give the correct number of significant figures and units to the problem below. (3.4 m + 2.78 m)/565 s=
= (3.4 + 2.78)/ 565
= (6.18) / 565
= 10.9*10^-3 m/s
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do comment in case any doubt, will reply for sure.. Goodluck
give the correct number of significant figures and units to the problem below. (3.4 m +...
Record the measurement to the
correct number of significant figures. ( PUT UNITS IN
ANSWER, FOR EXAMPLE - 851 mL)
Graduated cylinder 1 m 35
Calculate with correct number of significant figures: 534.71x321.83x0.0019 7.529x10- Calculate with correct number of significant figures: 685.90 + 152.1 -0.125 I
Answer the following and round to the correct number of significant figures (don't forget units). a) 0.02123 m + 1.12 m + 0.00123 m = b) 2.3 cm - 1.23 cm + 120 cm = c) 25,430 km - 3,500 km + 200 km = d) (1.21 x 105 ) x (2.6 x 103 ) = e) 7.13 mm x 9.1 mm = f) 3.0 cm x 8.222 cm = g) 4.1 g ÷ 0.121 cm = h) 0.413 ÷...
* Expresses the result of the calculation below with the correct number of significant figures: 13.602x1 90 x 3.06 42x14097 *. Acetone boils at 133.0°F. What is this temperature in Kelvin? T(F) - (9/5)T(*C) + 32
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
Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is: Fe20. (s) + 2Al(s) – 2Fe (1) + Al O2 (s) a. How many moles of iron (III) oxide must react in order to produce 3.5 mol of Fe? (1.25pts) b. What mass of iron (III) oxide reacted in order to...
Show your work, include units, and report the correct number of significant figures for all calculations. 1. The molal freezing point depression constant (K) for p-dichlorobenzene is 7.10°C/m and its normal freezing point (f.p.) is 53.10°C. When 0.209 g of an unknown solute is dissolved in 4.00 g of p-dichlorobenzene, the f.p. is lowered to 50.20°C. Refer to the Introduction and Data Sheet to solve the following problems. °C. a) The f.p. depression (AT) is b) Calculate the molality (m)...
what would be the correct number of significant figures for the
equation on the left below.
25024 (6787.3-6782.8) log (532.4) 34.68873 25024 1734.34. = 14.428543 0.256645 1734.34 6787.3-6782.8 = 4.5 (6787.3-6782.8) = 17.533947 0.256645 25024 (6787.3-6782.8) = 31.9624911 1734.34. 0.256645 log(532.4) = 2.726238
What is the pH to the correct number of significant figures for solutions with the following concentrations of H3O+ or OH−? [OH−] = 5.0×10−3 M pH= [H3O+] = 10−8 M pH= [H3O+] = 4.0 M . pH=
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.