You are in a game show and you are asked to pour a gram of sand in the balance, the person closest to the gram wins you measure 0.894g, individual 2 got 765 milligrams, individual 3 got 1.25g and individual 4 got 0.0489 kilogram what is the percent error for each? which one was more accurate? can the combined measurements be counted as precise?

Q: of 10 A student is measuring the mass of a solid sample using an electronic balance that measures to…

A: The given electronic balance measures to the thousandth of a gram that is 1/1000 g (=0.001g). The…

Q: significant figure

A: A significant figure is the total number of digits in the given number.

Q: Do the following calculations to the correct number of significant figures: a.) 3.8 x 105-8.45 x…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

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Q: A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

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Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

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Q: In the lab a student measured the density of an Aluminum cylinder to be 2.89 g/cm3. The handbook…

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Q: Perform the following mathematical operations, and express the result to the correct number of…

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Q: In an experiment, the temperature of a solution is measured by a student to be 79 degrees, but the…

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Q: graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the…

A: Given: Weight of the graduated cylinder = 35.825 g. The weight of the graduate and water= 45.835 g…

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Q: cubic meters are in 1.95x105 mL

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Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

Q: A chemistry student needs 50.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Given : Mass of diethylamine required = 50.0 g And density of diethylamine = 0.706 g/cm3

Q: Trying to figure out how to convert nanograms to milligrams. There was an example given to me but I…

A: we know,     1 nanogram=1×10-9gram     that  means  10-9g present  in 1 ng     we have  to  convert…

Q: How many significant figures does 40100 mi has? How many significiant figures does 11 degrees…

A: Calculate number of significant digit in the given data---

Q: A patient is prescribed 0.020 mg of a drug that is available in 10 μg tablets. How many tablets are…

A: Given :- amount of drug prescribed by doctor = 0.020 mg               mass of drug in each tablet =…

Q: A student sets up the following equation to convert a measurement.

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Q: An optician measures the diameter of her patient's pupil. The diameter is 0.0023 m. What is the…

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Q: A brick of metal has these dimensions: 9.59 in x 6.09 in x 5.79 in. It has mass 11.7 kg. What is the…

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Q: A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

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Q: Perform the following calculation using measured numbers: 32.56 − 2.4 − 5.783?

A:

Q: A sample of sand has a mass of 51.9 g and a volume of 32.5 cm. Calculate its density in grams per…

A: Given -       Mass of sand = 51.9 g            Volume = 32.5 cm3To calculate : Density in g /cm3…

Q: ) A student measured the volume of a sample and reported the value as 48.93 mL, which digit in the…

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Q: A student measures a block to weigh 127.95 grams what would this mass be in milograms with the…

A: Given – Mass of block = 127.95 g   To find - convert g to mg

Q: in the US system, 1 lb is equal to 16oz. is this a measured or exact statement

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Q: A chemistry student weighs out 0.441 g of citric acid (H,C,H,0,), a triprotic acid, into a 250. mL…

A: Here we first calculate the molarity of the acid then use neutralization rule at equivalence point.

Q: How many significant figures should the answer to this calculation have? 0.998213 g 10.00 mL X mL 1…

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Q: A chemist measures the mass of a 9.0 g copper block 3 times and obtains masses of: 8.9 g, 9.0 g, and…

A: Both precise and accurate  Explanation given as follows

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A: The solution of the question is given below:

Q: Precious metals and gems are measured in troy weights in the English system. The following…

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Q: A marble weighs 3461 µg. How much does it weigh in grams?

A: Given the weight of marble = 3461 µg  We have to convert this weight into grams(g).

Q: How many number of significant figures are in the measurement 3.88 x 10-3 dm?

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Q: (1) Convert 0.50 Gal into mL, using (1 Gal = 3.785 L) as one of the conversion factors. 1 Gal=3.785…

A: 1)  Gallon is the unit to measure the volume of water. 1 Gallon=3.785 L 1L=13.785Gal1L=0.264Galnow,…

Q: A pharmacist measures the mass of a powdered drug. The mass is  681mg. What is the mass in grams?…

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Q: 1.-How many significant figures are in the following numbers? 0.70620 a. b. 5010 4548 C. d.…

A: Rules for Determination of Significant Figures:[i] All non-zero digits are significant.For example:…

Q: Do the following calculation of measured masses from an experiment: 5.656 g + 168.435 g + 75.657 g…

A: Ans  5.656 g + 168.435 g + 75.657 g = 200.404 Value will be till six significant value

Q: 1. Perform the following calculations. Answer with the correct number of significant figures. (Pay…

A: Answer 1:

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Q: Use mass density to find volume (picture is included)

A: Given:Mass of Carbon tetra chloride= 35.0 gDensity= 1.59 g/cc

Q: (a) Convert the following units (show your method of calculations): (i) 63.50 kg = Ib (1 lb = 453.5…

A: (a)  i) 63.50kg = 139.99lb ii) -279.67 oF = 100K [(-279.67-32) X 5/9 + 273.15 = 100K] iii)…

Q: There is a block on your desk that acts as a paperweight. Its   measurements are 3 cm by 4 cm by…

A: There is a block on your desk that acts as a paper weight   Its measurements are 3cm by 4cm by…

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.