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For the equation H2 + O2 --> H2O I have 3 moles of H2 and 2 moles of O2. Which is the limiting reaction and why?
Determine the total number of moles of solid sodium hydroxide required to react with 844.00mL of 0.8700M phosphoric acid (H3PO4)
A solution is prepared by mixing 80.0 mL of alcohol with enough water to give 200.0 mL solution. Calculate the % v/v concentration of alcohol in the solution.
When the reddish brown mercury (II) oxide (HgO) is heated, it decomposes to its elements, liquid mercury metal metal and oxygen gas. If 4.29 grams HgO is decomposed to Hg, calculate the mass of the pure Hg metal produced
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent
If a gas occupies 625 mL at 0 Celsius and 760 torr pressure, what will its volume be at 373 degree C and 1520 torr pressure? How would you describe how to separate a mixture of oil, sand, and saltwater.
The repeating galacturonic acid monomers are connected by a-(1->4) bonds. Below draw 4 repeating monomer units making up a pectin molecule
Problem- A method for determining the quantity of dissolved oxygen in nautral water reequires a seris of redox reactions. Balance the following chemical equations in that series under the conditions indicated
What is the percent dissociation of HNO2 when 0.056 g of sodium nitrite is added to 115.0 mL of a 0.057 M HNO2 solution? Ka for HNO2 is 4.0 × 10-4.
Iron crystallizes with Body Centered Cubic (BCC) structure and a lattice parameter is 2.8664 A. What is its the theoretical density
What is the ratio of the rate of effusion of ammonia, NH(3), to that of hydrogen chloride gas
Calculate the volume of 50 wt% NaOH solution needed to be diluted to 1 liter in order to make 1 liter of 0.1 M NaOH. Assume the density of 50 wt% NaOH is 1.5 grams of solution per mL of solution.
Define a flask contains 250ml of a 0.125 solution of Na3PO4. If A sample containing 0.250 moles of Na+ is added to the solution. Presuming no volume change, define what is the new molarity of the new solution
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