How many Ne atoms are present in a 2.82 L sample of Ne at STP? (Enter your answer using scientific notation. For scientific notation, 6.02 x 10^{23} is written as 6.02E23.)
How many Ne atoms are present in a 2.82 L sample of Ne at STP? (Enter...
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)
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
How many C atoms are present in the sample of C3H8 with mass 4.41 g? Avogadro’s number is 6.022 × 1023. Answer using scientific notation and to three significant digits.
How many Ne atoms are there in a 40.8 gram sample of Ne ? How many grams of Ba are there in a sample of Ba that contains 8.26×1023atoms? A sample of Hg weighs 31.4 grams. Will a sample of Fe that contains the same number of atoms weigh more or less than 31.4 grams? (more, less): Calculate the mass of a sample of Fe that contains the same number of atoms.
How many carbon atoms are present in 5.000 × 10−4 mol of carbon? Give your answer in scientific notation.
How many moles of KF are present in 25.1 grams of KF? Enter your answer as a number without units. Use the format X*10^Y to enter scientific notation if necessary.
How many grams of carbon atoms are present in a sample of C3H8 if there are 8.70 moles of hydrogen atoms in the sample? Enter your answer with the correct number of sig figs.
How many molecules are present in 1.0 mol of sulfuric acid (H2SO4)? (You may use scientific notation. If your correct answer is e.g. 1189 enter 1.189E+3) molecules the tolerance is +/-2% How many atoms are present in 1.0 mol of sulfuric acid? (You may use scientific notation. If your correct answer is e.g. 1189 enter 1.189E+3) atoms
How many moles of cobalt (Co) atoms are there in 6.00 x 10° 6.00 billion) Co atoms? mol Enter your answer in scientific notation.
How many grams s 4.2x10 atoms of sulftur? Please note that in the drop down menu "part will take the place of atoms, molecules... And also the way you enter in scientific notation in moodle is as follows: (Round any atomic masses to the hundredths Marked out of 1.00 6 02 10 or 6.02 x 10 would be keyed in as 6 02e23 g/mol 42 10s Watch this video if you need help on how to fill in the blanks...