se 3. If you found that you need 0.2943 mols of copper, how many grams of...
Suppose you are hired to haul away the waste left over from a place that develops film. It turns out the "waste" actually contains a lot of silver nitrate! You decide you will treat the waste with copper metal in order to recover the silver and cash in. The relevant equation is: 2 AgNO + Cu Cu(NO), + 2 Ag 169.89 g/mol 63.55 g/mol A stoichiometric calculation you need to work through for this type of scheme involves relat- ing...
How many grams of copper if you a 499.8 mL of a .10 M solution/. (Hint M = mol/L and amu for Cu =63.546 g/mol)
i need help on the second page:
"calculate how many mols of HCL you used based on the volume
and molarity of the HCL"
and
"enthalpy of reaction" parts
Part B Heat of Reaction for HCl(aq) + NaOH (aq) NaCl (aq) + so H20 (1) Volume of 1.0 M HCl (ml) so 100 23.3 Volume of 1.0 M NaOH (ml) Mass of Solution (8) use 1.00 g/ml Ti solution (temp of HCl just before reaction) T solution (highest temp obtained)...
In today's exp today's experiment you determine that you collected 1.33 X 10 mols of oxygen Calculate (show your setup for the conversion!) how many mols of H,O, were in your hydrogen peroxide solution. Note: te: Tou will need a conversion factor from the equation you balanced in question 2. mols of H,O2 Based on your answer above, how many grams of H.O, were in the hydrogen peroxide solution? (HO, has a molecular weight of 34.0 g/mol) grams of H,02...
you need to make 2.00 L of 0.05 M copper (II) nitrate solution. How many grams of copper (II) nitrate will you require?
(a) How many grams of magnesium phosphate, Mg3(PO4)2, would you need if you were required to make 215.0 mL of a magnesium phosphate solution with a concentration of 0.110 mol L-1? (5 marks) Molar masses: Mg3(PO4)2 = 262.9 g mol-1 1 L = 1000 mL g Mg3(PO4)2 and What is the concentration of PO43- ions in the 0.110 mol L-1 solution of magnesium phosphate? (2 marks) mol L-1
QUESTION 5 8 MARKS a) How many grams of BaCl2.2H2O (MW = 244.27 g/mol) you need to prepare 250 mL of 0.15 M chloride ion solution? 2 marks b) It was established that this reagent was contaminated by CaCl2 (MW = 181.82 g). The content of calcium in the solid sample was found to be 4750 ppm (w/w). What was the percentage decrease in the molar Barium ion concentration caused by this contamination? 6 marks hi chemists I recieved this...
Problem #3: How many grams of nonvolatile compound B (molar mass= 97.80 g/mol) would need to be added to 250.0 g of water to produce a solution with a vapor pressure of 23.756 torr? The vapor pressure of water at this temperature is 42.362 torr. nella AC
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2 PO (a) How many moles of P,0, are formed from 3.4 moles of O,? SHOW the math below (b) How many moles of P are needed to react with 30,1 moles of O,? SHOW the math below. 5. Aluminum reacts with copper(ll) chloride to make aluminum chloride and copper (a) Write the balanced equation (b) Given 6 moles of Cuch, how many moles of...