Conservation+of+Mass+Lab+Worksheet

Part C A solid mixture consists of 32.3 g of KNO3 (potassium nitrate) and 5.7 g of K2SO4 (potassium sulfate). The mixture is added to 130. g of water. If the solution described in the introduction is cooled to 0 °C what mass of K2SO4 will crystallize? Use this solubility curve (Figure 1) to answer the questions. Enter your answer numerically in grams. • View Available Hint(s) Nνα ΑΣφ ? Figure Submit

What is the volume of 1.80 M NaCl solution that can be prepared by the dilution of a 50.0 mL of brine solution containing 32.0 wt% NaCl? (Assume the density of a brine solution is 1.10 g/mL and formula mass of NaCl=58.4 g/mol) a. 6.03 mL b. 167 mL C. 301 mL d. 438 mL

Here is a graph of the molarity of acetonitrile (CH3CN) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. 0.030- 0.025- 0.0215 0.020- y M 0.015. 0.010- 0.005 0 5 10 15 20 25 30 seconds Is CH3CN being created or destroyed by the chemical reaction? If CH3CN is being created or destroyed, what is the rate at which it is being created or destroyed 8 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If CH3CN is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 8 seconds of the reaction? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. X O created O destroyed neither created nor destroyed ☐ ☐ 1 ×10 □·□ olo 0 [

Chemical Reaction Experiments: Coke and Mentos 1. The first bottle has 100 ml of coke and 1 piece of mentos. 2. The second bottle has 100 ml of coke and 3 pieces of mentos. 3. The third bottle has 100 ml of coke and 10 pieces of mentos. Give your observations and why chemical reactions occurred.

A solid mixture consists of 25.5 g of KNO3 (potassium nitrate) and 4.5 g of K₂SO4 (potassium sulfate). The mixture is added to 130. g of water. Use this solubility curve (Figure 1) to answer the questions. Part B If the solution described in the introduction is cooled to 0 °C, what mass of KNO3 should crystallize? Enter your answer numerically in grams. View Available Hint(s) 15| ΑΣΦ ?

2 MOLARITY ONLY

Bottled orange juice drinks have a sucrose concentration of 23.5 g/ 100 ml what mass of sucrose is present in a 750 ml bottle of orange juice  a. 1.76 g B. 3.13 g c. 176 g d. 313 g

(please type answer fast).

Use the solubility graph to answer the following question. If 45 g of potassium nitrate is placed in 100 ml of water at 40 °C, how much salt would have to be added or removed in order to saturate the solution? Solubility Curves Solubility (g/L of solvent) 10 g 158 25 B 30 g 20 g 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 KI -HCI SO₂ NaNO₂ -KNO3 NHẠC KCI -KCIO3 NaCl NH₂ 100 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C)

3. Making a cheese sandwich can be represented by the chemical equation: 2 Bd + Ch → Bd2Ch What does the "2" on the left side of the chemical equation represent? A. 2 pieces of bread stuck together B. 2 separate pieces of bread C. 2 loaves of bread k to add notes nts 12 55%

A pair of students were mixing aqueous chemical solutions in a the Classes of Chemical Reactions lab experiment. They labeled their test tubes A, B and C. Which of the test tubes showed a reaction? A B All three test tubes reacted. Test tube B reacted. Test tube C reacted. Test tubes A and B reacted. Test tube A reacted

I have this assignment for my chemistry class and my teacher is not helping me and my peers out at all. If you can't answer all the questions, I understand. It's just read stressing us all out and I was hoping to get some clarification here.

Answer each question from Question #1 - 10.Show each answer and its work.

Octane burns according to the following equation:2C8H18+25O2→16CO2+18H2OCalculate the grams of CO2CO2 produced when 7.68 g of C8H18 are burned. A. 26.0 B. 21.3 C. 22.5 D. 23.7 E. 24.8

Can you give me the solution for this one please?

A student makes a standard solution of potassium hydroxide by adding 14.555 g to 500.0 mL of water. Answer the following questions, being sure to include units and remember sig figs. Include a picture of your work at the end of this worksheet. What is the concentration of this standard solution? If the student pours out a 15.6 mL sample of this solution, how many moles of potassium hydroxide does the student have in the sample?

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

Given the following reactants, write the possible products and determine if the reaction will occur. Provide an explanation for your answer. Include which products are insoluble and which are soluble. Ca(NO3)2 + NaCl * Student can enter max 3000 characters AGBIU FEQ X5 Q+ F5 F6 Use the paperclip button below to attach files. Search .F7 - F8 + F9 TE F10 ¢ 0 9 28 F11 W F12 Prt Sc

10. Concentrated nitric acid, HNO3(aq), has a concentration of 15.7 M. What volume of concentrated nitric acid miust be diluted to make 275 mL of 0.130 M nitric acid solution? Multiple Choice 0.828 mL 15.7 mL 2.28 mL 8.28 mL 0.228 mL

thank you for your help 5. A sample of hydrogen gas has a volume of 8.56L at a temperature of 0°C and pressure of 1.5 ATM. Calculate the number of mols of hydrogen gas present in this sample. 9. Calculate the molarity of a solution prepared by dissolving 1.56g of gaseous HCl into enough water to make 26.8 ml of solution.