Solve each problem, and express the answer in scientific notation.a. (4 × 1 0 2) × (1 × 1 0 8) c. (6 × 1 0 2) ÷ (2 × 1 0 1)b. (2 × 1 0 -4) × (3 × 1 0 2) d. (8 × 1 0 4) ÷ (4 × 1 0 1)

Q: A metal cylinder weighs 49.999 mg. How many pounds (lb.) does it weigh? Use scientific notation to…

A: Given, Mass of cylinder = 49.999mg

Q: Q7 You have a stock solution that contains 78 mM calcium carbonate. You need to make 98 mL of a…

A: Given that : The concentration of calcium carbonate in stock solution = 78 mM The final volume of…

Q: 0.1% = ? ug/ml? Only include the number and not any units b) What is the concentration of your…

A: In the question it is given that 0.1 % mass by volume so we have to to convert this into  microgram…

Q: Number

A: A) use stoichiometry of the reaction to get mass of methanol.

Q: Wire often sold in pounds spools according to the wire gauge number. That number refers to the…

A: Given : mass of wire = 10 pound And diameter of wire = 0.0808 in => radius of wire X 2 = 0.0808…

Q: Round off to three significant figures and express in scientific notation. 0.003265 m

A: Before doing the significant figure problem we must known the significant figure rule ,  zero can…

Q: Method Mass (g) Veylinder Veylinder (mL) Deylinder (g/mL) % error Digital Calipers Water mm mL…

A:

Q: (8.01-7.50)/3.002

A: On solving this type of questions we use BODMAS rule. B - Bracket O - Of D - Division  M-…

Q: 131. Look up the thickness of a human hair. (a) Convert it to an SI standard unit (if it isn't…

A: As you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Round off or add zeros to calculate answers to give a final answer with three significant figure…

A: The rules for significant figures are: 1)  Zeros between two non-zero digits ARE significant. 2) All…

Q: 6. Convert 6.015km to the following units. Round your answer to 4 sig. a. meters b. miles c.…

A: Given: measurement = 6.015 km a) since 1 km = 1000 m => 6.015 km will be = (1000 m / 1 km) *…

Q: convert using scientific notation, also express your answer in scientific notation. convert…

A: Scientific notation : -  Sometimes we deal with very large or very small numbers. eg. 630000000000…

Q: Pomegranate Juice Orange Juice White Grape Juice copyright 2010 www.aciencebob.com Which Juice is…

A: Since you have posted multiple questions, we are entitled to answer the first only. The pic given…

Q: Chemist

A:

Q: A new temperature scale has been invented called the °GS. If the temperature is -105 °C, calculate…

A: Formula for calculation: C = 3.1/(16.8 - GS) Given that: Temperature in degrees C = -105

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

A:

Q: Write the number (4.8 x10-14 )(2.0 x 109 )  in scientific notation.

A: Write the number - (4.8×10-14) (2.0×109) in scientific notation.

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

A:

Q: Express the number 0.002316 using scientific notation. Digits to the right of the underlined digit…

A: The given number is 0.002316 and we have to write scientific notation of this number.

Q: scientific

A: Two given numbers are- 1 × 1031 × 103 and 2 × 1052 × 105 Simplifying the two numbers, we get 1.03 ×…

Q: Put answers in scientific notation. 1. 1.15x10^4+8.24x10^-4 2. 5.37 x 10^4 + 1.00 x10^8/5.63x10^4…

A: Significant Figures Rules: All Non-zero digits are considered significant. All zeros lying in…

Q: ln[A]t/15.4=−(4.78x10^−4M⋅d−1)(1.1x10^4d) forgot how to solve for [A]t

A:

Q: 10. The color of gold is an extensive property. TRUE b. FALSE c. Cannot be determined d. Not enough…

A: Extensive property : It depends upon amount of matter present. eg mass of substance Intensive…

Q: Length is measured with a metric ruler. Part ofa combined metric and inch ruler is shown In Figure…

A: Hii there, since there are multiple questions posted. We are answering first part of questions . If…

Q: ln[A]t15.4=−(4.78x10^−4M⋅d−1)(1.1x10^4d) I forgot how to solve for [A}t.

A:

Q: A patient needed 575 mL of blood during surgery. Show how to convert this volume into pints of…

A: Pint and milliliter: Pint and milliliter is a unit of volume. The relation between pint and liter is…

Q: Show all  computations  and  express final answer in  sig  fig  and  scientific  notation.  Box  out…

A: Given,9.55 g/mLRequired,                   Conversion of g/mL into centigram/dm3 .

Q: a. Convert 360 s to ms.            e. Convert 2.45 × 1 0 2 ms to s.b. Convert 4800 g to kg.…

A: While converting from one unit to another, a conversion factor is multiplied.

Q: Use calculator to solve the problems. Write your answer in scientific notation with correct number…

A:

Q: A 55.9kg person displaces 67.2l of water when  submerged in water tank. What is the density of the…

A: Given: Mass of person = 55.9 Kg Volume of water displaces = 57.2 L

Q: 0.17 M NaCl Express your answer to two decimal places. pH =

A:

Q: A 2.26 liter glass bottle is full of oil. Assume it contains 2.26 L of oil.  The density of oil is…

A:

Q: The slopes of the lines in graph 1 can be interpreted as a useful quantity around the lab if you…

A:

Q: • 4. 8.59 x10³dm = dam %3D • 5. 7200mA to kA • 6. 7.53x104 um to m

A:

Q: 4. In Figure 4 below, a graph shows the relationship between mass and volume for two substances, A…

A:

Q: f you were offered $1,000,000 to count from 1 to 6 x 1023 at a rate of one number per second?

A: haha ha .... dont put these things here , this portal is to answer the queries of the students.

Q: + e Mn2+ E = +0.32 - - 2e → V E = -0.49 answer should be entered with 3 DIGITS; do not enter units;…

A: In electrochemical cell,  Standard cell potential is given by E°cell = E°c - E°a = -0.49 -(0.32) =…

Q: 7.3211 g Fig 2. Student is taring the vial Mistake: Correct way:

A: Difference of weight should be done on analytical  balance  to know the weight of sample  in the…

Q: A student was performing a density experiment in chemistry lab. He used his 10.0 mL volumetric pipet…

A: To determine average density, we need to determine value of density in each trial which is given by…

Q: 15) S00 miles ta kilameter Imile=L6a34 Km 500Miles I.Ga934Xgou B04.672km 16.)7.90table spoek Itable…

A: 15) Given: Value in miles = 500 miles.

Q: What is the correct representation of 702.0 g in scientific notation?A. 7.02 × 1 0 3 gB. 70.20 × 1 0…

A: Scientific notation is a way of expressing numbers that are too large or too small to be…

Q: 24. What is 0.0032 gallons in ml? 25. If you are going 55 mph, what is your speed in meters per…

A:

Q: Pure silver has a density of 10.5 g/mL. A ring sold as pure silver has a mass of 25.0 g. When the…

A: Density of a substance is defined as mass of the substance present in unit volume.

Q: How do I solve this? I do know that it is linear.

A: Using the given data, graph can be drawn by plotting p H against volume of base and is given below:

Q: 0.1% = ? ug/ml? Only include the number and not any units b) What is the concentration of your…

A: Percentage concentration means the mass of solute present per 100 ml of solution.

Q: Use calculator to solve the problems. Write your answer in the correct scientific notation with the…

A: Multiplication of significant figures :- The answer of multiplication should have same number of…

Q: O Playing a Game-Quizizz CO a…

A: Atomic radius is defined as the distance from the centre of nucleus to the outermost shell.

Q: from 0.8778 g/mL, please calculate the mass (in ug) of 71.38 nL of liquid 1.

A: The mass present per unit volume is defined as density. The density of liquid 1 = 0.8778 g/mL The…

Q: Four students labeled A, B, C and D, each took a 200 mL beaker and put 75 mL of water in the beaker.…

A: Most accurate result is the one whose value is nearly to 75ml. Because accuracy represents  level of…

Q: proposed multiplication or division Is this possible? result 10. g ? yes 5.0 L O no О yes (5.0 m) ·…

A: These are some conversion : 1 m = 100 cm 1 Kg = 1000 g 1 L = 1000 mL In multiplication of same unit…

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.