Perform the following conversion to the correct number of significant figures using the Dimensional Analysis/Unit Conversion Activity form: A blue whale can weight up to 2.8*105 lbs. How many mg is that? (2.2 lbs = 1 kg)
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Perform the following conversion to the correct number of significant figures using the Dimensional Analysis/Unit Conversion...
PROBLEMS Work the following problems systematically by writing the Units Scheme and the Conversion scheme showing that the dimensional analysis confirms that the conversion scheme is set up correctly and then inserting number into the Conversion Scheme Full credit will only be given for showing the steps. Some question requires balancing the equations. A periodic table is given on the last page for calculating molecular and atomic masse. Report e rs, with units, to the correct number of significant figures....
Perform the calculation and record the answer with the correct number of significant figures. (34.123 + 7.10)/(98.7654 – 1.250) = _______
Perform the calculation to the correct number of significant figures. (12.01 x 0.3) + 4.811 Express your answer using the appropriate significant figures. Submit Request Answer < Return to Assignment Provide Feedback
2. Perform the indicated operations to the correct number of significant figures using the figures rules for a. 37.60 x 1.23 b. 6.7/8.9752 c. 3.765+1.2+37.21 To get credit, specify the rule you used to round your results. Three students make measurements (in m) of the length of a rod using a meter stick. Each student's mode calculate the mean L, standard deviation S and uncertainty u of the measurements. 3. are tabulated in the table below. Using your calculator in...
Perform the following indicated operation. report the answer to the correct number of significant figures. 0.00521+0.236
Perform the following exercise, reporting the answers with the correct number of significant figures. A gas occupies 895 mL at 305 K. What will be the temperature in °C of this gas if the volume was decrease to 685 mL? Assume the pressure and n is constant.
Perform the following operations and express your answers using the appropriate number of significant figures. 60.0 kg + 22.1 kg + 0.52 kg 8.75 ms − 750.0 μ s ( 1.50 × 10 4 m/s ) × 120.0 s π ( 0.22 m 2 + 220 cm 2 ) sin 65.0 ∘ × cos 25.05
For each of the following, you’ll need to perform dimensional analyses. Show your work, use significant figures and show all conversion factors you use. You may need to use some of the conversion factors or equations below and you many need to look some up. 1 mole = 6.02x1023 atoms mass of a gold atom = 3.27 x 10-22 g radius of a gold atom = 174 picometers density of gold = 19.3 g/mL volume of a sphere = 4/3πr3...
I just need someone to check my work.. emphasis on checking significant figures and if there is a better conversion method to use and show please. How many centimeters are there in 403.9 inches? Round your answer to the correct number of significant figures. (1 in = 2.54cm) (2.54 cm) * (403.9 in) = 1030 cm Suppose that an artillery piece has a range R=1.302×104 yards. Find its range in miles. Round your answer to the correct number of significant...
Secu PRE-LAB ASSIGNMENT Date Answer all questions using the correct number of significant figures and correct units. Show all work. 1. (a) Write the balanced molecular and ionic equations, indicating the state of each species in each equation, for the reaction between Mg(s) and HCl(aq): MOLECULAR: TOTAL IONIC: NET IONIC: 1. (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas.