We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
The number of significant figures in the number 0.02090 is: 5 none of these 7 4...
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
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
b) None of these correct How many significant figures does 1261.60030 hava b) 8 9 D) 1,100 mm which distance measurement below is the longest? b) 795 um 0.003 km C 45,000 nm a) 84.3 d) Which 5. 3.70 x 10 Which number below does have the same number of significant figures for 0.420007 a) 0.0307 b) 0.0370 3 ) 37.000 d) 370 e
a) A is a quantity with two significant figures. B has 4 significant figures. If C = A + B, D = A*B, and E=B/A What should the number of significant figures of C, D and E be? b) Compare and contrast the following pairs of definitions, one set at a time. For each set of definitions, describe what kind of measurements ( time, positions etc) must you do in order to compute the quantity based on their definitions. Be as...
4. pH Calculations. Show all work and round to the correct number of significant figures. a. What is the pH of a 5 x 10-14 M hydronium ion solution? b. What is the pH of a .26 M hydroxide ion solution?
Determine the answer to the following equation with correct number of significant figures: (4.123x0.12) + 1.2 x 0.55 = none of these 1.16 1.15 1.2 0 1.155
5. Concentration Calculations. Show all work and round to the correct number of significant figures. a. The pH of a solution is 12.76. What is the hydronium ion concentration? c. What is the hydroxide ion concentration?
4. (2 pts) For 1,2-dichlorobenzene, calculate the masses (to 5 significant figures) and relative abundances (to two significant figures) of the molecular ions: M, M+2, and M+4.
proper number of significant figures? 7. reacted with 100.0 mL of 0.333 M HCL The A 1.522 g sample of impure calcium carbonate was reac mpleted required 35.50 ml of 0.300 M NaOH to excess HCL remaining after the reaction was completed regu calcium carbonate? (Molar mass of calcium reach the end point. What is the wt% purity of the calcium carbona carbonate is 100.086 g/mole)
19) How many significant figures are in 1009.630 mL? A) 3 B) 4 C) 5 D) 6 E) 7 F) 8 20) How many different values of my are possible in the 4f sublevel? A) 1 B) 3 C) 5 D) 7 E) 9 F) 11