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1. Calculate the grams of Na2CO3 required to prepare 250.0 mL of 0.375 M Na2CO3 solution.
2. The reaction of sodium carbonate with hydrochloric acid produces carbonic acid and sodium chloride.
If 25.00 mL of O.0980M sodium carbonate is required to completely react with 17.12 mL of hydrochloric acid solution, what is the molarity of the hydrochloric acid solution?
3. A 80.1 mL sample of hydrogen is collected over water at 23°C and 725 torr from the reaction of magnesium and hydrochloric acid. The vapor pressure of water at 23°C is 21.0 torr. How many grams of hydrogen gas were collected?
A student made a bottle of 6 M NaCl solution in the morning and then stored it in the refrigerator. In the afternoon, he took out the bottle and found NaCl crystals at the bottom of the bottle. Can you explain why the crystals formed
4.00g of H2SO4 solution was diluted with H2O and added with excess of cacl2, and The washed and dried precipitate of BaSO4 weighted 4.08g. Calculate percent H2SO4 in the original acid solution.
the enthalpy of formation of ethanol c2h5oh is -277.0 kjmol at 298.15k. calculate the enthalpy of combustion of one
predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
Find out the number of grams of Na2SO4 that can be prepared by the reaction of 7.44g of NaOH with sufficient H2.
A calibrated flask was filled to the 25 mL mark with ethyl alcohol. By weighing the flask before and after adding the ethyl alcohol, it was determined that the flask contained 19.7325 g of alcohol.
Phosphorus-32 decays by beta emission to form sulfur-32. How many half-lives have passed in the reaction shown here
what is ?hdeg of the reaction done experimentally usingfurfuryl alcohol anhydrous carbon tetrachloride andtriphenyl
how many kilocalories are needed to heat the 1700kg of water from 56 degrees fahrenheit to 167 degrees fahrenheit?
Give the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by the element.
The half life of potassium-40 is 1.26X10^9 yrs, if the natural abundance of k-40 is .010% and 3500 disinigrations of k-40 occur every 10 sec in a human body weighing 100kg then what is the concentration of potassium (include all isotopes) in that ..
Problem- Calculate the pH of the cathode compartment for the following reaction given Ecell = 3.01 V when Cr3+= 0.16 M, Al3+= 0.29 M, and Cr2O72- = 0.55 M.
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