Round the following according to the correct number of signigicant digit (0.120) (8.206 x 10-2)(273.15+23)/(230/760.0)

Q: The following data were gathered during an experiment on the Analysis of Milk :…

A: Weight of milk sample is equal to the difference in the weights of milk sample and beaker and mass…

Q: At 20oC 25.0 ml of concentrated nitric acid solution was found to have a mass of 32.503 g. What is…

A: Given, Volume of Nitric acid = 25.0 ml Mass of nitric acid = 32.503 g

Q: mony significant figures, Haw in answer (99.2-20.0(1.79XI05) 1.39

A:

Q: Evaluate the following expression to the nearest whole number: 6⁶ × 6⁻⁴

A: Note: Since we solve one question at a time, we’ll answer the first question as the exact one wasn’t…

Q: 548.8 + 0.2 x 55.4±0.6 (1142.9 ± 0.6 – 171.0±0.5) ANS: Absolute uncertainty: Percent uncertainty:

A: The value which gives the range of true value when combined with reported value is known as absolute…

Q: conversion factor

A:

Q: find the volume using the mass and density

A: density = mass ÷ volume  so, volume = mass ÷ density

Q: or the following results:  1.87 g/mL, 1.96 g/mL, 1.88 g/mL, 1.85 g/mL.  If the actual value for the…

A: The approximation error in some data is the discrepancy between an exact value and some…

Q: What is the density of a solid having a mass of 10.0421g measured using analytical balance and a…

A:

Q: What is the uncertainty in the measured value 12.37040 after it is rounded to the following number…

A: Significant figures- Uncertainty in measured value leads to uncertainty in calculated results.…

Q: Which of the following represents the precision of a set of measurements?   A student used water…

A: Given: mean = 2.763 g/mL standard deviation = 0.026 g/mL

Q: In which pair of numbers do both values contain three significant figures? 540 and 544 50.4 and…

A: Rules for significant figures: 1. All non-zero digits are significant. 2. leading zeroes are not…

Q: The radius of a dust speck is 4.5 * 10-3 mm. What is the correct value of thisnumber in decimal…

A: Given The radius of a dust speck  = 4.5 x 10-3 mm

Q: Carry out the following operations provide the answer with the correct number of significant…

A: Answer  Significant figures - Significant figures of a number in positional notation are digits in…

Q: 1. Round the following numbers to the number of significant figures indicated: a) 345 (2 s.f.) _350…

A: " Since you have posted multiple questions with multiple subparts we will solve first 3 subparts for…

Q: Compute 4.659 × 10ª – 2.14 × 10ª. Round the answer appropriately. Express your answer as an integer…

A: We have to compute given equation .

Q: The relative error for the following data below is: 39.83, 39.61, 39.25, 39.68 (the true accepted…

A: Measurement:39.83,39.61,39.25,39.68True value:40.00

Q: 0.000 012 56 L Express your answer using three significant figures. L Submit Request Answer Part B…

A: Given: 0.00001256 L it has 9 significant figures it can be written as  1.25 x 10-5 L has only 3…

Q: Which of these measurements was made with the most precise measuring device: 8.1956 m, 8.20 m, or…

A: Precision is a state to which a process or instrument will give exact values repeatedly or we can…

Q: 9.0x10-2 M NaBrO. Express your answer using two significant figures. ΑΣφ [OH ] = %3D

A:

Q: orm-1 (1).pdf (page 1 of 2) -Edited Q Search 9.51 Length cm mm 1.68 Width cm mm 1.21 Thickness cm mm…

A: Given: Length 9.51cm Width 1.68cm Thickness 1.21cm

Q: Carry out each calculation and report the answer using the proper number of significant figures.…

A:

Q: Solve and write answer in scientific notation with significant digits: 70,000,000 *…

A: Given mathematical expressions are : a). 70,000,000 x 9.8540 x 2.00 x 108   b). 888 x 1014 x  4.00 x…

Q: In the UV assay of paracetamol you are required to weigh tablet powder “…containing 0.150 g of…

A: Answer : 1 tablet should contain  500 mg of paracetamol so  20 tablet contains  = 500*20 = 10000 mg…

Q: cylindrical tank holds 4.0 kL of water. The radius of the tank is 2.25 ft. What is the height of the…

A: Given data set: The capacity of cylindrical tank=  4.0 kL = 4000 L Radius of the tank = 2.25 ft The…

Q: The relative error for the following data below is: 40.63, 40.31,39.95, 39.98 (the true accepted…

A:

Q: What is the proper scientific notation of the value 0.003280?    Group of answer choices 3.28 x 10-3…

A: What is the proper scientific notation of the value 0.003280?

Q: 0.003 grams

A: When you used digital scale then error ( uncertainty ) should be minimum. If you measure the mass of…

Q: Aspirin has a density of 1.40 g/cm. What is the volume in cubic centimeters of a tablet weighing 626…

A:

Q: The relative error for the following data below is: 39.63, 39.61, 39.05, 39.08 (the true accepted…

A:

Q: 0.26 kg x = 2.6 x 10° µg Answer Bank 1g 1 x 10 ug 1 g 1 x 10-3 kg 1 x 10 kg 1g 1 x 10° µg 1g

A:

Q: appropriate number of significant figures.

A:

Q: Ethyl alcohol, also known as ethanol, has a density of 0.79 g/mL. What is the volume, in quarts, of…

A: Given : Density of ethanol = 0.79 g/mL And mass of ethanol = 3.25 Kg

Q: 1) What is the symbol and decimal equivalent for the following metric prefixes: micro and kilo…

A:

Q: A conversion factor is a fraction with one unit on top and a different unit on the bottom. True…

A: Answer Conversion of Fractions means to change the…

Q: If the average density of moon is 5.13 g/cm³, what is the mass of moon in grams? (the radius of moon…

A: Given: Density of moon = 5.13 g/cm3  And radius of moon = 1737 Km = 1.737 × 108 cm…

Q: Perform the following calculations, and report numbers with correct significant figures:  (6.626 x…

A:

Q: Round each of the following numbers to four significant figures and express the result in standard…

A:

Q: Determine the mass of each sample or portion of water added to the 100 mL beaker for each measuring…

A: We have to calculate the mass of each portion of water added to the 100 mL of beaker for each…

Q: A dime has a mass of 2.30 × 10¬3 kilograms and a volume of 0.390 milliliters. a. Using unit…

A:

Q: A student was performing a density experiment in chemistry lab. He used his 10.0 mL volumetric pipet…

A: To determine average density, we need to determine value of density in each trial which is given by…

Q: Express 96.342 m using 2 significant figures   The answer is ……………………………….

A: Given data is 96.342 m  All digits of this number are non-zero Number of non-zero digits in this…

Q: If the denisty of Platnuim is 19.32 g/cm3 what could the dimnesions of a cube be that weighted 1.00…

A: Here given that, The density of platinum (d) = 19.32 g/cm3  And the mass of the cube (W) = 1.0 kg =…

Q: Density of Unknown Liquid TRIAL 1 TRIAL 2 Mass of beaker (g) 29.555 g N/A Mass of beaker and liquid…

A: Analytical techniques give importance to accuracy and precision. Errors can be personal or…

Q: The relative error for the following data below is: 39.63, 39.61, 39.05, 39.08 (the true accepted…

A: Given, The true accepted value , xt= 40.0 Data(s) given = 39.63 , 39.61, 39.05 , 39.08

Q: A mixture that is 5.2x10-2 M in NaC,H3O2 and 5.4x10-2 M in Ba(C2 H302)2- Express your answer using…

A: Given, [NaC2H3O2]=5.2×10-2M[Ba(C2H3O2)2=5.4×10-2M

Q: Based on the given data, what is the Àmax of copp 0.1 M Copper 300 0.157 325 0.233 350 0.465 375…

A: Given : We have to tell lambda max for 0.1 M copper.

Q: A graduated cylinder has markings to the 1mL mark. Which of the following measurements has been…

A: Numbers or digits that carry accurate or meaningful contributions to the measurements are called…

Q: Express 6.0 x 10 m using a prefix to replace the power of ten?

A:

Q: The mass of a compound is taken 5 times with the following results: 26.6mg, 26.3mg, 26.2mg, 26.4mg,…

A: First, the mean of the given result is determined.

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.