Chem molarity help pls! 20 points! ( 3 questions )
1. A 25.0 mL sample of concentrated HCl (12.0 M) is diluted to a final volume of 750.0 mL. Calculate the molarity of the final solution.
2. Calculate the volume (mL) of concentrated HNO3 (15.8 M) that should be used to prepare 250.0 mL of a 0.400 M solution.
3. Calculate the volume of water (in mL) that must be added to 150 mL of 0.600 M HCl solution to give a 0.450 M HCl solution.
Answers: 2
Chemistry, 22.06.2019 06:00
When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
Answers: 3
Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1
Answers: 1
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
Chem molarity help pls! 20 points! ( 3 questions )
1. A 25.0 mL sample of concentrated HCl (12...
1. A 25.0 mL sample of concentrated HCl (12...
English, 26.01.2021 21:00
English, 26.01.2021 21:00
Mathematics, 26.01.2021 21:00
Mathematics, 26.01.2021 21:00
Mathematics, 26.01.2021 21:00
English, 26.01.2021 21:00
History, 26.01.2021 21:00
Chemistry, 26.01.2021 21:00
English, 26.01.2021 21:00
History, 26.01.2021 21:00
History, 26.01.2021 21:00
Mathematics, 26.01.2021 21:00