Evaluate: 27.30 g + 12.755 g + 0.055 g = Report answer to the correct number of decimal places and include units.

Q: Use the following information to determined AGran (kJ/mol). 2H₂S (g) + 302 (g)2SO2 (g) + 2H₂O(g)…

A:

Q: A group of five students attempted to estimate 100 g of a substance by balancing the amount of the…

A: Solution It has the average: Mean = (95.8634 + 80.8125 + 106.5078 + 98.2865 + 86.4453) / 5 = 93.5831…

Q: Perform calculation, and give an answer with the correct number of significant figure

A: The significant figure is the number of digits that are considered to have a reliable data source.…

Q: The decimal value 10,000 is equal to which exponential? group of answers 10^4 10^1 10^3…

A: Exponential form is used to represent the repetitive multiplication of same numbers. Given number is…

Q: Please check my math 0.034 L = 0.000034 mL (enter only numerical value, no units) 0.034 X 0.001=…

A: Volume of the substance can be expressed in the units liter and milliliter. One litre (L) of a…

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: State the temperature on the Celsius thermometerB to the correct number of significant figures:

A: Significant figures are the digits of number that are accurate and more reliable value of data.…

Q: The volume of a gas was measured to be 32.74 liters. If the density is 1.19 g/L, what is the mass of…

A: Denisty Formula density = mass of a gas/volume of the gas Given values  Mass of the gas =?  Volume…

Q: Suggest a random error that could occur in trying to measure the volume of the cube using the…

A: Displacement Method:  The objects that are present with irregular shape and it is tough to measure…

Q: Perform the following calculations and record your final answer with the correct number of…

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

Q: express each Fahrenheit scale temperature as aCelsius scale temperature. Round to the nearer tenth…

A: To convert Fahrenheit scale temperature into Celsius scale temperature, the formula used is,…

Q: For Questions #6 through #14, perform all of the following for each question: 1. calculate the…

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

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: Why are repeated trials of the same measurement desirable

A: Repeated trials means measurement of same  data repeatedly.

Q: number 0.00754605000 whenconverted to standard exponential (or scientific) notation becomes ____…

A: We have to convert 0.00754605000 to standard exponential (or scientific) notation

Q: What are the reference points in thermometer with Celsius scale?

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Q: The conversion factor relating feet to meters is 1 ft = 0.305 m. Keep in mind that when using…

A: given, conversion of feet t meters 1ft = 0.305 m

Q: The density of a metal is 8.67 g/cm³. How many pounds are in 298.86 in3 of the metal? (You can use…

A: Given  Density of metal = 8.67 gram/cm3 Volume = 298.86 inch3 Mass in pounds = ?

Q: Calculate to the correct number of significant figures. (24.6681 x 2.38) + 332.58

A: Rules for performing addition and subtraction: Addition or subtraction is performed in a general…

Q: show calculation setups and answers for the following problem:  A metal sample weighs 56.8 g. How…

A: The given sample weight in grams is first converted into lb shown as below,

Q: Solve the following for m. Express your answer as an integer: a) −17 + -120/m = 23 (Show your work…

A: We have a) −17 + -120/m = 23 b)112.50 mg - 22.3841 mg + 0.327 cg We know that 1 cg =10 mg or 1 mg =…

Q: Please how did you calculate 1.4007

A: The Kjeldahl method is used to determine the nitrogen content in the sample. This method is used for…

Q: Express your answer to two significant figures and include the appropriate units. HẢ Value Units m =

A: Answer :  Mass of silver= w (let) Molecular weight of silver (M)= 107.86g No. Of electron transfer…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: When 66.875 is added to 18.16, the result should be reported with When 88.94 is subtracted from…

A:

Q: Measurement of the density of a solid object. Sample you are using is Tin Volume of water in…

A: Volume of water in cylinder = 31.5 mL Volume of water in cylinder after submerging object = 36.4 mL…

Q: 2. A straight line has a slope of 3200 and an intercept X?

A: According to the question, we have: Slope = m = 3200 Intercept = c = -0.025 y = 0.450

Q: The numerical value for (5.6 x 104) ÷ (7.89 x 102) is equal to, with the proper number of…

A:

Q: What is the density of an object of mass 45.00 g and volume 25.0 mL? 1._______ / 2.________ =…

A: Given: Mass of object = 45.00 g And volume of object = 25.0 mL.

Q: The density of a metal is 14.97 g/cm3.  How many pounds are in 195.76  in3 of the metal? (You can…

A: To solve this problem first we will use the given unit conversion .

Q: Solve for: 146.381 mL -31.4 mL= report answer to the correct number of decimal places and include…

A: Significant figure represents all the digits of a number that are significant with respect to…

Q: (a) The diameter of Earth at the equator is 7926.381 mi.Round this number to three significant…

A: (a) Given, diameter of earth = 7926.381 mi which is approximate equal to 7930 mi. Hence, the…

Q: The uncertainty in the measurement 0.0035 mg is

A: The mentioning of the number of significant figures is quite helpful in determining the uncertainty…

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

A:

Q: 1.6x103 / 2x103 give answer in exponential form

A:

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: What is the molar mass of alanine, C3H7NO2? • Write your answer using ONE decimal place, even if…

A: Given, Molar mass of Alanine, C3H7NO2 = ? Note:  Atomic mass of C = 12.01 g/mol Atomic mass of H =…

Q: Compute 1240.64 /6.4. Round the answer appropriately. Express your answer numerically using the…

A: Answers are attached below

Q: 8. 9. 7. 17 63 -391 38 -16 62 37 15 61 Graduated cylinders #7-9 were measuring increments of mL.

A: The reading given are,

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: Solution Appropriate range of serious knowledge is vital so as to possess a significant level of…

Q: O4(g) + 2 H₂O( HNO3(aq) + 2NO(g) ess your answer to one decimal place and include the appropriate…

A: According to the question, we need to determine the enthalpy of the reaction.

Q: A volumetric buret should always be read to _______ decimal places.

A: Volumetric buret is a measuring glassware which is used in labs for the accurate dispensing of a…

Q: 1. (2×103g +7.613g)/(0.069cm3 - 0.033cm3) Carryout that operation as if it was the calculation of…

A: The given calculation is of division.The numerator part is addition and the denominator part is…

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: what is the sum of the measured values 539, 35.4, 0.90, and 9.0 ?

A: For the addition of the number first we have to count the significant figures in the in the decimal…

Q: could you please check if my answers are correct? I'm not sure about significant figures...  Thank…

A: Relative error ==change in valueactual value×100 The general rules for determining significant…

Q: 1. Convert 159 cubic micrometers, μm3 to cubic meters, m3

A:

Q: Use the References to access important values if needed for this question. Complete the following…

A: Some important properties  :  1ax = a-x  ax . ay =ax+y    ( ax)y = ax.y axay = ax-y