Calculate the number of potassium ions in 2.21 g of potassium nitrate. Enter your answer in scientific notation.
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Calculate the number of potassium ions in 2.21 g of potassium nitrate. Enter your answer in...
Calculate the number of H− ions in 85.3 g of BaH2. Enter your answer in scientific notation Please show work
Be sure to answer all parts. Calculate the number of lithium ions, sulfate ions, S atoms, and O atoms in 10.2 g of lithium sulfate. Enter your answers in scientific notation.
Calculate the number of atoms in 202 μ g of scandium. Enter your answer in scientific notation.
14. Marks: 1 What is the oxidation state of potassium in potassium nitrate? Enter your answer using no spaces with the sign after the number
calculate the number of potassium ions present in a 16.42 g sample of K3P. Question 8 (2 points) Calculate the number of potassium ions present in a 16.42 g sample of K3P. 02.004 x 10e23 potassium ions 2.474 x 10e23 potassium ions 2.9311 x 10e24 potassium ions 1.466 x 10e24 potassium ions
Calculate the number of atoms in 507 μg of scandium. Enter your answer in scientific notation.
Be sure to answer all parts. Potassium is the second most abundant metal in the human body. Calculate the following: (a) The number of atoms in 7.85 moles of potassium. x 10 atoms Enter your answer in scientific notation. (b) The number of moles of potassium that contains 9.07 x 1025 atoms. x 10 mol Enter your answer in scientific notation.
2 attempts left Check my work Be sure to answer all parts. Determine the number of carbon atoms in 1.00 kg of carbon dioxide. X 10 atoms (Enter your answer in scientific notation.) Determine the number of oxygen atoms in 1.00 kg of carbon dioxide. x 10 atoms (Enter your answer in scientific notation.) Calculate the mass of potassium nitrate that contains 1.00 mol of oxygen atou References eBook & Resources Multipart Answer
A B C Be sure to answer all parts. How many moles and numbers of ions of each type are present in the following aqueous solution? Enter your answers for the numbers of ions in scientific notation. 830. mL of a solution containing 2.84 x 1023 formula units of potassium bromide per liter mol potassium x 10 (select) ions potassium mol bromide x 10 (select) ions bromide Be sure to answer all parts. How many moles and numbers of ions...
Enter your answer in the provided box. The concentration of lead ions (Pb2) in a sample of polluted water that also contains nitrate ions (NO3 ) is determined by adding solid sodium sulfate (Na2SO4) to exactly 500 mL of the water. Calculate the molar concentration of Pb2* if 0.00275 g of NazSO4 was needed for the complete precipitation of lead ions as Pbso4 Enter your answer in the provided box. The concentration of lead ions (Pb2) in a sample of...