|| Jiguulallt figures, metric system, facto Use the correct significant figures for these problems. 1) (2...
Correct the number of significant figures in calculations
which are performed incorrectly.
Exercise 2.58: Problems - Significant Figures in Calculations 45.3254 x 89.00205 4034.05 0.00740 x 45.0901 = 0.334 49335 + 9061275.445 x 10-2 0.009010 x 6006.4 54.118 Check all that apply. The first calculation is performed correctly. The second calculation is performed correctly. The third calculation is performed correctly. The fourth calculation is performed correctly. Submit Previous Answers Correct Part B Correct the number of significant figures in calculations...
15. For the following problems, calculate the answer using the correct significant figures rules. a) 0.7856 cm + 0.47 cm = _________ b) 143.266 g – 24.6 g =_______ c) 40.0 mL + 75.3 mL = __________ d) 1.25 X 0.13 = ______ e) 0.0012 / 0.0008 = _____ f) [1.265 + 1.02] X 82 = ______
Hydrolysis Show all your set-ups. significant figures must be correct. 1 a. Write the K. expressions for the hydrolysis and ionization of NaH2XO2 H₂XO2 + H₂O + H₂O + HXO2 b. Given that the Ka of HXO2 is 2.0 x 10-7. Ka2 = 1.6 x 10-8 and Kaz - 1.4 x 10-9 will a 0.100 M solution of NaH2XO2 be acidic or basic? Explain. ANSWER c. Calculate the pH of the solution ANSWER d. Calculate the theoretical % hydrolysis or...
of the following questions m the spaeug piu significant figures are there in ench of the following numbers? (6 pts. e down answer h of the following questions in the spaces providcu rotu pomts Tu b. 1.031 c. 500.00 2 Convert the following numbe rs into scientifie notations. (6 pts) a. 24500 b. 0.1235 C 0.0025 3. Perform the following metric conversions. (12 pts.) a. 225 inch into cm b. 255 mL into liters( 450 kg in tograms
1) Apply the rule for significant figures and solve for problems la through ac a) Compute the value for A A = 0.5 xh( a + b ); a = 2.54 m; h = 5.64 m; b = 3.00 m -0.5.(5.64 ) (2.54 +3:00) = 15.6228 A=15. lem Calculate A = TX; - 3.142 ; r = 5.0 m = 3,142 x (5.0) -78.55 Calculate A=79 V = 0.33x nh(r? + R² + R); T = 3.142; h = 6.3...
For each of the mathematical expressions given: 1. Tell the correct number of significant figures for the answer 2. Evaluate the mathematical expression using correct significant figures in the result. Number of Significant Figures Result 29.3 + (284 x 4.2) 15.467.9.23 0.517 +0.2742 0.0394 x 13 17.1 +0.77 12.62 +1.5 +0.25 The longest river in the world is the Nile River with a length of 4,145 miles. How long is the Nile in cable lengths meters nautical miles Use these...
1. Express the answer to the following problems using the correct number of significant figures a. 1.144 x 10 20.0 b. 4.77 x 101 -9.16 x 10 2. Express the Boltzmann constant (1.38065 x 102" kg m's K') in units of miles' lb yrK 3. Convert 9.997 x 101 g cm* into kg km 4. The Reynolds number is used to deseribe the conditions of particle settling If the Reynolds number is given by the following equation Where v, is...
10. Calculate to the correct number of significant figures 1. 9.00 - 3,000.00 + 3.970 2. 1.54 x 0.03060 x 0.69 3. 27.5 x 1.82 + 100.04 4. (1.10x10%)42.0x10') 11. A flask containing 9.55 mL of a liquid weighs 157.2 g with the liquid in the AA when empty. Calculate the density of the liquid in g/mL to the correct number of picant digits.
Correct II Review Here we learn how to use significant figures when multiplying Compute the following numbers, applying the significant figure rule adopted in this textbook. You may want to review (Pages 23-26) PartB 33.2-25.7 Submit Part C Previous
3. Solve the following math problems and write their answers with the correct number of significant figures. 1.23+45.6 11. 8.3-5 III. 3.4 x 2.32 IV. 78.5+0.0021 +0.0099 v. (2.31 x 10)/ (3.1 x 102) 1.23 x 3.456 VI.