We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
5. A 2.600 g sample of limestone was dissolved in excess 0.200 M HCl(aą): CaCO(s) 2...
eve space after the valves are open 5.(25pts) The Ca in a sample of limestone weighing 0.182g was precipitated by using oxalate ions C204 to produce Ca C 0.(s) via the reaction Ca* (aq) + C204 (aq) -----> Ca C 0.(s) If the resulting Ca C20.() weighed 0.133 g, what was the % Ca' in the original sample?
A 0.450 g sample of impure CaCO, (s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is CaCO,(s) + 2 HCl(aq) — CaCl, (aq) + H, 0(1) + CO2(g) The excess HCl(aq) is titrated by 4.85 mL of 0.125 M NaOH(aq) Calculate the mass percentage of Caco, (s) in the sample. mass percentage: The zinc content of a 1.03 g ore sample was determined by dissolving the ore in HCl, which reacts with the...
A 0.2150 g sample is dissolved and treated with excess AgNO3. The precipitate is filtered, washed, dried, and weighed. The mass of the product (AgCl) is 0.4587 g. What is the wt% of Cl in the original sample? The molecular weight of AgCl is 143.32 g/mol.
CaCO,(s) + 2 HCl(aq) +CaCl, (aq) + H,0(1) + CO,() How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate is combined with 14.0 g of hydrochloric acid? mass of CaCl,: 21.292 Which reactant is in excess? HCI Caco, How many grams of the excess reactant will remain after the reaction is complete? mass of excess reactant: 21
When acidic precipitation hits limestone the following reaction occurs Caco, (s) + 2 H,09 - Ca* (aq) + Co, (g) + 3 H,0 (liq) If 15.00 mL of Co, were produced at 0.985 atm and 310 K, how many mg of Caco, (MM - 100.09 g/mol) were consumed? Note that there are 1000 mg in a gram. Select one: 0 0.0581 98.2 5.81 x 10 05.81 x 10 58.1 Check
5.(25pts) The Ca? in a sample of limestone weighing 0.142g was precipitated by using oxalate ions C204 to produce Ca C20d() via the reaction Ca' (aq) + C20. (aq) ----> Ca C,04(s). If the resulting Ca C,04() weighed 0.153 g, what was the % Ca' in the original sample? Bonus Problem (+6pts. No partial credit. A 500.0 mg table of an antacid containing Mg(OH)2, Al(OH)3, and a binder was dissolved in 50.0 mL of 0.500 M HCl. The resulting solution...
A 2.31 g sample of a mixture of AgNO3 and NaNO3 is treated with excess Na2S(aq). The precipitate is filtered off, dried and weighed. The dried precipitate weighs 0.47 g. What is the percentage by mass of NaNO3 in the original mixture? Your answer must be accurate to two significant digits. Keep several extra digits in your calculations and round off only at the end. Do not include the percent sign (%) as part of your answer! Molar masses (in...
How do you calculate questions 1 - 8 for the data analysis section? A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
< Question 1 of 3 > A 0.450 g sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is CaCO3(s) + 2 HCl(aq) → CaCl, (aq) + H2O(1) + CO2(g) The excess HCl(aq) is titrated by 8.45 mL of 0.125 M NaOH(aq). Calculate the mass percentage of CaCO,(s) in the sample. mass percentage:
A 0.450 g sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq) . The equation for the reaction is CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+H2O(l)+CO2(g) The excess HCl(aq) is titrated by 9.05 mL of 0.125 M NaOH(aq) . Calculate the mass percentage of CaCO3(s) in the sample.