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

Q: baking soda, (OH ]-4.7 x 10-0 M Express your answer using two significant figures. VO AEO ? [1,0 ]-…

A: The relationship between the [OH-] i.e hydroxide ion concentration and [H3O+ ] i.e hydronium ion…

Q: A urine sample had a density of 1.030g/ml. What is the specific gravity of the sample

A:

Q: (904.6 - 2.9)/3.52 x 10^4

A: The number of significant figures in the product of the calculation is the minimum number of…

Q: Which piece of equipment gives the lowest uncertainty   Question 15 options:   100 mL beaker   25…

A: There are different type of equipments which can be used to measure the volume of any liquid…

Q: NaOH buret 2nd reading 29,45 32.05 NaOH buret 1st reading 0,02 mL 0.01 mL Slighty derker pinh Light…

A: Formula used : RSD = s ×100x¯ where, RSD = Relative Standard Deviations = Standard Deviation x¯=…

Q: S.I Prefix Multipliers. This table will not be on any future quizzes or exams. (learn these…

A:

Q: Round this addition of measurements to proper sig figs: 23 cm + 111.24cm + 0.0045 cm

A: At the time of addition , round off to minimum decimal number.

Q: Question 5 Convert 4.35 uft (microfeet) to nin (nanoinches). Give your answer in scientific notation…

A:

Q: What is the best way to measure the density of 5 grams of sugar (in a chem lab)?

A: Density is very important concept because, it allows us to determine what substances will float and…

Q: Blood has a density of 1060 kg m−3 whereas the density of the cerebrospinal fluid is 1007 kg m−3.…

A:

Q: 18. A 250.0 kg sample of ore contains 5.91 micrograms of gold. What is the concentration of gold in…

A: The correct option is D

Q: h. 917.2 - 45.63 = Answer: i. 3.423 x 10-4 6.42 x 10-3 = Answer: 3.1 j. 6.300 x 10² + 15.43 Answer:…

A: Step I :-  Rule for significant figuressf in mathematical operations:- I Addition and subtraction…

Q: What is (17.3g  +  2.785g)/30.20mL

A: Given: (17.3g  +  2.785g)/30.20mL

Q: Multiple Choice 017 0.015 0.062 050 012

A: Here the half life of 90Sr is 29 year. We have to determine the fraction of 90Sr left after 175…

Q: A liquid in the lab has a density of 1.24 g/cm. What is the mass in grams of 254 mL of the liquid?…

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

Q: True Value 124 g True Value 1.75 lb 1. 6. Trial # 1 120 g Trial # 1 2.75 lb Trial # 2 121 g Trial #…

A: 1. Mean of the experimental value = (120+120+121)/3  = 120.3 True value = 124g Percentage error = […

Q: Convert 4×10−4 kg to micrograms.

A: Conversion factor is a formula which defined the relation between one set of units of a particular…

Q: 0.1 ml 1 ml 1 ml 0.1 ml 1 ml UUUUU A. B. Original C. 1 D. 9.9 ml 99 ml 9 ml 9.9 ml 9 ml A B D 10 1…

A: Dilution factor is calculated by V2 ÷ V1 During dilution the number of moles remain same, but volume…

Q: Convert and use sig figs 254.3g to kg

A: The number of significant figures in the given problem is four, therefore the final result must…

Q: 5000 -4500 -4000 3500 3000 F2500 2000 F1500 -1000 500 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0…

A: The signal splitting pattern in 1H NMR can be identified using n+1 rule. Where n = number of…

Q: Perform each operation, and report the answer with the appropriate number of significant figures.…

A:

Q: Which of the following three items weighs the most? A. a 100 lb bag of potatoes B. a 15 gallon…

A: A.Of the three given items first consider the 100 lb bag of potatoes. The unit lb is used to denote…

Q: Vinyl chloride (H3ClC2) is a carcinogenic chemical widely found in contaminated groundwater systems.…

A:

Q: 90 80 70 60 50 40 30 10 1000 500 3000 2500 2000 1500 4000 3500 20 % Tlánsmittance

A: D-fructose

Q: Ethanol has a density of 0.79 g/mL. What is the specific gravity of ethanol? 1.1 0.79 4.5 5.4

A:

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: The density of an irregular shaped object was measured three times with the following results: 2.15…

A: Standard deviation: The dispersion of a group measured values from the average value can be known by…

Q: Question 4 Convert 81.9x10-6 Matm to psi. Give your answer in scientific notation (e. g. 1.23E4…

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Q: "unknown A ran 12" 2 1 C: \Bruker\TopSpind.0.9 unknown A run 12 10 [ppm] OL 12 3.0122 6960'Z 6996'I…

A:

Q: (c) 1. THF H2C CEN 7. 2. H30* N(CH3)2 (d) 1. THF H2 N. 2. H30* e2016 Cmgage Laaming

A: Stork enamine alkylation: Stork enamine is an addition reaction of the unsaturated carbonyl…

Q: 3C: C5H10O2 100 88 68 40 4.0 3H 2500 2H 2008 2.0 1741 2H illu 1437 1500 1259- 1197 3H num T 0.5 PPM

A: The correct answer is given below

Q: Identify the compound with molecular formula C8H10O that gives the IR and 1H NMR spectra shown here.

A: Given compound has molecular formula C8H10O. Its IR and proton NMR spectra are given. What is the…

Q: ve a balance with a sensitive requirement of 7mg; 10,25,50 and 100ml graduated cylinder; and 1 oz…

A:

Q: The number of hectograms (hg) in 3.95 x 104 cg is

A: Given: The mass of a substance is given = 3.95 x 104 cg where cg stands for 'centigram'

Q: What is the following conversion?  150 cm =______Mm     0.015        0.000015   1.5x10‑2…

A: The question is solved below:

Q: Three medical laboratories (1, 2 & 3) were measured fasting blood glucose for the same diabetic…

A: In this question we have to give the statement about precision and accuracy. precision define as the…

Q: P1000 Weight 1 (g) Weight 2 (g) Weight 3 (g) Weight 4 (g) Weight 5 (g) 1000 µl 1.1 0.95 0.94 0.98…

A: The volume occupied by a substance provides information about the space occupied by the substance in…

Q: baking soda, [OH ]= 2.1 × 10-6 M Express your answer using two significant figures. (H3O*) = M…

A: The value of hydronium ion can be calculated by using formula  [H3O+][OH-]= 10-14

Q: llowing calculations. Round each result so that it contains only significant digits. The mbers in…

A: Solution -

Q: Calculate the specific gravity.

A: formula,specific gravity=weight of substanceweight of equal volume of water or specific…

Q: Trial 1: 9.865 g Trial 2: 9.996 g Trial 3: 9.563 g Trial 4: 9.658 g Trial 5: 10.235 g Select…

A: Standard deviation (S) is a measure of precision. This quantity is obtained by the summation of the…

Q: Write down the conversion factors for commonly used values of prefixes: (example: 1000g/1kg) kg mg…

A:

Q: 43.0 t 40.0 1 25.3 d 22.0 q b. 70 10 PPM m.

A: The question is based on the concept of Spectroscopy.   we have to analyse the spectra provided and…

Q: 108 mm2 = __________km2   A. 10-6        B. 10-4   C. 102   D. 106   E. 104

A:

Q: D[z] 20 (° mL/ dm g) a () 1 1. +10.5 5.2 kg/ L 35 cm 2. - 15.75 2.3 g/ mL 15 cm 3. + 5.25 +134.45…

A:

Q: Convert 1 PSI (pound square inch) to PSF (pound square feet) :

A: Given :-   1 psi pressure To convert :-  1 psi to psf

Q: What is the actual mass of an organic liquid (d= 0.740 g/mL) which weighed 93.236 g in an analytical…

A: Solution-  Analytical balance -8 g → 1mLSo, 93.236 g   →    93.236 g8=11.6545 mL

Q: A student measured the volume of an object 5 times and got the following results. What is the…

A:

Q: Type the number 8.75 x 10-4 in standard notation. Express your answer using standard notation.

A: Standard notation means number written in extended form.

Q: Identify the conversion factors for the weight. 453.59237 Because 1 lb = 453.59237 g, one conversion…

A: Given  1lb = 453.59237 g  Conversion factor = To be 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.