significant figures

Q: For a certain chemical reaction, AH" = +9.8 kJ and AS = +30.0 J/K. a) Is the reaction endothermic or…

A: The More the Negative value Of gibbs free energy more spontaneous  will  be reaction.

Q: Calculate the Kc for the following reaction. The equilibrium concentrations were determined at 25C.…

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Q: Methanol is an attractive fuel source in a sustainable, green economy. The chemical energy inherent…

A: Consider the following reaction for the decomposition of methanol: 2CH3OH(l)  →  2CH4(g) + O2(g)…

Q: How do you find Significant Figures?

A: Significant figures: The digits having a meaning in a given number are called as significant…

Q: 1. Which of the following quantities has three significant figures? a) 0.0095 b) 0.4 c) 101 d) 0.10…

A: a) 0.0095  two significant figure b) 0.4  one significant figure c) 101   three significant figure…

Q: How many significant figures are in each of the following measured quantities?

A: All non zero numbers are significant. Zero at starting (left) are not significant. Zeroes in last…

Q: The Kp for Ag,CrO, is 1.2 × 10 1². a) Complete writing the balanced equilibrium equation for the…

A: Ksp is the solubility product of a sparingly soluble salt in an aqueous medium.

Q: The number 1.050 × 109 has how many significant figures?

A:

Q: At what temperature (in °C) would a 0.00550 M solution of glucose in water exhibit an osmotic…

A: By using relation of osmotic pressure, π= cRT where π is osmotic pressure.

Q: Count the significant figures of each quantity 5.60 × 1048 = 243.0 = 0.0000030 = 5   = 9.0000 ×…

A: We have to predict Sig figs in each quantity.

Q: The number 5492.517 rounded to 3 significant figures is?

A: 5490

Q: The value of enthalpy for a chemical reaction, A;H, can be experimentally determined by measuring…

A: The equation for a linear line is y=mx+c where m is the slope and c is the y-intercept. ln Keq and…

Q: How can the number 642,000 g be written to indicate that there are four significant figures

A: Given number is, 642,000 g

Q: How many significant figures are in the number 9.80 x 104?

A: Significant figures: The number that makes it easy to read or write in simple form is called…

Q: A 30.0 mL sample of 0.200 M HNO, solution is titrated with 15.0 mL of a 0.300 M LIOH solution.…

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Q: How many significant figures are in each of the following measured quantities?

A: Given,      36000000 km

Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: Answer the following question: A student wants to make a 1.600 M aqueous solution of barium sulfate,…

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Q: Convert 0.0063 to two significant figures

A: Firstly we will find out no. Of significant figures then we will do round off to the required no. of…

Q: A chemist prepares a solution of mercury(II) iodide (HgI,) by measuring out 0.0056 µmol of…

A:

Q: Use exponential notation to express the number 385500 to three significant figures

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with…

Q: How many significant figures should be in the answer to this problem: 5.01 * 3.493     5     4…

A: To  calculate: Number of significant figures in the result of multiplication: 5.01 x 3.493 It can be…

Q: Do the following calculation. How many significant figures are justified for the answer? = 6.02…

A: When adding different numbers, the answer should have the same number of decimal places as the…

Q: The number 4.0 × 105 has significant figures.

A: Number of significant figure in 4.0 ×105?

Q: 4. How many moles of neon gas are there if 25.0 liters of the gas are at 5.0°C with a pressure of…

A: Answer:- This question is answered by using simple concept of calculation of moles of a gas at the…

Q: An object is determined to have a mass of 0.00180 g . How many significant figures are there in this…

A: Significant figures – calculation rules are as follows,Significant figure is a non-zero number…

Q: could you explain significant figures

A: To ensure precision and accuracy in measurements and get real data, a fixed method to compensate for…

Q: I need this answered with four significant figures

A:

Q: Solve this equation with the appropriate significant figures. 181.34 x 1930.4582 =

A: The given equation is - - - > 181.34 x 1930.4582 = 350069.289988 =350070

Q: e pH of

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Q: normal boiling poim

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Q: Complete the following metric conversions using the correct number of significant figures: 164mg to…

A: 164mg = 164 * 10-3g , Using relation berween milligram and gram we can solve this problem.

Q: A chemist prepares a solution of calcium sulfate (Caso,) by measuring out 0.14 µmol of calcium…

A: A micromole = 10-3 mmole

Q: Answering to the correct number of significant figures, what is 5.80 x 120? A) 696 B) 700 C) 7.0 x…

A: The given equation is, 5.80 × 120 = 696

Q: The first step in HNO3 production is the catalyzed oxidation of NH3. Without a catalyst, a different…

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Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 280,(2)+0,(2) 280,(8) Suppose a…

A: As per Le Chatelier's principle if any equilibrium system is disturbed(by changing temperature,…

Q: A 20.0 % by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/mL at 20°C.…

A: Molarity is calculated by using formula : molarity = moles of solute / volume of solution ( L)  So,…

Q: How many significant figures should be reported on a 25 mL buret?

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Q: convert to three significant figures 5.14900*10-3

A: All non zero digits are considered in the significant figures.

Q: How many significant figures are in the number 0.0009781?

A: Step : 1               Find the significant figures.

Q: What was the original pressure

A: Given : initial volume = 5.00 L               Final volume = 12.0 L               Final pressure =…

Q: Suppose 3.5 g of Compound A and 8.5 g of Compound B are consumed in a reaction that produces only…

A: To solve this problem we will use Law of Conservation of mass . According to this law  Mass of…

Q: how Do you do the following operations following the rules of significant figures

A: Significant figures:The following operations are

Q: Significant figures 98/.006

A: We have to predict the number of Sig figs in given calculations.

Q: What is the volume of a gas at 50.0°C and 0.80 atm, if there are 0.75 moles of the gas present?

A: Given, mole of gas , n = 0.75 molTemperature, T = 50.0°C = 50.0+273 k…

Q: 0.000000100092 in scientific notation to two significant figures

A: Significant figures: The digits which are measured in a number including one estimated digit is…

Q: Ammonium perchlorate (NH,Clo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A:

Q: Considering significant figures, 6.333 x 4.9 would equal

A: Rules for significant figure All non zero integer are significant Exact number have unlimited…