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Problem- If an 11.00mL sample of unknown concentration of HF is titrated with 24.96mL of 0.1150M NaOH, what is the concentration of HF?
I am not able to get the correct answer please help me
Write a balanced chemical equation depicting the formation of one mole of CaCO3 from its elements in their standard states
A pesticide sprayer got stuck while trying to ford a stream flowing at a rate of 136 L/s. Pesticide leaked into the stream for exactly 1 hour and at a rate that contaminated the stream at a uniform 0.25 ppm of methoxychlor. How much pesticide was ..
The rate of the subsequent reaction is 0.720 M/s. Explain what is the relative rate of change of each species in the reaction
How are moles, masses, and volumes of gases calculated from one another for a gas at STP
find the theoretical percent yield amp percent error of the reaction.zirconium oxalate k2zrc2o43h2c2o4middoth2o was
Calculate the amount of energy released per gram of hydrogen nuclei reacted for the following reaction. The atomic masses are H (with 1 neutron) = 1.00782 amu; H (with 2 neutrons) = 2.01410 amu; an electron = 5.4858 x 10^-4 amu.
the solubility product for a sparingly soluble transition metalsalt m2x equals 3.80e-19. the formation constant for
Describe the procedure you will use to determine those cation/anion pairs that produce precipitates. Make sure you include all equipment and amounts of materials you expect to use
The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 535 mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction. (Vapor pressure of water at 25°C = 0.0313 atm.)
Draw the structure of a DNA nucleotide represented by the abbreviation "C." Do not include formal charges on the phosphate group.
The solubility of calcium chromate is 1.56 * 10^-3 g/100 mL of solution. What is the Ksp for CaCrO4
A sytringe contains 589 mL of CO at 325K and 1.2 atm pressure. A second sytringe contains 473mL of n2 at 298K and 2.6atm. What is the final pressure if the contents of tese two syringes are injected into a 1.00L container at STP
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