
1. You need to prepare a sample containing 0.20 g of Cuso, from a solution that...
PT 0 -005 1. You need to prepare 10.0 mL of diluted Cuso, solutions with the concentrations listed 15 for Trials 1 through 4 in the table below. Before coming to lab, determine what volumes of 0.040 M Cuso, stock solution and H.O need to be mixed together. Fill in the table with the volumes you determined. xod nooogor 0200.0 (o Jon o da olsa wont blude bolo Trial 0.040 MT HOT Diluted Number CuSO, Diw w Olsun (M) Ons...
You need to prepare 10.0 mL of diluted Cuso, solutions with the concentrations listed for Trials 1 through 4 in the table below. Before coming to lab, determine what volumes of 0.040 M CuSO, stock solution and H,O need to be mixed together. Fill in the table with the volumes you determined. Trial Number 0.040 M CuSO4 (ml) H2O (mL) Diluted Concentration (M) 0.0050 0.010 0.020 0.030 0.040 stock solution
PFTV 0.005 1. You need to prepare 10.0 mL of diluted Cuso, solutions with the concentrations listed for Trials 1 through 4 in the table below. Before coming to lab, determine what volumes of 0.040 M Cuso, stock solution and H.O need to be mixed together. Fill in the table with the volumes you determined. xod nog 200.0" ( Jon o t olsa won blu de bord Trial 0.040 M HOT Diluted Number CuSO, Uw sowi luo (M) rozato 0.0050...
1) When CuSO SHO is heated, it decomposes to anhydrous CuSO4 and water. Complete and balance the following reaction, CuSO4+ 5HO 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO. SH:O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4 5H20 are needed to prepare 50,0 mL...
Calculate the pH of a solution containing 0.20 g of NaOH in 2,000. mL of solution.
How would you prepare 425 g of an aqueous solution containing 2.40% by mass of sodium acetate, NaC2H3O2?
How many grams of MgSO4 will you need to prepare a solution containing 5.00 mol of MgSO4?
3. Concentrations in solids and solution. You send a 10-g sample of rice to the lab for the determination of the total arsenic content. The analyst dissolves 1.0 g of the rice in 5.0 mL of concentrated acid and then dilutes the solution to a final volume of 25.0 mL. When analyzed by ICP-MS, the solution concentration is found to be 35 µg L-1. What is the concentration of arsenic in the rice (in µg kg-1)? ___________ ppb Hint: Follow...
CHM 010 On-Line Lab, Formula of a Hydrate PURPOSE: To determine the formula of Cuso..x H20. In other words, to determine the value of "X". PROCEDURE: When copper(II) sulfate x hydrate, a blue crystalline solid containing embedded water molecules (called a hydrate), is heated in air, it loses the water molecules and the blue solid is transformed to a white anhydrous (no water) crystal known as anhydrous copper(II) sulfate. The "x" represents a whole number of water molecules attached to...
Data Table 1. CuSO4 Data Mass of empty cup (grams) Mass of CuSO, hydrate (erams)S Cuso, hydrate after 1st heating (grams) CuSO, hydrate after 2nd heating (grams) Mass of released H20 (grams) Number of moles of released H201 Mass of anhydrous Cuso (grams) Number of moles of anhydrous CuSO 02a mo Questions: A) Calculate the ratio of moles of H2O to moles of anhydrous Cuso4. Note: Report the ratio to the closest whole number. B) Write the empirical formula for...