Carry out each calculation and report the answer according to the correct number of significant figures.      a)  53.5 x 0.41      b)  65.2 / 12      c)  25.825 - 3.86

Q: A.1.36 × 10% B. 1.36 x 10 Q3. Precision refers to how a measured number is close to A. Other…

A: Precision is a method to check the validity of the measured values of an experiment.

Q: Question attached

A: we have 4 significant figure. For round up, we can take +1 value for greater than 5.…

Q: A shipping box has a length of 7.00 in., a width of 6.00 in., anda height of 4.00 in. (2.3)a. What…

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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: 3. Perform the following calculation and report the answer to the proper numbers of significant…

A: a) 14.5 + 0.023 = = 14.523         b) 13.265 -2.065 = = 11.2

Q: When 87.7 is added to 73.841, the result should be reported with significant figures. And when 87.7…

A: 87.7+ 73.841= 161.5 87.7÷73.841 = 1.19

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: Balance A: 15.746 g Balance B: 15.75 g Balance C: 15.7 g When the liquid was added to the beaker, a…

A: Given data Volume = 20.10 mL Balance mass A 15.746 g B 15.75 g C 15.7 g…

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: 1) How would you determine the density of an irregular object? A) d = m/v, so measure the mass of…

A: Step-1:    As per our guideline we are upposed to solve 1 question at a time. Please resubmit the…

Q: Carry out the following conversions: (a) 1.42 lightyears to miles (a light-year is an astronomical…

A: b) Given : distance = 32.4 yd Since 1 yd = 91.44 cm Hence distance in cm = distance in yd X 91.44…

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: 3- Perform the following calculation and report the result to the correct number of significant…

A:

Q: Perform the following calculation: g -0.00030- x 20.0°C °C x cm³ What is the answer to the…

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Q: significant figures. 1. Carry out the following mathematical operations, and give each result with…

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Q: Carry out each calculation and report the answer according to the correct number of significant…

A: Carry out each calculation and report the answer according to the correct number of significant…

Q: Multiplication and division of measurements Is this proposed multiplication or division result…

A: The following  multiplication will be as follows :

Q: The beakers shown below have different precisions. a. Label the amount of water in each of the three…

A: Three different beakers are shown in the picture with different precision.

Q: liquid density dimethyl sulfoxide -1 1.1 g-mL tetrahydrofuran -1 0.89 g mL diethylamine -1 0.71 g-mL…

A:

Q: A student obtains the following data:  a- Mass of evaporating dish…

A: Mass of evaporating dish = 21.345g Mass of evaporating dish and saturated NaCl solution= 42.817 g…

Q: Horse height is measured in hands, one hand equaling exactly 4 inches. If a horse is 15.5 hands…

A: The unit conversion method can be used here.

Q: hree students (A, B, and C) are asked to determine the volume of a sample of ethanol. Each student…

A: Precision refers to the closeness of the measured value to each other, while accuracy is how close…

Q: (-7,1 × 10° cm) []= ? (-7.1 x 10 ? km

A:

Q: How to properly use significant figures in this case? Ccal = (-ΔHrxn x nLR)/ΔT Ccal = (-55.85…

A:

Q: Express (7.64x10^5) g in SI base units using scientific notation.

A: For the base quantities like temperature, mass, length, time and etc, the international system of…

Q: Convert 1285 cm to m?. a) 1.285 x 10' m? c) 0.1285 m? b) 12.85 m2 d) 1.285 x 10 m?

A: To convert one unit to another unit, write the conversion factor on the right hand side of equal to…

Q: What conversion factors are needed to convert:a. nanometers to meters?b. density given in g/c m 3 to…

A: a. One nanometer is equal to 10-9 meters. So, the conversion factor is 10-9m.

Q: C. The Q4. Which of the following has the same number of significant figures as the number 1.0310?…

A: Significant figures of a number in positional notation are digits in the number that are reliable…

Q: 1. Consider the following sets of replicate measurements: A B 9.50 8.70 0.972 8.50 8.20 0.943 9.10…

A:

Q: Q1. The correct conversion expression between degrees °C to K is? A. T(K)=t(°C) + 273.15 C. T(K)=…

A: Given,  The combination of formula/name is correct for the compound is:

Q: Convert 15.0 km to feet. (1 km=0.621 miles; 1 miles=5280 fe 24.1 feet 4.92 x 104 feet 4.57 x 103…

A: 1 Km = 0.621 miles1 mile = 5280 ftthen 15 km = ___

Q: For the following division problem: (6.626 x 10–30) / (9.63 x 107) = ? What is the answer reported…

A: When we divide  the two same numbers  having  coefficients,  like 10-2/10-4 than here we just…

Q: If I have these values and need to calculate percentage, what are the significant figures I need?…

A:

Q: In the lab, a student determines the density of a metal object by measuring its mass on a balance…

A: Calculate the volume of the object:

Q: 1.10 (a) How many significant figures should be reported for thevolume of the metal bar shown here?…

A: Since 2.5 cm has only two significant numbers, the volume is reported in 2 significant figures.…

Q: How do I solve these step by step

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Two undefined numbers expressed in regular notationare s hown below, along with the number of places…

A: Scientific Notation: In science when the number is too large or too small to perform any…

Q: 14) Oxygen (02) is classified as what type of matter? A) element B) homogeneous mixture C) compound…

A: Thankyou for submitting an excellent question. Since you have asked multiple question, we will solve…

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: Perform the following calculation: (-0.00030-c xem 27.5 °C) + 1.0042 cm3 What is the answer to the…

A:

Q: 1.85 Battery acid has a density of 1.285 g/mL and contains 38.0% sulfuric acid by mass. Describe how…

A: Given data: Density of battery acid = 1.285 g/mL Sulfuric acid in battery acid is 38 % by mass

Q: Measurements: Density of a Sa line Solution Data: Record all data with correct units and significant…

A: The percentage yield of a product in a reaction is the percentage of that product obtained compared…

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

A: Answer 1:

Q: Q2. The density of a metal is 13.6 x 10 Kg/m³. The density of the metal is- A.13.6 B. 1.36 C. 136…

A: Q2. Density of a metal is 13.6 × 104 Kg/m3 .We have to calculate the density of the metal in g/cm3…

Q: 2. Complete the blanks in each row, as in the first: a) Find and underscore the last significant…

A:

Q: A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL. What is the density of the…

A: Given : Mass of object = 10.782 g And volume of object = 13.72 mL

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.