How many hydrogen atoms are there in 0.750 mole of ethane (CyHe) molecules? Place your answer...
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...
How many hydrogen atoms are in a 20.0000 oz. glass of water? Assume the sample is pure water and neglect the glass. Show work please and proper significant figures and scientific notation.
How many moles of fluorine atoms are there in (3.20x1042) grams of SF4? Give your answer in scientific notation with 3 significant figures. Do not put your answer. Remember, in scientific notation you must include an exponent, even if that exponent is zero. any units in Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer
Be sure to answer all parts. How many SO2 molecules are in 2.07 mol of SO2? How many sulfur atoms and oxygen atoms are there? a) × 10 SO2 molecules Enter your answer in scientific notation. b) × 10 S atoms Enter your answer in scientific notation. c) × 10 O atoms Enter your answer in scientific notation.
How many atoms of copper are present in a 4.8 g sample of copper metal? Express your answer to two significant figures. TIP: To report an answer in scientific notation, enter it using the format "2.3E4", which means "2.3 x 104" (without the quotation marks)
A sample of the male sex hormone testosterone, C19H28O2, contains 3.98×1021 atoms of hydrogen. How many atoms of carbon does it contain? Express your answer in atoms to three significant figures. How many molecules of testosterone does it contain? Express your answer in molecules to three significant figures.
Determine the number of oxygen atoms in 2.54 moles of Al2(SO4)3. Report your answer using three significant figures. When using scientific notation, use the following format: 3.25e19
How many nitrogen atoms are present in a 1.73 g sample of molecular nitrogen? You must report the answer in scientific notation displaying only 3 significant figures Formatting convention that must be used to input a number in written in scientific notation: 1.22 x 104 1.22E2
Complete these statements, supplying the proper quantity Report your answers with 4 significant digits. For numbers in scena natation, use the following notation for 1000, enter 1.000E+3. A mole of O atoms contains The number of significant digits is set to 4, the tolerance is +/-0.1% A mole of O2 molecules contains molecules. The number of significant digits is set to ; the tolerance is +/-0.196 A mole of O molecules contains The number of significant digits is set to...
HQ3.01 Homework - Unanswered How many moles of oxygen atoms are in 9.2E-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 Enotation and only 1 digit before decimale.g.2.585 for 2.5 x 10") Numeric Answer