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

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: The number of hours per week that the television is turned on is determined for each family in a…

A: Step : 1             The required answer for the question is follow as :

Q: Perform each of the following operations, using your calculator where possible:(a) Write the number…

A: Since we answer only upto 3 sub-parts, we will answer first three. Please resubmit the question by…

Q: Write each of the following numbers as “ordinary” decimal numbers.   6.244 x 103   9.117 x 10-2…

A: The given scientific notation is 6.244 x 103, to write the ordinary decimal notation, the decimal…

Q: 1) Perform the indicated mathematical operations. State the uncertainty of the final answer a…

A: Uncertainty is the measure of mathematical value which is deviated very little from measured value.

Q: Determine the number of significant figures of the following numbers: 0.00087 m 38.09 cal 16.00 oC…

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Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

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Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: We need to calculate %C by mass for n=12 in the formula CnH2n+1COOH  Atomic weights C = 12.01 g H =…

Q: The following statements are correct regarding errors except Random errors are indeterminate but…

A: Systematic errors is a type of error , which does not arise by chance and is introduced due to…

Q: ᴅɪʀᴇᴄᴛɪᴏɴꜱ: ɪᴅᴇɴᴛɪꜰʏ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ᴏʀ ᴘʀᴏᴄᴇꜱꜱ ʙᴇɪɴɢ ᴅᴇꜱᴄʀɪʙᴇᴅ. _________________ ₁. ɪᴛ ɪꜱ ᴀ ᴍᴇᴛᴀʙᴏʟɪᴄ…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: 4 NO2 (g) + 2 H2O (1) + O2(g) → 4 HNO3 (aq) Express your answer using one decimal place.

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Q: 8.2x10 15 Accuracy and Precision Exercise A student uses 4 different instruments to measure 1ml of…

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Q: 8. One way to determine if a relationship is inverse or direct is to find a proportionality…

A: Let us first look at the mathematical background of the terms direct relation and inverse relation.…

Q: Compute the values. Express these answers to the hundredths place (i.e., two digits after the…

A: A common logarithm of a number is defined as a number in which a base of 10 must be raised to obtain…

Q: Part D Complete the fourth row. Express your answer using three significant figures. Enter your…

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Q: ased on the given data, what is the λmax of cobalt?   0.1M Cobalt 300 0.451 325 0.467 350 0.584…

A: Given : We have to tell the lambda max for cobalt.

Q: (a) 0.123 M HONH2 (Ko = 1.1 x 108) (b) 0.123 M HONH3CI (c) pure H20 (d) a mixture containing 0.123 M…

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Q: Show all the work and setps.  Perform the following calculations using your calculator and then…

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Q: What is the result of the following calculation to the correctnumber of significant figures?(6.266 −…

A: (6.266 − 6.261) ÷ 522.0 = ( 0.005) ÷ 522.0 = 9.579 x 10-6  Number of significant figures are 4.

Q: A student determines the density of a metal to be 8.55g/cm3. If the theoretical value is 8.91g/cm3,…

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Q: Is the use of significant figures in each of the following statementsappropriate? (a) The 2005…

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: Evaluate 6×0.222×7.0 and round the answer appropriately. Express your answer numerically using the…

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Q: Convert 9lpg luse 3 conversion factors).

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Q: .c. The relative deviation (d,) of a measurement or experimental data is the deviation divided by…

A: #(c): The values obtained for percent copper(% Cu) are: 17.34%, 17.33%, 17.28%, 17.29%, 17.36%. The…

Q: Carry out the following calculation and select the answer with the correct number of significant…

A: The solution is as follows :

Q: 1. xs NH2

A: The question is based on the concept of organic reactions. we have to identify the reactant and…

Q: When you perform the following operations, how many significant figures should your answer have?…

A: The operation is :  182.000 km + 563.0 dm = ?  Number of significant figures in this operation = ?

Q: 3. Find the density of air at 24°C and 2.026 x 10^5 Pa. One mole of air is assumed to be 79%…

A: PV = nRT 1Pa = 9.869*10-6 atm P = 2.026 * 105Pa = 2.026*105*9.869*10-6     = 1.999atm n = 1 mole T =…

Q: standard notation:  3.92400 x 105      9.2 x 106    4.391 x 10-3  6.825 x 10-4

A: To convert scientific notation to standard notation we have to remove power  Values in standard…

Q: Systematic error causes the mean of a data set to differ from the accepted value. True…

A: The objective of measurement can be qualitative or quantitative. Every measurement has an inherent…

Q: If the specific gravity of a liquid mercury is 13.6, calculate the mass in pounds of 2500  mL of…

A: Given : Specific gravity of mercury = 13.6  And volume of liquid = 2500 mL

Q: A volume of 450 mL syrup (sg = 1.31) is mixed with 350 g of water.  How many mL of syrup should be…

A: Specific gravity Specific gravity of a substance is the ratio of density of the substance to the…

Q: Write the following numbers in official scientific notation (1 digit left of d.p.): a. 345.123 b.…

A: Scientific notations are expressed in the form, a×10b where b is an integer and a is any real…

Q: Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft…

A: Given: Dimensions of Laboratory room: 12.0 ft x 15.0 ft x 9.10ft

Q: Express the answers to the following operations with the proper number of significant figures. A.…

A: In addition and subtraction, the answer should be in the significant figures that are minimum for…

Q: I) Adding and subtracting: evaluate the following problems and use the rliles to round your answer:…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Give the result of the following calculation to the correct number of significant figures. Express…

A: The significant rules are described as follows: 1. In addition and subtraction, the significant…

Q: Foundation Of College Chemistry can you please give me the answer  step by step How many significant…

A: Significant figures are used to express the degree of accuracy of an answer. The rules for…

Q: A student is trying to determine the volume of a flask and compare it to the known volume. After…

A: Given the relative standard deviation(RSD) = 2 ppt or 2% Percent error = 24 %

Q: Calculate the answer, in correct significant figures, of the expression below antilog(2.580) +…

A: Calculate the answer in correct significant digit----

Q: What is the value of the exponent in the answer? 104 (10')(10-7) 12 O 10 O-2

A: We are given the following exponent:

Q: Precision refers to __________. Group of answer choices how close a measured number is to the true…

A: how close a measured number is to other measured numbers is the correct option.     To evaluate the…

Q: 1. A piece of metal was weighed on a laboratory balance five times and gave the following values:…

A: Those digits which has meaning in the given magnitude is known as significant figures. All non-zero…

Q: Perform the following calculation and round to the correct number of significant figures (2.170 x…

A: 2.170 × 3.88 + 1.80  = 8.4196 + 1.80  = 10.2196  ≈ 10.22

Q: Consider the following operations on the number 8.97 × 10–2 Without using a calculator, decide which…

A: Significant numbers are the number of digits in a value, that gives the degree of accuracy of that…

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: X and Y are quantities that are related to each other by inverse proportion, what will the value of…

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Q: 1. Express the following values in decimal notation 1. 4.7 x 10-5 2. 2.75 x 104

A: Decimal notation is the representation of the numerical value in the whole number.

Q: Hi! I m working on a lab right now. I have three measurements, 1.057 .9442 .9629 and a mean…

A: When we do any lab work, then there are different measurements obtained by us for particular test or…

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.