
chemistry
Suppose you are asked to find the area of a rectangle that is 2.1cm \rm cm wide by 5.6cm \rm cm long. Your calculator answer would be 11.76 cm 2 \rm cm^2 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not
asked by Lindsey on August 29, 2013 
chemistry
Consider a sample of 10.0 g of the gaseous hydrocarbon C2H6 to answer the following question: How many carbon atoms are present in a 10.0 g sample? (The question is asking for the number of carbons in the sample, not the molecule). When answering the
asked by bella on December 27, 2019 
Math
Find the largest angle for which sine and tangent agree to within two significant figures. Express your answer using two significant figures. Answer in radians ?_?
asked by Anya on September 1, 2009 
physics online
Assuming that Albertine's mass is 60.0 , what is , the coefficient of kinetic friction between the chair and the waxed floor? Use = 9.80 for the magnitude of the acceleration due to gravity. Assume that the value of found in Part A has three significant
asked by baby on October 20, 2010 
math
write 480 in a) 1 significant figure b) 2 significant figures c) 3 significant figures d) 4 significant figures
asked by Jack on August 23, 2010 
maths
What is the gradient of a line that has an angle of inclination of 75°? Enter the answer, rounded to 4 significant figures in the box below. the answer should be a number. ???
asked by elizabeth on May 8, 2011 
Chemistry
Please tell me if my answers are right. Suppose that a series of measurements have shown that the mean mass of an object is 122.4g with a standard deviation of 1.3g. How many significant figures are justified in the mean and how would you report the most
asked by Anonymous on September 2, 2013 
physics
The handle of a 27kg lawnmower makes a 36∘ angle with the horizontal. If the coefficient of friction between lawnmower and ground is 0.66, what magnitude of force, applied in the direction of the handle, is required to push the mower at constant
asked by Anonymous on February 16, 2015 
Math
Rounding to significant figures 99.98 to 3 significant figures Can it apply to this number as if I round to 100 this is one significant figure or we keep it as 99.9. Please clarify And same number to 2 sig figure Will it be 100? Or it stays 99 Round to 1
asked by NJay on October 6, 2017 
Chemistry 1
What answer should be reported, with the correct number of significant figures, for the following calculation: (965.43 x 3.91) + 9413.4136 I got 13189 as an answer. Can someone let me know if this is right?
asked by James on September 17, 2011 
physics
Find the direction and magnitude of the following vectors. A⃗ =( 22 m )x^+( 15 m )y^ Express your answer in degrees using three significant figures. θA = Part B Express your answer in meters using two significant figures. A⃗  = m Part C B⃗ =( 2.5
asked by ana22 on February 11, 2017 
Chemistry
The oxidation of iodide ion by arsenic acid, H3AsO4, is described by the balanced equation 3I−(aq)+H3AsO4(aq)+2H+(aq)→ I3−(aq)+H3AsO3(aq)+H2O(l) If −Δ[I−]/Δt = 4.8×10−4M/s , what is the value of Δ[I3−]/Δt during the same time interval?
asked by Joe on October 5, 2014 
chemistry
use exponential notation to express the number 480 in 3 significant figures and 4 significant figures
asked by mathew on September 8, 2010 
Chemistry
Suppose you are asked to find the area of a rectangle that is 2.1cm wide by 5.6cm long. Your calculator answer would be 11.76 cm2. Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
asked by David on September 11, 2019 
chemistry
Calculate the number of Li atoms in 3.0 moles of Li. Express your answer using two significant figures.
asked by rolando on October 18, 2016 
Physics
Problem 21.40 A pair of 10uF capacitors in a highpower laser are charged to 1.7kV. Paige Nieuwenhuis Part A  What charge is stored in each capacitor? Express your answer using two significant figures. Part B  How much energy is stored in each capacitor?
asked by Paige on September 13, 2011 
Significant figures
How would I go and express these numbers with 3 significant figures in normal notation? a)15.08 b)1444 c)83,909 d)0.524 e)0.0254 for d and e aren't they already with 3 significant figures and also in normal notation? for a, b, and c I can't figure out what
asked by ~christina~ on September 2, 2007 
SCIENCE  PLEASE HELP PLESE
1) Round 578.683 m, 47.3333 kg, and 789.5 cm to four significant figures. 2) Find the weight of a 12.25 kg dog. Round your answer to the correct number of significant figures. Use weight=massxfreefall acceleration. 3) Round 3155.24m, 8.777 73 cm, and
asked by Andra on September 28, 2014 
Chemistry
Energy, q, w, Enthalpy, and StoichiometrySource(s): Consider the combustion of liquid methanol, CH3OH (l). CH3OH (l) +3/2O2 (g) = CO2 (g) + 2H2O(l) H = 726.5 kJ Part A: What is the enthalpy change for the reverse reaction? Express your answer using four
asked by Lisa on June 28, 2011 
Math
How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. Thank you!!!
asked by Sally on September 20, 2012 
Physics/Math
A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further
asked by Technoboi11 on March 3, 2007 
***Chemistry!!!!
Carry out the following operations, and express the answer with the appropriate number of significant figures. 1.)[(285.3 multiplied by 105)  (1.500 multiplied by 103)] multiplied by 2.8948 2.) 874 multiplied by [1267  (3.50 multiplied by 128)] *I know
asked by Anonymous on August 11, 2013 
physics
Find its density. Express your answer to two significant figures and include the appropriate units How does this compare with the density of water? Express your answer using two significant figures.
asked by Phil on April 3, 2014 
Chemistry
How does Significant Figures work? If i had a number: 1,007,000 is that with 4 sig figs or 7 sig figs? I checked 5 different resources and gotten conflicting answers. Help! The answer will depend on what's being measured and how it's being measured. If
asked by Summer on September 14, 2006 
Chemistry 1
What answer should be reported, with the correct number of significant figures, for the following calculation: (965.43 x 3.91) + 9413.4136 I got 13189 as an answer. Can someone let me know if this is right?
asked by James on September 17, 2011 
Chemistry
I have a Chemistry question which should be very simple but I do not know what significant figures are. Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following calculation.
asked by Pablo on January 10, 2013 
math
significant numbers 2.8723 * 1.6 = 4.59568. Is it 4.6 because it is the smallest number you are multiplying it by in the sum? e.g. 2.8723 has 5 signifigant figures but 1.6 has 2 so the answer has no more than 2.Smallest number of significant figures. With
asked by jo on November 11, 2009 
PHYSICS
PLEASE HELP WITH PART E AND F THANKS!! Find the direction and magnitude of the following vectors. A⃗ =( 22 m )x^+( 15 m )y^ Express your answer in degrees using three significant figures. θA = THE ANSWER IS34 Part B Express your answer in meters using
asked by sintia on February 13, 2017 
physics
Suppose you are asked to find the area of a rectangle that is 2.1 wide by 5.6 long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
asked by Parish on September 7, 2011 
significant figures chemistry
I'm having trouble understanding significant figures. If a problem is requires two equations to finish, which of the original measurements do I use to figure out the significant figure? For ex. 3.001+4.32= 7.321. Then I use this answer for a different
asked by mae on September 13, 2013 
chemistry
do the arithmetic and give the answer to the correct number of significant figures. (1.5 x 10^4 x 61.3) + 2.01 =
asked by Anonymous on January 23, 2012 
Physics
I have these two equations that I'm supposed to set equal to each other and find the answer for h which is height for this problem. But I don't think I'm solving it correctly. 0  (h/5) = 1.1(v0)  (1/2)(9.8)(1.1)^2 (v0)^2 = 2(9.8)(h/5  h) My final
asked by Kai on July 14, 2011 
Chemistry
The oxidation of iodide ion by arsenic acid, H3AsO4, is described by the balanced equation 3I−(aq)+H3AsO4(aq)+2H+(aq)→ I3−(aq)+H3AsO3(aq)+H2O(l) If −Δ[I−]/Δt = 4.8×10−4M/s , what is the value of Δ[I3−]/Δt during the same time interval?
asked by Joe on October 5, 2014 
physics
A skier of mass m = 55kg glides down a slope at angle theta = 32∘, as shown in the figure below. The snow is so slippery that you can neglect friction. Find the skier's acceleration. Express your answer using two significant figures. Find the force the
asked by Anonymous on February 16, 2015 
scientific notation
Express in scientific notation. Choose the answer with the proper number of significant figures. _____ 0.47 x 1017 0.5 x 1017 5 x 1018
asked by isaac clarke on October 17, 2014 
Science (Chemistry!)
I just do not understand ANYTHING about multiplying/dividing/adding/subtracting significant figures! For example, the problem is: Solve the following to the correct number of significant figures: (5.039)(0.0074) What am I supposed to do? Just multiply the
asked by Hayley on August 31, 2006 
Chemistry
Hi guys! I just learned about significant figures today, and I have a question about them. My teacher gave us a problem where all values have what I think is four significant figures (like 44.56) except the value for temperature (which is 25.5C). Are
asked by Allie on September 9, 2015 
Math
1.2 (1+ 23.0 x 106/°C*50) Could someone solve this problem for me and tell me how did you get the answer? I've tried to solve this problem in so many ways, but can't get the right answer. My multiple choices are A.0.001386 meters, B.0.00180 meters,
asked by Mirayah Robinson on August 19, 2005 
7th Grade Math
In an addition problem the answer should have the same number of significant figures as the measurement with the mot decimal places. True or False? I say True.
asked by kathy on August 21, 2012 
SCIENCE CHECK
Pleas check the following for me... "A drop of oil (vol 0.051cm ) is released on to the surface of a pond where it covesr an area of 40cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule. Calculate the diameter of
asked by Mark on February 6, 2007 
Science
I'm a little confused when it comes to significant figures. Where it doesn't make sense to me is when zeros come before and after a number. For example: My book states that zeros that come before a digit are NEVER significant. Now this makes sense if you
asked by Anonymous on December 9, 2009 
Chemistry
answear in standard exponential form with correct number of significant figures 0.57 cm X 0.86 cm X 17.1 cm= what don't you understand? Please be specific. You may have two significant figures in the answer.
asked by Bryan on January 15, 2007 
physics
Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b
asked by diana on January 29, 2015 
physics
Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b
asked by diana on February 1, 2015 
Analytical Chemistry
A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an
asked by Matt on February 27, 2017 
Physics  bobpursely
State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 3) 0.00000095 Answer : 9? 4) 5.60 Answer : 3 5) 5.743 Answer : 4 6) 0.010 Answer : 4? Physics Help  bobpursley, Sunday, September 11, 2011 at 4:59pm 2, 3, 6 are wrong: Zeroes
asked by Anonymous on September 11, 2011 
Physics Mathematics
do we have to have the same amount of significant numbers in the values we got by convertion? No. Your conversion factors may have some lack of precision. Examples 60sec=1min infinitely precise, a definition. 1.6km= 1mile two sig figures, because the mile
asked by Katrina on September 15, 2006 
chemistry
A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an
asked by Hobson on March 28, 2010 
Math
1. Is it more appropriate to use scientific notation for approximates or exact numbers? why? 2. In one plantation, there are 2700 young trees correct to 2 significant figures. In the other there are 830 full grown trees, correct to 2 significant figures.
asked by Jason on February 21, 2012 
Physics
Problem 22.16 A 7.5 v battery supplies a 3.5 mA current to a circuit for 8.2 Hr . Part A  How much charge has been transferred from the negative to the positive terminal? Express your answer using two significant figures. Part B  How much work has been
asked by Paige on September 25, 2011 
chemistry
Which of the following is NOT true? A. A measurement contains significant figures and units. B. All numbers should be recorded from a digital readout. C. The uncertain digit is estimated between the last two markings. D. If an average of 4 trials is being
asked by jared on May 10, 2007 
Chemistry
Hi I just need help with question (ii) and (iii), i know how to work out (i) A solution is prepared by dissolving 0.2222 (±0.0002) g of KIO3 in 50.00 (±0.05) mL (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of
asked by Jenny on March 26, 2010 
Math
Any help would be appreciated! What is 38.896/5.1 + 509.15 to the correct number of significant figures? 516.78 What is (154+8446.1)/54 to the correct number of significant figures? 159.261 Thanks!
asked by l on September 7, 2012 
Geometery
A water storage tank is shaped like a circular cylinder with half of a sphere at each end. Find the volume of the tank if the cylindrical section is 100 cm long with a 40cm diameter. Use 3.14 for ~~ Be sure to round the final answer to two decimal places.
asked by Hayley R. on March 1, 2007 
Physics
Problem 21.79 The plates of a 3.2nF parallelplate capacitor are each 0.25 m^2 in area. Part A  How far apart are the plates if there's air between them? Express your answer using two significant figures. = Part B  If the plates are separated by a Teflon
asked by Paige on September 11, 2011 
Mathematics in science
Can you check my answers please? 1. A student measures the volume of a liquid and finds it to be 40ML. How many significant figures are in the measurement? 1. 2** 3 4 2.Calculate the area, with the appropriate number of significant figures, of a
asked by Moonlightlee on September 14, 2015 
Math in Science
A student measures the volume of a liquid and finds it to be 40mL. How many significant figures are in the measurement? 1 *** 2 3 4 Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m
asked by Gabby on September 17, 2013 
Physics
Problem 21.79 The plates of a 3.2 nF parallelplate capacitor are each 0.25 m^2 in area. Part A  How far apart are the plates if there's air between them? Express your answer using two significant figures. Part B  If the plates are separated by a Teflon
asked by Paige on September 13, 2011 
Chemistry
The question asks me to find the absolute error using the true value=.1025M, and the mean=.1077 The answer I got was .0052...how would I convert this to 4 significant figures? (since the values have 4 significant figures)
asked by kristine on September 28, 2013 
physics
when i calculate the density from my measurement,mass=154.4, volume=175.00,and got 0.8823 g/cmexp3 as the answer,so do i have to express the answer in scientific notation or round off it? No, you do not need to express the answer in scientific notation
asked by Katrina on September 17, 2006 
Physics
Talking about significant figures, my Physics textbook lists 5 rules for determining significant figures. 1) All nonzero digits are significant. 2) Zeros to the right of nonzero digits in a number containing a decimal point are significant. 4) Zeros to the
asked by Autumn on August 21, 2012 
physics
A model rocket leaves the ground, heading straight up at 45m/s . Part A What's its maximum altitude? Express your answer to two significant figures and include the appropriate units. Part B Find its velocity at 1 s? Express your answer to two significant
asked by Anonymous on January 25, 2015 
Chemistry
Suppose you are asked to find the area of a rectangle that is 2.1 wide by 5.6 long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
asked by Annie on September 27, 2012 
Chemistry
Give the number of significant figures in the measurement (superscript 3 for #1, and superscript 3 for #2) 1)3.85 X 103 2)17.30 cm3 3)0.0037 mm 1. 3 significant figures. 2. 4 s.f. 3. 2 s.f. Here is a good site to review.
asked by Bryan on January 11, 2007 
Science
I have a question about significant figures. In this problem, would I use the 2 as one significant figure and thus round only to one significant figure? or would I just use the diameter as the significant figure indicator? radius= 1.90 cm/ 2 = .950 or 1
asked by Elizabeth on September 14, 2019 
phsics
Assuming that Albertine's mass is 60.0kg , what is μk, the coefficient of kinetic friction between the chair and the waxed floor? Use g = 9.80m/s2 for the magnitude of the acceleration due to gravity. Assume that the value of k found in Part A has three
asked by jame on December 12, 2014 
Astronomy/Conversion
There are 365.25 days in a year, 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. Convert years into seconds. Show your work and keep 5 significant figures. Ok, so finding it is easy (multiply 24, 60, 60 and 365.25) but how does the
asked by Anonymous on January 16, 2013 
astronomy/conversion
There are 365.25 days in a year, 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. Convert years into seconds. Show your work and keep 5 significant figures. Ok, so finding it is easy (multiply 24, 60, 60 and 365.25) but how does the
asked by carl on January 17, 2013 
physics
round of the following digits 3.65*105(upto are place of decimal) 0.882026(upto three significant figures) 311.299(upto four significant figures) 4.783(upto two significant figures)
asked by yashaswi on August 26, 2016 
Chemistry
Hi! I just have a question about significant figures. If an answer I got for the percentage composition of KCN is 60.043% for K and it needed 4 significant figures, would I omit the zero after the decimal and write it as 60.43% or keep it is 60.043%?
asked by Elaine on October 15, 2019 
physics
1. Air flowing through a vent pipe of crosssectional area 21[m^2] is traveling 0.89[ms^1]. What is the flowrate? [18.7 m3s1] Answer with three significant figures (don't forget to round!) or N/A if there is not enough information to answer the question.
asked by Sean on March 22, 2013 
Chemistry
How can calculations affect the accuracy and precision of experimental results? Calculations, such as division and addition, can decrease precision in data by generating more digits that can be significant. Nonzero digits are always significant; however,
asked by Quinn on October 12, 2018 
Chemistry
Are significant figures relevant in temperature? ex: (459 *F  32 *F)(5 *C/ 9 *F) = 272.78 *C So would I leave my answer as 272.78 *C? or 273 *C because of significant figures?
asked by Jack on August 31, 2010 
Chemistry
Are significant figures relevant in temperature? ex: (459 *F  32 *F)(5 *C/ 9 *F) = 272.78 *C So would I leave my answer as 272.78 *C? or 273 *C because of significant figures?
asked by Jack on August 31, 2010 
Physics  Significant figures
State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 3) 0.00000095 Answer : 9? 4) 5.60 Answer : 3 5) 5.743 Answer : 4 6) 0.010 Answer : 4?
asked by Anonymous on September 11, 2011 
Physics Help
State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 3) 0.00000095 Answer : 9? 4) 5.60 Answer : 3 5) 5.743 Answer : 4 6) 0.010 Answer : 4?
asked by Anonymous on September 11, 2011 
chem 211
When 20.0 mL of 0.535 M H2SO4 is added to 20.0 mL of 1.07 M KOH in a coffeecup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the
asked by beti on October 18, 2013 
Chemistry
I still don't understand how to do this problem; grams/molar mass I understand, but I need to see the steps CLEARLY. 43. How many moles are in 25.0 grams of potassium? Show your work and round your answer to the appropriate number of significant figures.
asked by mysterychicken on October 23, 2010 
Physics
Item 4 Two 2.0 masses are 1.0 apart on a frictionless table. Each has 1.0 of charge Part A  What is the magnitude of the electric force on one of the masses? Express your answer using two significant figures. = Part B  What is the initial acceleration of
asked by Paige on August 28, 2011 
physics
Item 4 Two 2.0 masses are 1.0 apart on a frictionless table. Each has 1.0 of charge. Part A  What is the magnitude of the electric force on one of the masses? Express your answer using two significant figures. = Try Again; 3 attempts remaining Part B 
asked by Paige on August 29, 2011 
Science help
A drop of oil volume 0.05cm^3 is released from a medicine dropper on to a calm surface of a pond where it spreads out to cover an area of 40cm^2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule. I see there is an
asked by Lucy on February 7, 2007 
physics
A cart of mass m = 1.10 kg on a track undergoes a collision with another cart. It's velocity before and after the collision, vi and vf is measured and found to be vi = 2.12¡À0.06 m/s and vf = 0.60¡À0.08 m/s. Calculate the following quantities including
asked by Chen on February 19, 2014 
Chem
Another confusing significant digit problem. I added 36.6 and 2.4, and divided the result by 4.803. The book says the answer is 7.91, but I don'[t see how that could be, since the lowest number of significant digits in the problem is two (2.4). I think the
asked by Coralie on February 15, 2009 
Science significant figures
Find the answer with its correct number of significant figures. 4.311 x 0.07 =?
asked by Hejru on July 15, 2018 
chemistry
When 15.5 + 0.125 + 2.55 are added, the answer with the correct number of significant figures is
asked by katie on January 31, 2012 
Chemistry
13.1 + (19.32  8) = ? I know the answer is 24.42 but it says the answer has to be to the correct number of significant figures. so would that make it 24.5 or have I got that wrong
asked by Oscar on March 6, 2011 
Chemistry
13.1 + (19.32  8) = ? I know the answer is 24.42 but it says the answer has to be to the correct number of significant figures. so would that make it 24.5 or have I got that wrong
asked by Oscar on March 6, 2011 
Chemistry
13.1 + (19.32  8) = ? I know the answer is 24.42 but it says the answer has to be to the correct number of significant figures. so would that make it 24.5 or have I got that wrong
asked by Oscar on March 6, 2011 
Physics
6) A school bus moves at 2.2 m/s as it pulls away from the bus stop what is the speed of the bus 20 s later after its speed has increased by 5.225 m/s? 7) The height of a computer screen is 31.25 cm and its width is 47 cm. a) is the area of the screen
asked by anonymous on September 13, 2015 
Chemistry
How you do this? can you do the first one, i'll try the second one if you can explain Perform the following operations and give the answear in standard exponential form with the correct number of significant figures 1) 37.2mL + 18.0mL + 380mL= 2) 0.57cm x
asked by Bryan on January 11, 2007 
math
Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g  25.50 g Calculate the value of the
asked by help? on September 23, 2010 
chem
Compute 4659¯0−214¯00. Round the answer appropriately. Express your answer numerically using the proper number of significant figures.
asked by Cf on September 16, 2013 
Science (Chemistry)
2. Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm^3. Show all calculations leading to an answer. (I think I
asked by Grace on March 9, 2015 
physics
You pick up a 3.2 kg can of paint from the ground and lift it to a height of 1.4 m . Part A How much work do you do on the can of paint? Express your answer to two significant figures and include the appropriate units. Part B You hold the can stationary
asked by ... on October 24, 2016 
physics
express the answer in scientific notation with the correct number of significant figures (8.86+1.0*10^3) / 3.610*10^3 2454.57??? please help
asked by y912f on February 18, 2009 
Physics
when we do convertions, do we have follow the rules for rounding? is it 118.5cm=1.19m, or 118.5cm=1.18m? It depends upon how many significant figures (sf) you are allowed, whether you are doing converSions or calculating some other problem. By definition,
asked by Katrina on September 17, 2006 
Chemistry
please check my answers for the following questions. 1) when a measurement that has six significant digits is divided by a measurement that has three significant digits, how many significant digits should the answer have? ANSWER: 2 2) How many hydrogen
asked by anonymous on July 31, 2007 
Significant Figures
I'm having a hard time with significant figures. Any help would be appreciated. The first one is 0.0000000502. I put that it has three significant figures. Is this correct? The other numbers I haven't a clue about are: 5.52 299,792,458 206,265 I get the
asked by Carl on January 16, 2013 
science
what is the calculation of the ground state energy of the O^7+ hydrogenlike ion. can your answer be in Ve and to an approriate number of significant figures please.
asked by mathew b on April 26, 2009 
chemistry
Volume (mL) of 2.15 M potassium hydroxide that contains 8.09 g of solute WebAssign will check your answer for the correct number of significant figures. mL
asked by john on October 6, 2013