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How many grams of Ba(OH)2, are needed to prepare 650mL solution to a 0.9M concentration?
Given that the rate constant for the decomposition of X is 1.60 M^-1 min^-1, calculate the concentration of X after 11.0min.
Three gases, hydrogen, argon, and methane are confined in a 8.00 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 5.00 moles of argon, and 2.00 moles of methane. What is the partial pressure of methane?
What is the molar mass of the compound? Express your answer to two significant figures and include the appropriate units
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP conditions (37C, 767 torr, 100% humid) by ingesting one 1.834 gram tablet
What is the atomic weight of Mn if the atomic weights for Ag and Br are 107.868 and 79.904 respectively
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added to 50.0mL of the acetate solution. The Ka for the conjugate weak acid of CH3CHOO- is 1.8 x 10^-5. Calculate the pH for this solution at equilibri..
In an experiment 1.550g of mercury oxide decomposed to give oxygen gas and 1.435g of liquid mercury. What is the empirical formula of mercury oxide
Suppose we have a flask with a movable piston in which pressure is kept constant at 1.00atm. If an 8.00gram sample of solid ammonium nitrate is introduced into the flask what is the volume of the flask in liters at 298K when the ammonium nitrate h..
the addition of bromine to trans-p-anisalacetophenone gives a single diasteromer.a. using curved arrows to symbolize
3 tons of ethanol are accidentally discharged into a lake. By how much is the biological oxygen demand of this water increased? Assume that all ethanol is transformed into CO2 and assume the lake contains 108 liters of water.
Calculate the concentration of the Ca2+ in ppm (or mg/L) using the correct number of significant figures assuming the 1.0 HCl has a density of 1.000 g/mL. Show these calculations clearly in your notebook and on your report form. Recall that calciu..
Explain the bond and angle terms of this structure, not confident about what it is - it looks like a ring structure and I have been unable to find it using familiar web searches.
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