How many significant figures? How do you count it if it is in equation form like below?   4.300 x 106

Q: How many significant figures are in each of these measurements? 93 g, 420210 kg,

A:

Q: How many grams of nitrogen reacted if 17.5 grams hydrogen also reacted? N2 (g) + 3H2 (g) 2NH3 (g)…

A: Given Mass of hydrogen reacted = 17.5 grams

Q: How do you find Significant Figures?

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

Q: How many significant figures are in each of the following numbers (assume that each number is a…

A: (a) The significant figure for 4.003 is 4 because zeros between two non-zero digits is…

Q: How many significant figures are in this number? 0.70050 g

A: • Significant figures are meaningful digits which are known with certainty.  • There are certain…

Q: Lindsay A major component of gasoline is octane (C,H,). When liquid octane is burned in air it…

A:

Q: How many significant figures are in the number 0.0062500?

A: The meaningful digits which are known with certainty plus one digit which is estimated or uncertain…

Q: How do you determine how many significant figures should be in your answer?

A: Rules for counting significant figures:Count the number of significant figures in the decimal…

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

A:

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

A:

Q: A student adds 3.993 grams of salt to a beaker and then adds an additional 69.220 grams of water to…

A: Percent mass: Percent mass of a compound in a solution is defined as the ratio of the mass of the…

Q: Use exponential notation to express 4.22 mg in grams

A: Conversions: 1 gm = 1000 mg 1mg = 10-3 g.

Q: Balance the following chemical reaction: NH3 + 02 --> N2 + H20 Answers or coefficients are whole…

A: We have to predict the balance chemical reaction.

Q: How you you convert 5 months to seconds?  what would the conversion equation look like for this?

A:

Q: To how many significant figures should each answer be rounded?   equation A: (6.626× 10−34…

A: Equation A: (6.626× 10−34 J⋅s)(2.9979× 108 m/s)/(4.610×10−7 m)=4.308912234273×10−19 J Equation B:…

Q: How many grams F in 650.1 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Here we calculate the molar mass of Br2F6. Then calculate the mass of F.

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: How many mL are in 3.0 tsp? 1tsp=4.93mL. Answer with the appropriate number of significant figures.

A: The volume of 3.0 tsp is calculated as shown below. The volume of 3.0 tsp is 14.79 mL.

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

A: Given : Value in mL = 0.010 mL

Q: Question 5 6 pts When you perform the following operations, how many significant figures should your…

A:

Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

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

A:

Q: Which number does NOT have three significant figures? 0.012 O 37.0 3.70 x 105 0.0307 O 0.0370

A: • Significant figures are meaningful digits which are known with certainty.  •There are certain…

Q: a) For the above calculation, how many significant figures should you report the answer to?  b)…

A: Answer:- this question is answered by using the simple concept of significant figures and the rules…

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: How many significant figures are in the following value? 0.0350 g 4 1

A:

Q: How many significant figures are in number? 30,800

A: In any number,the figures that are known with certainty or precision are known as significant…

Q: Mass (grams) 2 8 9 2 BO 60 Mass versus Volume for Copper 1.50 3.00 6.00 Volume (cubic centimeters)…

A: In the given question a graph is given and we are asked to answer the x-axis , the y-axis and the…

Q: You weigh an object on a balance and read the mass in gramsaccording to the picture. How many…

A: Significant figures are digits that carry meaningful contribution to its measurement.   By looking…

Q: of the following is an exact value? A. 1 peso coin B. 12 cars C. 798

A: An exact number has zero uncertainty in it .It has an infinite number of significant figures.…

Q: How many grams of calcium nitrate contain 4.50 g of oxygen? Write your answer on the blank with the…

A: Using molar mass of calcium nitrate and oxygen in calcium nitrate we can solve this problem.

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

A: Step : 1               Find the significant figures.

Q: How many significant figures are in the number 1360?

A: Given number is, 1360

Q: How many significant figures are in the number 8,600,000?

A: Significant figures are meaningful digits which are known with certainty. The number of significant…

Q: Question 4- Calculate the following and express your answer in standard notation with the correct…

A: Scientific notation is a means for the numbers that are too big or too small to be expressed in…

Q: Calculate the mass in grams of 13.0 mol of copper(I) sulfate. Enter your answer in scientific…

A:

Q: convert 275 millimoles into moles(give the answer in the correct number of significant figures)

A: Here we need to convert millimoles into mole.Moles = It is a unit (used in chemistry) for measuring…

Q: How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A:

Q: How many grams are needed to prepare a 5,067 g of CaCl2 of 6 % solution? (Type your answer with the…

A:

Q: A major component of gasoline is octane C8H18 . When liquid octane is burned in air it reacts with…

A: The balanced chemical equation for the combustion of octane is,C8H18(l) + 25/2O2(g) → 8CO2 + 9H2O(g)

Q: How many significant figures are present in the number 10.450?

A: The total number of digits in a number including the last digit whose value is uncertain is known as…

Q: How many significant figures are in the number 0.0032?

A:

Q: How many significant figures are present in(a) 4.01 102(b) 8.256(c) 100

A: Given, (a) 4.01 102(b) 8.256(c) 100

Q: How many significant figures are in the following: c.) 0.00145 d.) 100365 e.) 1.20 x 10² f.)…

A: Significant figures in the given data are determine using following concepts :-  1) All non-zero…

Q: To how many significant figures should each answer be rounded (two equations)?

A: The equations given are,

Q: Balance the following chemical reaction: N2 + H20 --> NH3 + NO Answers or coefficients are whole…

A: In a balanced chemical equation, the number of atoms present on both sides of the equation (…

Q: What is the mass of 3.90 x 1021 formula units of KBr? Answer in standard notation to three…

A: What is the mass of 3.90 x 1021 formula units of KBr?

Q: What do you understand by significant figures?

A: Significant figures refer to the number of digits that has contribution to the value or measurement.…

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.