Knowledge Check Question 16 Add or subtract the following measurements. Be sure each answer you enter contains the correct number of significant digits. 19.527 mL + 13.67 mL I mL 11.900 mL + 2.5 mL O mL %3D 11.800 mL 3.9 mL mL %3D

Q: What of these are correct conversions for kg to mg? Select all that apply. 1 mg = 10³ kg 1 mg = 1000…

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Q: A patient provides a urine sample. The density of the patient's urine is 1.0160 g/mL. What is the…

A: Specific gravity of a substance is the density of that substance with respect to reference. The…

Q: 7. За. 10 L%3D 8.6000 ml = ml ml

A: Given : We have to convert L to mL, ml to L and L to ml

Q: Multiply or divide the following measurements. Be sure each answer you enter con 183.34 m 0.55 s %3D…

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

Q: Convert 72.9 in to centimeters ADD FACTOR ANSWER RESET *( ) 1 185 0.39370 72.9 12 2.54 875 6.08 16.4…

A: Here we have to convert 72.9 inches to centimeters.

Q: A chemist makes 890. mL of calcium bromide (CaBr₂) working solution by adding distilled water to…

A: Volume of working solution (V1) = 890 mLMolarity of working solution (M1) = ? Volume of stock…

Q: Part A What is measured on the horizontal axis? ▼ The horizontal axis measures time, in minutes. The…

A: In this question, a graph is given. We need to find horizontal axis and some data related questions.…

Q: 0.000 012 58 L Express your answer using three significant figures. 0.00 L

A: The answer to the following question is given as -

Q: The accepted value of the melting point of aspirin is 135°C. Trying to verify that value, you obtain…

A: Average melting point for the measured reading taken by the first person is calculated as shown…

Q: 250:5 ml c 250:5 ml in 20e 250 250 200 200 150 150 100 100 50 The mass of this rock is 45g.…

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Q: Question 11 of 20 Ascorbic acid (C.H&O6) is also known as Vitamin C. What quantity in molecules of…

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Q: QUESTION 3 From the figure of a pipet given, what is the reported volume reading? 6.8 mL 5.72 mL 5.7…

A: From the given figure : reported volume reading = ?

Q: Which number is smaller? 9.997 x 10-6 km or 9.997 x 10.2 cm

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Q: None

A: Introduction:The problem deals with the concept of acid-base titration, which is a common analytical…

Q: A human hair is 75 um across. How many inches is this? STARTING AMOUNT ADD FACTOR ANSWER RESET *( )…

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Q: Convert 3.2 ft² to square inches

A: This question is based on conversion of units where given physical quantity needs to be converted…

Q: What is the mass of an object with a volume of 5.0 cm³ and a density of 6.0 g/mL? (Consider the…

A: Volume(V) = 5.0 cm3density(d) = 6.0 g/mLmass(m) =?

Q: A regulation NBA basketball has a surface area of 283 square inches What is the surface area of this…

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Q: Calculate the volume in liters of a 0.054 mol/L copper(II) sulfate solution that contains 7.00 mol…

A: The objective of the question is to calculate the volume in liters for the given solution.

Q: Which of the following values have 4 significant figures? (Select all that apply) A. 0.001562 B.…

A: We have to find out among the given values, which of them having 4 significant figures. The given…

Q: You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2…

A: Given: Volume of copper = 335 cm3 Density = 8.96 g/cm3

Q: Convert the measuring units as indicated. 1. 10560 ft = mi 2. 21120 ft = mi 3. 8800 yd mi %3D

A: 1 mile (mi) = 5280 feet (ft) 1 mile (mi) = 1760 yard (yd)

Q: NSCI- Chemistry  Answer only 10-12

A: Units of measurement are necessary to measure the quantities. There are instances when the measuring…

Q: 1 ! 500 L QUESTION 4 How many pascal (Pa) is 7.5x10-2 mm Hg? 100 Pa 9.97x10-7 Pa 5.78x104 Pa 10.0 Pa…

A: The objective of this question is to convert a pressure value from millimeters of mercury (mm Hg) to…

Q: 4. 5 mi = 5. 2 mi = 6. 8000 g = ft yd kg

A: • We need to convert 5 mi into _____ ft    • Since, we know that 1 mile (mi) = 5280 feet (ft)…

Q: A patient was given 2,486mL of fluid; how many quarts of fluid was given to the patient? 2.635 mL 3…

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

A: Given Three different measurements of an object 10.35 g ; 10.355 g ; 10.30 g

Q: 3.554 g - 0.23 g   7.5 m x 125 m x 2.00 m   352.5 m ÷ 11.0 s

A: Given :- 3.554 g - 0.23 g 7.5 m x 125 m x 2.00 m 352.5 m ÷ 11.0 s  To solve :- given problems with…

Q: The density of mercury is 13570 kg/m3. What is the volume of 3.67 kg of mercury at 25 C? Answer in…

A: Given : density of mercury = 13570 Kg/m3  And mass of mercury = 3.67 Kg

Q: A chemist prepares a solution of silver(II) oxide (AgO) by measuring out 0.00336 μmol of silver(II)…

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Q: O Macmillan Learning The length of a pencil is measured with two rulers. Report the length of the…

A: The second ruler has divided 1 dm into 10 equal parts, thus by using this ruler we can measure the…

Q: Blueberry high-fiber muffins contain 55 % dietary fiber by mass. If a package with a net weight of…

A: The percentage of dietary fiber in muffins is = 55 % The weight of six muffins is = 14 oz Mass of…

Q: Which of the following conversion factors is incorrect? 1 in/2,54 cm 1 yd/1.094 m 1 kg/2.205 lb 1…

A: The given question contains units of length and mass. We have to check whether each option given is…

Q: Multiply vide the following measurements. Be sure each answer you enter co 552.8 g 0.50 mL %3D x10…

A: Given, Multiply divide the following measurements: 552.8 g ÷ 0.50 mL = ? g/mL 435.31 g ÷ 0.80 mL = ?…

Q: Please correct answer and don't use hand rating

A: Step 1: Identify the conversions to be usedlet:cal = caloriekcal = kilocaloriekJ = kilojoule 1 kcal…

Q: conversion factor n/1 cm

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Q: Experiment 3 Repeat the experiment above (Question 2) using a 10 mL pipette to dispense the 10 mL of…

A: The mean weight, standard deviation and the RSD of the water dispensed is needed to be calculated.…

Q: Which number does NOT have three significant figures? 0.012 O 37.0 3.70 x 105 0.0307 O 0.0370

A: • Significant figures are meaningful digits which are known with certainty.  •There are certain…

Q: The gasoline in an automobile gas tank has a mass of 60.0 kilograms and a density of 0.752 grams per…

A: Given :  Mass = 60.0 kg  Density = 0.752 g

Q: What is the density, in g/mL, of a metal that has a mass of 230 mg and a volume of 12 mL? g/mL Is…

A: We are given mass and volume of metal and we are asked to calculate density of metal.  Formula used:…

Q: The displacement volume of an automobile engine is 167 in^3.What is this volume in liters?

A: Recall the relation between in3 and liter           1 liter=61.0237 in3 Given that displacement…

Q: Which piece of equipment would be BEST to measure 5 mL of a liquid? O A disposable dropper A 10 mL…

A: In the laboratory, the small, as well as the large volume of the solution, is required to do the…

Q: Which of the following measurements corresponds to the graduated cylinder shown in the figure below…

A: A graduated cylinder is shown in the figure having an uncertainity of The uncertainity of a…

Q: A chemist must dilute 86.8 mL of 61.7 μM aqueous zinc oxalate (ZnC₂04) solution until the…

A: • For initial solution of zinc oxalate,Concentration of the solution (M1) = 61.7 μMVolume of the…

Q: Question 12 A student calculates the following deviations: d1 = - 1.02 % d2 = + 1.01 % d3 = + 1.01 %…

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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.