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Stoichiometry limiting reagent: find the reagent in excess. then calculate the mass or volume of the products formed.
1)50.0g each of HCl and Zn.2)35.0g each of sodium metal and water.3)40.0g of sodium bicarbonate and 6.0g of sulfuric acid.4)100.0g of ammoniun chloride and 50.0g of samarium hydroxide[Sm(OH)3.5)75.0g of sodium sulfite and 80.0g of hydrogen bromide.
Calculate the temperature change which will be caused by the following process: 0.640 moles of NH4Cl are dissolved in 1.00 L of water.
How many atoms of carbon are present in 73 g of a compound that is 83.3% carbon, by weight?
What is the boiling point of a solution of 8.69 g of the electrolyte sodium acetate, NaCH3COO, dissolved in 15.00 g of water?
At a certain temperature, the root mean square speed of CH4 molecules is 1610 km/h. what is the root mean square speed of CO2 molecules at the same temperature ?
In which state is the average distance between molecules the greatest?, Explain the difference in densities at the two temps in terms of the kinetic molecular theory.
Describe the preparation of 1L solution of 0.02M Tris buffer, PH 7.8. 3. What volume of glacial acetic acid (d= 1.06g/ml) and what weight of solid potassium acetate are required to prepare 5 liters of 0.2M acetate buffer,PH 5.0?
If a 1.22 g piece of gold is hammered into a sheet whose area is 32.4 ft2, what is the average thickness of the sheet? (The density of gold is 19.32 g cm-3.)
A unknown liquid is insoluble in water and soluble in cyclohexane and alcohol with a boiling point of 110 C What is the substance?
Phosphorus-32 has a half-life of 14.0days . Starting with 4.00 g of 32p , how many grams will remain after 42.0 days?
How many moles of CO(NH2)2 are present in 145 g of water, if the freezing point of the solu- tion is -4.02?C? kf (water) = 1.86 K · kg/mol.
Compute the amount of heat required to boil 92.1 grams of benzene (C6H6), start from a temperature of 42.5 degrees Celsius.
A sample of nitrosyl bromide (NOBr) decomposes according to the equation 2NOBr(g)-->2NO9g) +Br2 An equilibrium mixture in a 5.00- vessel at 100 degrees celsius contains
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