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Potassium-40 has a natural abundance of 0.0118%. Explain how many atoms of potassium-40 are present in a 1.35 g sample of KCl?
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For the molecule allene, H2 C = C = CH2, give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
The mass of a sample of CaCO3 is 751 grams How many total atoms are present in this sample?
Consider the following reaction: CO + H2 CH3OH A reaction mixture in a 5.18 L flask at a certain temperature contains 26.8 g CO and 2.36 g H2 . At equilibrium, the flask contains 8.67 g CH3OH. Calculate the equilibrium c ...
How many moles are in 8.552e+02 Mg (megagrams) of Nickel (III) sulfate? How many molecules are in 5.048e+02 g (grams) of Ammonium Thiosulfate? How many grams do 3.270e+20 molecules of Manganese (IV) phosphate weigh
Calculate the volume in milliliters of a 0.616M barium chlorate solution that contains 475.mmol of barium chlorate (Ba(ClO3)2). Round your answer to 3 significant digits.
Question 1: Bonding Energy i. Draw an energy level diagram for a single Na ion and Cl ion. ii. Explain what is happening to the energy level between these two ions in terms of the Potential Energy. iii. Which process uti ...
Why would the fact that red blood cells are malformed cause a problem with their ability to carry oxygen? How would this affect a person stricken with this disease?
Aqueous potassium phosphate was mixed with aqueous magnesium chloride, and a crystallized magnesium phosphate product was formed. Consider the other product and its phase, and then write the balanced molecular equation f ...
A photon of wavelength 200 nm strikes the surface of a metal causing an electron to be ejected with kinetic energy of 4.3 x 10-19 J. What was the threshold frequency of the metal?
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