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Bone was dissolved in HCl, giving 53.0 mL of solution that contains calcium chloride, potassium oxalate was added To precipitate the Ca+2 Ions from the resulting solution,. The precipitate of CaC2O4, weighed 1.437 grams determine the molarity of calcium chloride in the solution?
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
The atomic mass of element X is 22.99 amu. A 19.98-g sample of X combines with 16.51 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
Calculate the mass in grams for a sample of Al that absorbs 1.70kJ when the temperature increases from 56 degree Celsius to 177 degree Celsius?
An ice cube of 15.1 grams is placed into 304 grams of H 2 O. compute the change in temperature in the H 2 O upon completing melting of the ice.
Determine the trend in sizes of the ions O 2- ,N 3- , F - and also explain why does the trend exist? Also describe which of the molecules contains polar covalent bonds but is NOT itself a polar molecule?
What is the ground state electron configuration for the boron atom? What term symbols can arise from this electron configuration?
Design a tube and shell heat exchanger for the fluids and duty given for you and complete Project Management tasks
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
When you heat up popcorn, it loses water explosively and it pops. suppose a kernel of corn, weighing 0.125 grams weighs only 0.106 grams after popping.
A gaseous compound is 78.14 percent boron and 21 86 percent hydrogen . At 27 degrees celcius, 74.3 ml of gas exerted a pressure of 1.12 atm.
Determine what mass of sulphuric acid would be needed to mix with 0.75 mol of sodium hydroxide(NaOH)?
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