3. Perform the following calculation and report the answer to the proper numbers of significant figures. a.) 14.5 + 0.023 _b.) 13.265 - 2.065 _c.) (5.5 x 10-6)2 _d.) ( 7.613 x 108) (1.0132 x 10-2) _e.) (1.552 x 10-2), (1.6 x 103)
Q: Which numbers have four (4) significant figures? Choose all that apply. 3.925 x 1023 4.5 x 103…
A: Significant digit : Any combination of digit which starts from the far most left digit which is non…
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: What is the Density of Cl2 is represented by 18.8L at 2.68atm 23.9°C Express your answer to 2…
A:
Q: 1. When expressed as 7.5x10^4, only the significant figures of are to.be considered. (1 point) O 7.5…
A: The notation of digits written in a format is called significant number.Typically after decimal four…
Q: A small beaker was found to have a mass of 27.847 g. A 10.00 mL sample of an unknown liquidwas…
A: Answer :- 1.225 (g.mL-1) Density of unknown liquid (solution) = 1.225 g.mL-1…
Q: II 8TIIL! US ng TaUie 2.9 UI page II II your tCxID0OK, IUchtIly tne 3U03UICC. USIlng 245a l,20 7Lx…
A: Methyl mercury levels higher than 3.00×10-4 mg/dL are toxic to central nervous system. Whether the…
Q: Twelve (12) samples were weighed on a balance, their combined mass is 13.62 g. With the…
A: Given :- total samples = 12 combined mass = 13.62 g To be calculated :- average mass of each…
Q: 6.7321x0.0021 in to a Significant figures and measurement
A: Rules for Significant numbers: Any non-zero number is significant. Zeros between two significant…
Q: 2. Complete the blanks in each row as in the first: a) underscore the last significant figure in the…
A: Solution: We have three rules for significant figures 1.Non-zero digits are always significant. 2.…
Q: 4. How many significant figures are present in the measurement 0.053402 mm? How many are in…
A: According to the rule of significant figure- If value is less than 1 then digit count start from…
Q: unknown
A: Mass of liquid = ( final mass of erlenmeyer flask ) - ( initial mass of erlenmeyer flask ) Mass of…
Q: 1.The literature for a pharmaceutical product states that 26 patients of the 2, 103 enrolled in the…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: 5-Perform the following calculation and report the result to the correct number of significant…
A: There are two rules of significant figures that are involved in calculations : a) The rule in…
Q: My Data: 0.033 g/mL Class Data: 0.02904 g/mL 0.0256 g/mL Based on my results (0.033 g/mL), is the…
A: Measurements are taken repeatedly to confirm the value obtained and to ensure that findings are of…
Q: What is the standard practice for significant digits when recording test data? Why are significant…
A: 1. Most standards for science and technology, led by ASTM E29, use the “five-even” rule. Under this…
Q: metal strip is 1.11 cm long and 0.33 cm wide. The area in square centimeters to the correct number…
A: We have given that 1. A metal strip is 1.11 cm long and 0.33 cm wide. The area in square…
Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…
A:
Q: 5. Perform the following conversions: (a) 72.3 mg to g, (b) 6.0x10 1m to mm, and (c) 325 mm to um.…
A: 5) Here, we have to convert : a) 72.3 mg to g b) 6.0×10-10 m to mm c) 325 mm to μm
Q: Perform the following calculation and input the answer expressed to the correct number of…
A: Perform the following calculation and input the answer expressed to the correct number of…
Q: Calculate these masses.(a) What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3?(b) What…
A: Mass of a substance that is present per unit volume is known as density ofthe substance which may be…
Q: Question 10
A: Intensive properties:It can be used to identify a sample as these characteristics do not depend on…
Q: What is the density of an object of mass 200.00 g and volume 25.0 mL? 1._______ / 2._______ =…
A: Given: Mass of object = 200.00 g And volume of object = 25.0 mL.
Q: Volume of water in cylinder 21.6 mL Mass of empty beaker 75.360 g Mass of beaker with water 97.315 g…
A: Volume of water in cylinder 21.6 mLMass of empty beaker 75.360 gMass of beaker with water 97.315…
Q: Carry out the following mathematical operations and answer the questions that follow. 33.916 x 95.7…
A: The significant figure refers to particular digits in a number. According to the measurement rule,…
Q: 4. Show the answers with appropriate number of significant figures. 39.9 а. 6.022 x1023 b. 0.0021 g…
A: In case of multiplication or division, the least number of significant figures in any number…
Q: where the numbers 2 and 3 in the last term are exact 1.67 Carry out each calculation, paying special…
A:
Q: A sample of waterer (density is 0.998 g/mL) is measured to be 25.7mL. What is the mass of water in…
A: Mass = Volume x density
Q: In England the price of gasoline averages around $1.59 per liter. Using unit analysis, calculate…
A: Given that:- Price of gasoline=1.59 $/L determine cost in $/gal=?
Q: Write 3.280x104 J as a normal, decimal number without any scientifc notation. Pay attetion to…
A: Correct option is C. 0.0003280 J.
Q: 1. Using your textbook or other resource, write the accepted relationship between the inch and the…
A: 1. Given that : We have to write the relationship between an inch and a centimeter.
Q: Fill in the blanks with the correct answer: 1-The answer rounded to the correct number of…
A: 1Given that2.430+1.871×10-2×4.672⇒2.430+0.01871×4.672⇒2.44871××4.672⇒11.44037312⇒11.44 After…
Q: 2. The number of significant figures in the number 2101.010100 is
A: 2101.010100 To find out the significant figures of given value.
Q: A student places 14.8 mL of water in a graduated cylinder. The mass of the water and the graduated…
A: As the metal pellets are added into the cylinder the volume of the cylinder changes as the metal…
Q: Conversion factors and signify I can't figures: 1,888 quarts to pints How do I know how many…
A: Conversion of 1,888 quarts to pints:
Q: what determines how many figures are significant in reported measurement values? What would be the…
A: In reporting measured values, the degree of uncertainty of a number read from a measurement…
Q: Measurements: Density of a Saline Solution Data: Record all data with correct units and significant…
A: The mass of saline water is calculated as shown below. mass of saline solution=mass of beaker-Total…
Q: Subtraction - express all answers in the correct significant figures - be sure to include units…
A: Significant Figures - They indicate the reliability of a number that tells us how many digits are…
Q: 1.Density of lead is 11.3 g/mL. How many mL do 29.1 g of lead occupy?
A:
Q: Perform the following calculation and input the answer expressed to the correct number of…
A: The significant figure rule for the division and multiplication is that the final number should…
Q: Compare: number of plates, N W₁ = 2.5; W₁l = 3.0 I 0.18 0.16 0.14 0.12 0.1 11 0.08 0.06 0.04 0.02 0…
A: No of plates = N = 5.54 * (Retention Time / Half of base width)2
Q: 4- Perform the following calculation and report the result to the correct number of significant…
A: The correct option is D i.e 2.8 as we significant upto 2 decimal places then 2.81690 = 2.8
Q: When reporting the mass of weighed solid, one should write all numbers in the digital scale estimate…
A:
Q: Determine the number of significant figures. 1. 3.4 / 0.025356 + 236.00 - 76.357 2. 5.6786 +…
A: Significant figures are the figures that are necessary to indicate quantity of something.
Q: Perform the following calculation. How many significant figures should your answer be reported to?…
A: The expression given is,
Q: 2. Complete the blanks in each row, as in the first: a) Find and underscore the last significant…
A:
Q: density of water initial mass of erlenmeyer flask 118.957 g final mass of erlenmeyer flask 128.896…
A:
Q: Consider the operation below. (0.523) (1.2161 -0.99) + (2.648) (84 - 81.98) 0.87 How many…
A: The given operation has both addition/subtraction and multiplication/division. In…
Q: 32 Density and Specific Gravity 3) Suppose t Questions: bilo2 boqst would be 1) A block of wood 22.0…
A:
please show solution and type it
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Consider multiplying “26.2” by “16.43.” What would a mathematician say the answer is? What would a scientist say? Justify the scientist’s answer, not merely citing the rule, hut explaining it.How to properly use significant figures in this case?Ccal = (-ΔHrxn x nLR)/ΔTCcal = (-55.85 kJ/mol x 0.00100 mol)/5.3°CCcal = ?????? It would help if you can clarify the rules for multiplication and division. Thanks!density of unknown liquid initial mass of erlenmeyer flask 119.528 g final mass of erlenmeyer flask 127.382 g mass of water 10.00 g volume of water 10.00 mL what is denisty of unknown liquid? average density of liquid g/mL, show calculations:
- Volume of water in cylinder 21.6 mLMass of empty beaker 75.360 gMass of beaker with water 97.315 gMass of water in beaker ______ gDensity of water _______ g/mLCalculate the average density you determined for this unknown liquid and record below. [_________ g/mL +_________ g/mL] / 2 = _____________g/mLA group of five students attempted to estimate 100 g of a substance by balancingthe amount of the substance with a 100-g standard mass and obtained the followingmasses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078g, 98.2865 g, and 86.4453 g. Create a data table as shown below and use the datato determine the answers to the following questions:Mass (g) Deviation (g) % Deviation Error (g) % Errora) What is the mean? And what is the true value?b) What are the deviation and % deviation from the mean for each value?c) What are the error and % error for each value?What is the Density of Cl2 is represented by 18.8L at 2.68atm 23.9°C Express your answer to 2 decimal places and use the proper abbreviation for the Units
- A student obtains the following data: a- Mass of evaporating dish 21.345 g b- Mass of evaporating dish and saturated NaCl solution 42.817 g c- Mass of dish and NaCl after evaporation 38.915 g Report the Mass % of NaCl in this solution. Write the number as a percentage with the correct number of significant figures as shown. (i.e. 25%) There should be no space between the numbers and the % sign.(a) How many significant figures should be reported for thevolume of the metal bar shown here? (b) If the mass of thebar is 104.72 g, how many significant figures should be reportedwhen its density is determined using the calculatedvolume?The mass unit associated with density is usually grams. If the volume (in mLmL or cm3cm3) is multiplied by the density (g/mLg/mL or g/cm3g/cm3) the volume units will cancel out, leaving only the mass units. Keep in mind that the volume and density must use the same volume unit for the cancellation. If a large marshmallow has a volume of 3.00 in3in3 and density of 0.242 g/cm3g/cm3, how much would it weigh in grams? 1 in3=16.39 cm31 in3=16.39 cm3.
- Chemistry A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Mg, g Final buret volume, mL Pbarometric, in Hg PH2O, torr T, °C 0.035 41.86 27.02 17.5 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal.A wooden object has a density of 12 g/mL and a volume of 7 mL. What is the mass of this object? 3. A lab measures a piece of crumpled aluminum and finds its mass to be 14.3g and itʼs volume to be 5.26mL. Later on, they have a second piece of crumpled aluminum, which has a mass of 12.3g. Whatʼs the volume of the second piece?density of water initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water 10.00 g volume of water 10.00 mL what is denisty of water? average density of water g/mL, show calculations: