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Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
MnSO4 (aq) is converted to MnO2(s) in a basic medium as oxygen gas is converted to hydroxide ion. In this case, is the sulfate ion a spectator ion
Which of the following molecules would be expected to be MOST water soluble?
What is the density of an object with a weight of 32 grams if it has a volume of 4 cubic centimeters
The molar heart of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. Use this accepted value to predict the heat evolved during the neutralization of 655mL of 1.00 M hydrochloric acid by 1.00 M sodium hydroxide
the two rarest non-radioactive elements are ruthenium and rhodium, each with an abundance of 1x10^-4 g/t. What is the total mass of each of these elements in the Earth's crust (1 t = 1000kg)?
Determine the maximum angle with the vertical the ladder can make without falling on the ground.
To find the pKa of X-281, make a 0.089M test solution of X-281. Explain the pH of the solution is determined to be 3.00. Define what is the pKa of X-281
a piston has an external pressure of 10.0 atm. How much work has been done is the cylinder goes from a volume of 0.180 liters to 0.630 liters
If 3.93 g of sodium borohydride contains 2.5 × 10e23 H atoms, how many moles of H are present in 33 cm3 of sodium borohydride (of density 1.074 g/cm3)?
In the year 2007, an estimated amount of 31 billion tons of carbon dioxide was emitted worldwide due to fossil fuel combustion and cement production. Express this mass of carbon dioxide in grams without exponential notation, using an appropriate m..
Calculate the percentage of Cr2O3 in each sample. What are the absolute and relative standard deviations for the average of each determination?
Question- Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules.
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