7 Round off each of the following measurements to three significant figures: 1.614 kg and 74.2587 L

Q: How many miles of iron are contained in 1.55 kg of iron?

A:

Q: -4.0 x 10* A student sets up the following equation to convert a measurement. (The ? stands for a…

A:

Q: Perform the following calculations, and report your answer to the correct number of significant…

A: Significant figures: are defined as the numbers of digits in a value that tells us the degree of…

Q: Write the following in scientific notation and round to four significant figures. 1. 0.0031907=…

A: We have to predict number in scientific notation and round off to 4 Sig figs.

Q: Convert the following measurement. 0.659 g 2 = 0 L mg dL

A: 1 g = 1000 mg1 L = 10 dL

Q: Calculate the following and express your answer in scientific notation with the correct units and…

A: The significant figures of a number written in positional notation are digits that carry meaningful…

Q: Convert 4.369 lbs to grams. (2.2046 lb = 1 kg)

A: Convert 4.369 lbs to grams.

Q: A piece of cardboard is 12.0 cm long and 6.3 cm wide. What is the area of this piece of cardboard in…

A: Given,A piece of cardboard is 12.0 cm long and 6.3 cm wide.

Q: Perform the following calculation and input the answer expressed to the correct number of…

A: Non zero digits are always significant.

Q: Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2…

A: First, the given reactants mass are converted to moles which then used to determine the limiting…

Q: A new temperature scale has been invented called the °GS. If the temperature is -105 °C, calculate…

A: Formula for calculation: C = 3.1/(16.8 - GS) Given that: Temperature in degrees C = -105

Q: 13. The mass of water delivered by a buret is 11.8159 g at 15 °C. What is the calculated actual…

A: Density is defined as mass of the substance upon the volume occupied   density = mass / volume…

Q: Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water.…

A:

Q: 1)  1892.5 mL (2) Using your result in question (1), determine the mass in grams of 0.50 Gal of ice…

A: In this question, we have to find out the correct answer of given problem by the help of the…

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

A: The final result of multiplication and division should be rounded to the same number as the least…

Q: Ammonium phosphate ((NH4)²PO4) is an important ingredient in many fertilizers. It can be made by…

A: Given, Ammonium phosphate ((NH4)3PO4) is an important ingredient in many fertilizers. It can be made…

Q: A jet airplane reaches 865. km / h on a certain flight . How long does it take to cover 459. m? Set…

A: The objective of the question is to find out the time it takes for a jet airplane to cover a…

Q: Is a meter about an inch, a foot, a yard, or a mile?

A: Answer 1: 1 metre = 39.37 inch 1 foot = 12 inch ⇒ 1 metre = 39.37 inch1 × 1 foot12 inch⇒ 1 metre =…

Q: Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs…

A:

Q: The number 114.4335 rounded to 5 significant figures is

A: All non zero numbers are consider as significant figures.

Q: Question 1: Determine whether the answer to each calculation has the correct number of significant…

A: (1)

Q: What is 15,390,000 rounded to two significant figures?

A: Rules for counting significant figures: 1. All non-zero numbers ARE significant. 2. Zeros between…

Q: Question 15 ( Use Scientific Notation (and only scientific notation!) to find the answer to the…

A:

Q: Gaseous methane (CH,) will react with gaseous oxygen (O,) to produce gaseous carbon dioxide (CO,)…

A: The reaction of Methane and oxygen is

Q: Convert the following measurement. 2 2 6 g'cm kg m 1.6 x 10° 2

A: The conversion given is,

Q: Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water .…

A: Combustion reaction - The reaction in which a substrate reacts with gaseous oxygen to produce…

Q: Which of the measurements contain four significant figures? 5.0×10^4 3957 1.000×10–3 0.01000.0100…

A: A multiple choice question based on significant figures, which is to be accomplished.

Q: Calculate the mass, in grams, of each of the following. 2.0x10^23 lead atoms Express your answer…

A:

Q: Consider the following two volume measurements: 57.7 mL and 57.68 mL. Which of these is the more…

A: Accuracy and precision are two measures of observational error. Precision refers to how close the…

Q: A bar of gold measures 0.127 m x 0.0483 m x 0.0155 m. How many gallons of water have the same mass…

A:

Q: Calculate the mass, in grams, of each of the following.   1.6×1023 gold atoms Express your answer…

A: Number of atoms of different elements are given and from that given data, we have to find the mass…

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.