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Consider this question: What is the mass of solute in 200.0 L of a 1.556-M solution of KBr?
(a) Outline the steps necessary to answer the question.
(b) Answer the question.
An electron in a hydrogen atom makes a transition from n= 2 to n= 6 which involves a photon of light. Is the photon absorbed or emitted by the hydrogen atom. Explain what is the wavelength of the photon
What is the molarity of an unknown H2C2O4 solution if 10.0 mL of the H2C2O4 solution required 21.3 mL of 0.025 M KMnO4 solution to obtain
Which of the 20 standard amino acids is most abundant in GFP and which of the 20 standard amino acids is least abundant in GFP?
If replacing magnesium with an equal weight of sodium, how would the enthalpy of the reaction changed?
What is this sum called. Explain the physics of this result. Show that the transform of an exponentially decreasing cosine wave is the convolution of a shifted delta function and a Lorentzian, that is, a Lorentzian at the frequency of the cosine w..
Determine the final state and temperature of 100g of water orginally at 25 dgree after 50 kj heat added to it. Ist water, water steam or steam
A sample of propane gas occupies 625cm3 at 20 degrees Celcius and 750 torr. What is the final volume at -80 degrees celcius and 750 torr
A gas occupies 22.4 L at STP and 14.5 L at 100°C and 2.00 atm pressure. How many moles of gas did the system gain or lose?
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate.
Look around your house for products like shampoo, conditioner, supplements, oils, etc. Identify at least five compounds from these products and attempt to write the chemical formula. Be sure to tell us what product you found the compounds in.
calculate the molar concentration of a solution prepared by dissolving 5.4 g of sodium sulfate mw 142 in enough water
Identify the major attractive force between each of the following atoms or molecules: a) He; b) HBr; c) SnH4; d) CH3-CH2-CH2-OH.
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