How many centimeters are there in 12.3 feet? Use the following conversions: 1 foot = 12...
How many centimeters are there in 12.3 feet?
Use the following conversions:
1 foot = 12 in exactly
1 in = 2.54 cm exactly
Type ONLY THE NUMBER with the correct number of significant figures, either in scientific notation or not. When typing a number in scientific notation, use the following format:
1.26 x 108 should be typed as 1.26E8
1.26 x 10–8 should be typed as 1.26E-8
Homework Answers
Add Answer to:
How many centimeters are there in 12.3 feet?
Use the following conversions:
1 foot = 12...
Please help answer and explain Model 2: Definitions of the inch and the foot 1 inch...
Please help answer and explain
Model 2: Definitions of the inch and the foot 1 inch 2.54 cm (exactly) 23 5 6 7 8 9 10 1 12 13 14 15 10 There are exactly 12 inches in one foot. Critical Thinking Questions: How many centimeters are in one inch? 54m 9. Draw a large X through each incorrect conversion factor below. 1 cm2.54 cm 2.54 in 2.54 in 1 cm 10. Suppose you want to convert a height from...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two decimal places in atomic masses. Only give the numeric value of your answer. Don't include the units. i Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 105) In a 1.018E+2 g sample of iron(111) oxide, how many grams of iron are present? Your answer should have the...
Work out the following problems showing all steps and unit conversions. Express all answers in Standard...
Work out the following problems showing all steps and unit conversions. Express all answers in Standard Scientific Notation, to the appropriate number of Significant Figures. 1) 6.0 ml/sec x 4.0 hrs = ? gal 2) 10 L/hr x 2 days = ? liquid ounces 3) 3.00 cm/day x 5.05 years = ? mi 4) 20. L/sec x 4.0 hr = ?? gal 5) 50. m/sec x 2.00 hr = ?? km 6) 1.5 x 10-5 m/sec x 2.5 x 10-3...
How many hydrogen atoms are there in 0.750 mole of ethane (CyHe) molecules? Place your answer...
How many hydrogen atoms are there in 0.750 mole of ethane (CyHe) molecules? Place your answer in the box using scientific notation and using only a number or numbers to the proper number of significant figures. Use the following format to enter your number in scientific notation: 1.23E4 or 1.23E4 it the exponent is negative.
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the...
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the correct number of significant figures a.212.2+26.77 402.09 6-1 b. 52.331 +26.01-0.998173 ande. (64,04-2.91)/(18.7-17)-11ae5F 24 d. (1.00866 -1.728)/(6.02205 x 10)- -1 195 Xlo e. (6.6262 x 1034, 2.998 x 108)/ (2.54 x 10°)- Lo 1,99745 x 10-25 3. Using dimensional analysis, perform the following conversions and report your results to the correct number of significant figures (centi 102; milli 10: micro 10; nano 10; pico...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 10") How many moles of oxygen atoms are in 5.3E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. .- Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit...
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2...
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2 pts) Convert the following from scientific notation to decimal or vice versa. Use correct sig tigs. a) 3.221 x 10 mm b) 0.000421 ml c) 6.4100 x 10 km d) 66,070 g 5. (2 pts) Mercury in thermometers freeze at -32.5°C. What is the temperature in degrees Fahrenheit? T = 9/5 T +32°F 2.54cm/1") 6. (2pts) Write the equality and conversion factors (ratios for...
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430...
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430 0.0251 3 1.010 x 10 243.0 0.0040 900.0 243 7063.1 2.7000 5.98 x 103 2. Using standard scientific notation express 0.14503 meters in: em with 2 signíficant figures km with 4 significant figures 3. Express the following in scientific notation: 6795 to three significant figures 0.42885 to four significant figures
If a gas occupies 12 L at 3 atm, how many liters will it occupy at...
If a gas occupies 12 L at 3 atm, how many liters will it occupy at 9 atm if the temperature is not changed? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10⁵)
How many moles are there in 4.571E+1 g of chlorine (Cl)? Respond with the correct number...
How many moles are there in 4.571E+1 g of chlorine (Cl)? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10⁵)
Please help answer and explain
Model 2: Definitions of the inch and the foot 1 inch 2.54 cm (exactly) 23 5 6 7 8 9 10 1 12 13 14 15 10 There are exactly 12 inches in one foot. Critical Thinking Questions: How many centimeters are in one inch? 54m 9. Draw a large X through each incorrect conversion factor below. 1 cm2.54 cm 2.54 in 2.54 in 1 cm 10. Suppose you want to convert a height from...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two decimal places in atomic masses. Only give the numeric value of your answer. Don't include the units. i Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 105) In a 1.018E+2 g sample of iron(111) oxide, how many grams of iron are present? Your answer should have the...
How many hydrogen atoms are there in 0.750 mole of ethane (CyHe) molecules? Place your answer in the box using scientific notation and using only a number or numbers to the proper number of significant figures. Use the following format to enter your number in scientific notation: 1.23E4 or 1.23E4 it the exponent is negative.
f. 6.022 X 1023 mol 2. Perform the following calculations and report your results to the correct number of significant figures a.212.2+26.77 402.09 6-1 b. 52.331 +26.01-0.998173 ande. (64,04-2.91)/(18.7-17)-11ae5F 24 d. (1.00866 -1.728)/(6.02205 x 10)- -1 195 Xlo e. (6.6262 x 1034, 2.998 x 108)/ (2.54 x 10°)- Lo 1,99745 x 10-25 3. Using dimensional analysis, perform the following conversions and report your results to the correct number of significant figures (centi 102; milli 10: micro 10; nano 10; pico...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 10") How many moles of oxygen atoms are in 5.3E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. .- Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit...
3. (1 pts) How many significant figures in the following a) 350.0452 b) 0.004500 4. (2 pts) Convert the following from scientific notation to decimal or vice versa. Use correct sig tigs. a) 3.221 x 10 mm b) 0.000421 ml c) 6.4100 x 10 km d) 66,070 g 5. (2 pts) Mercury in thermometers freeze at -32.5°C. What is the temperature in degrees Fahrenheit? T = 9/5 T +32°F 2.54cm/1") 6. (2pts) Write the equality and conversion factors (ratios for...
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430 0.0251 3 1.010 x 10 243.0 0.0040 900.0 243 7063.1 2.7000 5.98 x 103 2. Using standard scientific notation express 0.14503 meters in: em with 2 signíficant figures km with 4 significant figures 3. Express the following in scientific notation: 6795 to three significant figures 0.42885 to four significant figures
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