Let X (10.0 +2.45)2 -1.930 3.42 What is the value of x to the correct number...
determine the answer for the equation below with correct number of significant figures: 6.78 x 5.903 x (5.489-5.470) A 10.0 cm^3 volume of alcohol has a mass of 0.00705 kg. what is the density of the acohol in grams per cubic centimeter?
An aqueous solution has [OH-] = 8.5 x 10-8. What is the pH of this solution? Place your answer in the box. Express your answer using only a number or numbers without text. Report your result in decimal notation and to the proper number of significant figures. All numbers are measured
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
U 0.32301 L V.324 5. Express the results of the following equations to the correct number of significant figures (assume all numbers are measurements) : a) 13.42 g - 5.395 g = 8.025 g b) 3.4 g +0.02 g + 1.31 g = 4.73 g c) 0.876 g/(0.1266 cm x 50.0 cm * 1.00 cm) = 0.1383886 g/cm'=_ d) 19.56 mL x 0.096 g/mL = 1.87776 g =
What is the pH of a solution obtained by mixing: 10.0 mL of 2.00 M hydrofluoric acid (HF) solution and 20.0 mL of 1.00 M hydrochloric acid (HCI) solution The Ka of hydrofluoric acid (HF) is 6.6 X 104 Show all of your work, give a final answer with the correct amount of significant figures. Correct answer is (0.176)
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the answer please have the correct number of signifcant figures
What is the orbital period of a satellite placed in an orbit 1.60 x 10 km above Earth's surface? Earth - 6.38 x 106m MEarth - 5.98 x 1024 kg Give your answer in minutes to the correct number of significant figures (3 in this case)
Name: Anilun G.._class: Date: LAB inal 1/2 Measured numbers and significant figures in calculations - Mese were all measured numbers, what would the answers to these equations be with the right number of significant figures? Show the answer before and after adjusting for significant figures. 1) 3.461728 + 14.91 +0.980001 + 5.2631 = 2) 23.1 +4.77 + 125.39 + 3.581 = 3) 22.101 -0.9307 = 4) 0.04216 - 0.0004134 = 6) (3.4617 x 107) - (5.61 x 10) = 7)...
Which of the following statements about the number 1.20 x 10-3 g is correct? Check all that apply. Question 7 options: It has three significant figures. It has two significant figures. It is equivalent to 1.20 micrograms. It is equivalent to 1.20 milligrams. It is equivalent to 1.30 mg.
What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq) solution having a pH of 2.00 with 10.0 mL of an HCl(aq) solution having a pH of 6.00? Numeric Answer: Unanswered • 2 attempts left Submit Calculate the pOH of a 7.0E0 M NACH3CO2 (aq) solution. The Ke of acetic acid is 1.8x10-5. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g....
What is the pH of a solution obtained by mixing: 10.0 mL of 1.00 M sodium fluoride (NaF) solution and 2.5 mL of 2.00 M nitric acid (KNO3) solution The Ka of hydrofluoric acid (HF) is 6.6 X 10-4 Show all of your work, give a final answer with the correct amount of significant figures.