…

Q: Diamond has a density of 3.52 g/mL. What is the volume in cubic centimeters of a diamond with a mass…

A:

Q: 3.39×10^−5g to micrograms Express your answer to three significant figures and include the…

A:

Q: 2. What is the density of the solid object that is weighed and submerged in water? 8.24 g 18.5 mL…

A:

Q: What is 1 teaspoon of baking soda converted into nanograms? 1 /2 teaspoon of baking soda = 3 grams

A: Given :-  1 /2 teaspoon of baking soda = 3 grams  To calculate :-  mass of baking soda present in 1…

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.