chemistry

posted by .

do the arithmetic and give the answer to the correct number of significant figures. (1.5 x 10^-4 x 61.3) + 2.01 =

  • chemistry -

    1.5E-4*61.3 = 0.00920 (which has too many s.f. That rounds to 0.0092 to two s.f.
    2.01
    +0.0092
    ----------
    2.0192
    which rounds to 2.02 since we can't count anything past the 0.01 place.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 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 …
  2. 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?
  3. 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 …
  4. math/chem significant figures

    Which of the answers for the following conversions contains the correct number of significant figures?
  5. Math

    1. Is it more appropriate to use scientific notation for approximates or exact numbers?
  6. Math

    Any help would be appreciated! What is 38.896/5.1 + 509.15 to the correct number of significant figures?
  7. 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 …
  8. 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=massxfree-fall acceleration. 3) Round 3155.24m, …
  9. 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 …
  10. Chemistry - Significant Figures

    Suppose it takes 35 min for 2.4 g of sugar to completely react with another reagent we added to the flask. What would the reaction rate be?

More Similar Questions