Chemistry Lab Report Y1 - 24-25 PDF

**Year:1st** **Block:Fundmental** **Department: Biochimestry** **Lab Supervisor/Dr sara al hegazi.** **St. Name:noor almesmary** **St. roll number:** **Group:D3** **Date:3/10/2024** **Lab Title: Form solutions** **[Introduction:]Today we did a scientific experimentatation about how solution...

**Year:1st** **Block:Fundmental** **Department: Biochimestry** **Lab Supervisor/Dr sara al hegazi.** **St. Name:noor almesmary** **St. roll number:** **Group:D3** **Date:3/10/2024** **Lab Title: Form solutions** **[Introduction:]Today we did a scientific experimentatation about how solutions can be mixed together** **We learnt how to be very precise while we fill the cylinders water and if there more water than we want ew can use disposable piptte** **Sometimes the** **[Equipments:] Titration Flask/ Measuring Cylinders/Funnels/ Electronic Scale** **Chemicals: chloride sodium NaCl/ water/H2O** **[Task 1: ]** **Prepare 250ml of 0.7M solution of sodium chloride (Na=23, Cl=35.5).** **[Calculation 1: v=250ml NaCl=23+35.5+58.5g M=0.7 M]** **[M=n.mol\\v]** **[250/1000=0.25L]** **[0.7\*0.25=10.2g]** **[Method 1:]** **1- put the chemical (NaCl) over an electronic scalbe it shoud be (10.2g) but if it was more like (10.3g) it is fairly the same** **2-fill the cylinder with 250 ml of water if you accidently fill more you can use pipette** **3-Mix Nacl with water until all the solute is melted in melted in water-** **[Task 2 : Dilution ]** **[Calculation 2 : ]** **What is the concentration of a solution formed by diluting 5.0 mL of a 3.2 M CuO4 solution to 45.0 mL?** **V1=5.0ml M1=3.2 v2 =45.oml** **m1v1=m2v2** **3.2\*5/45=m2\*45/45** **M2=0.35g** **[Aim:] Diluting a...... M, V...... solution to........ M,......V** **[Method 2:]** **1-.......................................................................................................................................** **2-.......................................................................................................................................** **3-\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...** **4-\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...** **5-\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...** **6-\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...** **7-\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...** **[Safety Measures: ]** **[DO NOT touch\\smell\\taste any of chmicals / keep your hands clean]** **[Results:] Insert Photos of:** **[salt of.........]** **[The prepared solution: ]** **[........................]** **[The concentrated Solution (before experiment) ]** **[...]** [ **.............**] **[The Diluting Solution (After experiment) ]** **[...............................]**