Calculate the mass of Ca2+ in CaCO3/Na2CO sample mass of 2.02 grams? (PLEASE HELP)
Calculate the mass of Ca2+ in CaCO3/Na2CO sample mass of 2.02 grams? (PLEASE HELP)
The total hardness a water sample is 200 mg/l as CaCO3. The calcium (Ca2+) concentration is 50 mg/l. Calculate the magnesium (Mg2+) concentration, in mg/l.
please help. 8 Use the information and examples provided in the Exploration to calculate how many moles of CaCh+2H20 are present in 150 g of CaCly 2H20 and then calculate how many moles of pure Cach are present in the 1.50 g of CaCl 2H2O. Record the answers in Data Table 1 Use the information and examples provided in the Exploration (and values input into Data Table 1, in step 8) to determine how many moles of Nazco, are necessary...
please help due tonight 12. What mass of Na2CO, (molar mass = 106.0 g/mol) is required to react completely with 21.6 ml. of 0.120 M HCI? (show all conversions using appropriate factors with units) (6 points) Na.CO3(aq) + 2HCl(aq) + 2NaCl(aq) + H2O(l) + CO(g)
help with parts A-D please Exercise 6.38 Calculate the mass in grams of each elemental sample: Part A 133x1020 uranium atoms IVO AED O ? m = Submit Request Answer Part B 2.60x1022 zinc atoms VO A Om ? Submit Request Answer Part 5.00x1023 lead atoms ΑΣΦ 6 - Ο ΕΞ ? Submit Request Answer Part D 6.53x1024 silicon atoms Η ΑΣΦ 5 ή ? Τη = Submit Request Answer
the reaction is: CaCl2(aq) + Na2CO3(aq) ? CaCO3(s) + 2NaCl(aq) Mass Grams Mass of CaCl Mass of Na2CO Mass of Filter Paper Mass of Product, CaCO3 (Experimental Yield) Experimental Observations 2 gm 2.5 gm 2.3 gm 2.4 gm 1. What is the proper name of CaCO? When is it used in real life? 2. What happened to the excess reactant after the reaction was complete? 3. What was the limiting reagent in your experiment? Show your calculations that prove this....
please help me solve for the blanks A sample of V weighs 31.5 grams. Will a sample of Na that contains the same number of atoms weigh more or less than 31.5 grams? (more, less): Red Calculate the mass of a sample of Na that contains the same number of atoms. grams of Na Submit Answer Retry Entire Group 8 more group attempts remaining
How would I calculate the moles of CO2 gas based on a reaction of Ca2+ and CO3 2-,, producing CaCO3, then adding HCl drops in eachto dissolve said CaCO3, then assuming that the gas would be collected at 23*C and 755mm Hg? 1.00 mL of .100M Ca2+ reacting with 5.00 mL of .10M CO3 2- and 12 drops of HCl to dissolve the CaCO3 produced
EXPERIMENT # 14 Assuming Na2CO, is the limiting reactant, how many grams of NaCl can be produced from the amount of Na2CO, used in this experiment? Show calculations below: 8 Assuming HCI is the limiting reactant, how many gran of NaCl can be produced from the amount of HCI user this experiment? Show calculations below: 8 Which reactant is limiting? Which reactant is excess? 8 Actual yield of NaCl 8 Theoretical yield of NaCl % Percent yield of NaCl Show...
How would I calculate the moles of CO2 gas based on a reaction of Ca2+ and CO3 2-,, producing CaCO3, then adding HCl drops in eachto dissolve said CaCO3, and producing CO2 gas and H2O, then assuming that the CO2 gas would be collected at 23*C and 755mm Hg? INFO NEEDED: 1.00 mL of .100M Ca2+ reacting with 5.00 mL of .10M CO3 2- and 12 drops of HCl to dissolve the CaCO3, producing CO2 gas
Calculate the molar mass of CO32–and of CaCO3. Determine the percent (by mass) of carbonate in CaCO3.