9) There are ________ significant figures in the answer to the following computation: (29.2 - 20.0) (1.79 × 105) 1.39
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9) There are ________ significant figures in the answer to the following computation: (29.2 - 20.0)...
Q3. There should be __________ significant figures in the answer to the following computation. (10.07 + 7.395) / 2.5 A. 1 B. 2 C.3 D.4. D.5
Give your answer in scientific notation, rounded to three significant figures. A sinusoidal EM wave has an electric field amplitude Em = 29.2 mV/m. What are the intensity and average energy density?
Express the following sum with the correct number of significant figures: 1.82 m + 143.9 cm + 5.30×105 μm Submit Answer Tries 0/2
Give your answer in scientific notation, rounded to three significant figures. A sinusoidal EM wave has an electric field amplitude Em = 29.2 mV/m. What is the intensity and average energy density? 3.77 × 10 J/m^3 (average energy density- figured this part out, don't know how to do the intensity)
Round each answer to the correct number of significant figures 2370 = 7.3832 = 3.21 9 + 2.8-0.135 + 10.6 = 22.265 = (30 +4.3 11.683 3.21
Calculate the molarity of each solution. 1.- 29.2 g of KCl in 0.895 L of solution Express your answer using three significant figures. 2.- 62.3 g of C2H6O in 3.4 L of solution Express your answer using two significant figures. 3.-35.2 mg of KI in 116 mL of solution Express your answer using three significant figures.
Use the rules for significant figures to find the answer to each of the following. (a) 60.33 ✕ 0.005 = ? (b) 60.33/1.2 = ?
Correct Constants| Periodic Table Significant Figures Feedback: Your answer 1431.8 required for this part. Hz was either rounded differently or used a different number of significant figures than The predominant frequency of a certain fire truck's siren is 1350 Hz when at rest. Part B What frequency do you detect if you move with a speed of 20.0 m/s away from it? Express your answer with the appropriate units. 1243.7 Hz Submit X incorrect; Try Again; 3 attempts remaining Review...
Question 7 Which of the following numbers contains the designated correct number of significant figures? 1.04 2 significant figures 0.00302 2 significant figures 0.04300 5 significant figures 156 000 3 significant figures 3.06504 significant figures Question 9 What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL? 42g 53 g 41.9 g 67.1 g 67 g
Write answer to correct number of
significant figures.
For each of the following sets of pressure/volume data, calculate the new volume of the gas sample after the pressure change is made. Assume that the temperature and the amount of gas remain the same. (a) V 101 mL at 704 mm Hg; V = 4.9 mL at 711 mmHg 217 mL at 1.02 atm; V = 40 (b) V mL at 0.953 atm (c) V 3.23L at 105 kPa; V =...