Report your answer with the proper number of significant figur

Q: Density of water

A: The density of water is defined as the mass per unit volume which would be  a measurment of how…

Q: How would your ratio calculations differ for density if you did not rate the balance?

A: We have to tell how would your ratio calculations differ for density if one did not rate the…

Q: A metal has a mass of 41.7 g and volume 29.7 mL. Find the density of this metal. (Give the number…

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

Q: 29. When a measuring scale is used properly to the limit of preci- sion, the last significant digit…

A: The value which is close the measurement to each other is known as precision.

Q: DETERMINE THE MASS OF A STEEL BEVERAGE CAN FROM 1970'S AND THE MASS OF MODERN A,UMINUM CAN. HOW MUCH…

A: Around 1970's mass of steel beverage cans used was around 42 gm  now a days we are using aluminium…

Q: Read the volume to correct significant figurs. 8

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: 9 water molecule(s) in to grams

A:

Q: Fill in the blank with: greater than, less than, or equal to, as appropriate. The quantity 2513 kg…

A: As we know, 1Kg = 1000g And 1Mg = 0.001g

Q: State the mass for 1 mol of hydrogen fluoride HF. Express your answer to two decimal places include…

A: Mass of one mole of compound is defined as the molar mass of the compound. STP (also called standard…

Q: what is the literature value for the density of water to four significant figures?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

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: 17) Perform the following calculations. Show answer in scientific notation. round the coefficient…

A: To find: (8.9x109)/ (3x106) =: And to write the answer in correct number of significant figures?

Q: Carbon disulfide gas and oxygen gas react to form sulfur dioxide gas and carbon dioxide gas. What…

A:

Q: Convert 0.386 g to milligrams. Use only the metric system.

A:

Q: A supposedly gold nugget displaces 14.4 mL of water and has a mass of 276 g. Part A Calculate the…

A: Density basically expresses direct proportional relation with mass whereas inversely proportional…

Q: Density of Unknown  Liquid, mass of picnometer + liquid is 61.005, mass  of  empty picnometer…

A:

Q: Why should I learn the characteristics of the sigma notation?

A: Learning the characteristics of the sigma notation can be beneficial for a number of reasons. First,…

Q: Study tblem and proposed solution below. Is the final answer correct? Then click the No Mistakes…

A: Given,the mass of object= 275 kgthe momentum of object =346 kg.m/s…

Q: A 33.5 metric ton sample of ore yields 2.95 metric tons of iron. What is the percent of iron in the…

A: Given that,Mass of ore sample = 33.5 metric tonMass of iron = 2.95 metric ton

Q: 31. Express each number in scientific notation.(a) 38,802,000 (population of California)(b)…

A: The given number has to be expressed in scientific notation.

Q: Finding mass /volume/Tempeture with data collection

A: It is given that: Weight of empty 400 mL beaker = 143.018 g Weight of 30 mL beaker and test tube =…

Q: Rounded 17,997 to tow decimal places

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with…

Q: I have the chem 101 app and the question is:     An atom of a particular element has a volume of 7.8…

A: The unit of given volume is to be converted from m3 to cubic nanometres (nm3).Volume = 7.8 ×10-31 m3

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A:

Q: Part B 54.6 g N2 Express your answer using three significant figures. VO AZ ΑΣΦ N = %3D Submit…

A: First of all calculate the moles of N2 by using formula - mole = mass/molar mass

Q: Add the following measurements and report the answer in the correct number of significant figures.…

A: Given a mathematical relation81.058 +0.35add the measurement and answer in the correct number of…

Q: After performing an experiment on density. You found out that the actual density and the calculated…

A: The experiment performed was the determination of density of a substance.

Q: 1. How many in2 are in 450cm2? For your answer enter the first 4 digits of your value.

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: How many moles of water were lost if the amount of water lost was 0.378 grams?  Do not include units…

A: The moles of water that were lost if the amount of water lost was 0.378 grams are to be calculated.

Q: Convert a speed of 715 cm/s715 cm/s to units of inches per minute. Also, show the unit analysis by…

A: Given information,            Speed of 715 cm/s

Q: general chemistry , please solve question 2

A: Nitrogen can form various oxoacids.  The given acids names and structures are written below

Q: Classify the following quantities if extensive or intensive property: 4 a.) Temperature b.) Mass c.)…

A: Given quantities: a) Temperature b) Mass c) Weight d) Volume We have to classify these quantities as…

Q: feet per minute

A:

Q: 1. An object was carefully weighed on three different balances. Each balance was zeroed before…

A: Absolute error: magnitude of the difference between the measured value and the true value. Relative…

Q: Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of carbon…

A:

Q: You must show calculations in to receive credit. 1. A 6.245 g sample of a hydrate has a mass loss of…

A: PART (1)Mass of the sample is 6.245g.Mass loss is 2.525g.Therefore,

Q: D Question 4 Consider an object that is in the shape of a cube with a mass of 45.8 grams. If the…

A: Answer:Density of an object is the ratio of its mass and volume as shown below:Here:

Q: An atom of a particular element has a volume of 7.8 times 10-31m3. What is this volume in Cubic…

A: The unit of given volume is to be converted from m3 to cubic nanometres (nm3). Volume = 7.8 ×10-31…

Q: Evaluate, round to correct sig fig, in scientific notaiton, with correct units:   0.00226 g /…

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

Q: A chemist needs to know the mass of a sample of aniline to 2 significant digits. She puts the sample…

A: Significant figures are the number or digits that are meaningful and are non zero but the zeros…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.