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What is the density of an object with a weight of 32 grams if it has a volume of 4 cubic centimeters
A mixture contains both potassium phosphate and potassium chloride. What is the percentage of potassium phosphate in this mixture if reaction of 0.401g of this mixture with excess copper (II) chloride yields 0.213g of copper (II) phosphate?
An additional 31.4 g of water was added to the reaction vessel, and a new state of equilibrium was achieved. What are the equilibrium partial pressures of each gas in the mixture
What mass of ammonium chloride should be added to 2.65 of a 0.145 in order to obtain a buffer with a of 9.65
At 27.7mL sample CO2(g) was collected over water at 25.0 degrees celsius and 1.00 atm. What is the pressure in torr due to CO2(g)?
The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K, respectively. How much heat (kJ)
If the gas composition is 65% methane (CH4) by volume and 35% carbon dioxide (CO2) by volume, what mass, in kg, of each compound would be held within the container just at the release pressure
Calculate the molar solubility and the solubility of iron (II) hydroxide in pure water then in 0.125M NaOH(aq).
In order to measure the enthalpy change for this reaction, 1.25 g of NH4NO3 is dissolved in enough water to make 25.0mL of solution. The initial temperature is 25.8 C and the final temperature
a-Calculate [OH-] of a 2.25×10^-1 M aqueous solution of hydroxylamine (HONH2, Kb = 1.1×10^-8).? part b-Calculate the pH of the above solution. pls show the step wise answer since i'm struggling with chem. (the full answer) to get the full rate:)
The flame produced by the burner of gas (propane)grill is a pale blue color when it mixes with propane(C3H8) to burn it completely. For every gram of propane that flows through the burner, what volume of air is needed to burn it completely?
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
If you pipetted 50.00 mL of an unknown brine and titrated it with 37.64 mL of 0.1024 M silver nitrate solution. Calculate the ppm salt (NaCl) in the sample.
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