1. What do you call to the unit amount of a substance used for measuring large quantities of very small entities such as atomd, molecules, or other specified particle like counting molecules of medicine in 0.20g infusion?

A. Mole

B. Molecular Unit

c. Molecules

D. Formula Unit

2. Who was credited for the idea of that the number of molecules in the substance proportional to its physical mass?

A. Amadeo Avogadro

B. Emedeo Avogardo

C. Jean Baptiste Perrin

D. Jean Loschmidt

3. In Hubei China, Ten hospitals were used to do a trial for Remdesivir drugs. Patients age 18 and above was admitted with a laboratory confirmed SARS COV 2 infection. Patients were assigned to intake 0.20 g of Redmesivir on the first day and followed by 0.10 g on the following days. How much molecules of Remdesivir was used on the first day?

A. 1998 x 10¹⁸molecules of C₂₇H₃₅N₆O₈P

B. 1998 x 10¹⁹molecules of C₂₇H₃₅N₆O₈P

C. 1998 x 10²⁰molecules of C₂₇H₃₅N₆O₈P

D. 1998 x 10²¹molecules of C₂₇H₃₅N₆O₈P

4. A mole consists of how many particles?

A. 6.02 x 10²¹ particles

A. 6.02 x 10²² particles

A. 6.02 x 10²³ particles

A. 6.02 x 10²⁴ particles

5. What do you call to the number of nits in one mole of any substance numerically equal to 6.022 X 10²³particles.

A. Avogadro's Number

B. Avogadro's calculation

C. Perrin's Number

D. Loschmidt constant

6. Which of the following best describes why mole is important?

A. In a laboratory, chemists weigh out amounts of subsatances like iron and sulfur to count the equal numbers of atoms on it.

B. Japan pharmaceutical scientists use the unit of mole to count the Favipiravir molecule ina substance.

C. It is used to count Niacinamide molecules in some specific beauty products.

D. All of the above

7. Which of the following units used to express the amount of substances in getting the number of particles?

A. Formula unit

B. Gram

C. Mililiter

D. Mole

8. Carbon disulfide is a liquid that can be used in the production of rayon and cellophane. It is manufactured from methane and elemental sulfur according to the following chemical equation: CH_{4 (g)}+ 4S₂ (l) + 2H₂S (g). How many moles of CS₂can be formed by the complete reaction of 10.6 mole of S?

A. 1.00 mol

B. 10.60 mol

C. 2.65 mol

D. 42.40 mol

9. Nitrous oxide (N₂O), if one of the greenhouse gases, always use to add power to some cars but in reality it makes our ozone layer to deplete. If 200g of nitrous oxide was used, how many molecules of nitrous oxide (molar mass = 44.013 g/mol) will be added in the atmosphere?

A. 2.74 x 10²⁰particles of N₂O

B. 2.74 x 10²¹particles of N₂O

C. 2.74 x 10²³particles of N₂O

D. 2.74 x 10²⁴particles of N₂O

10. Using a periodic table, what is the mass of Oxygen?

A. 113

B. 14

C. 16

D. 17

11. Concentrated ammonia gas can kill us due to their chemical properties; specifically it targets our lungs. How many molar mass does ammonia (NH₃) have?

A. 17. 01 g/mol

B. 18. 01 g/mol

C. 19. 01 g/mol

D. 20. 01 g/mol

12. A cup contains 20g water. How many moles does the water have?

A. 0.76 mol

B. 0.81 mol

C. 0.93 mol

D. 1.11 mol

13. CO₂ is one fo the greenhouse gases. If 60g of CO₂ released, how many molecules will be added?

A. 7.20 x 10²³particles CO₂

B. 8.20 x 10²³particles CO₂

C. 9.20 x 10²³particles CO2

D. 10.20 x 10²³particles CO2

14. Romeo preserves a dozen of milkfish for his birthday celebration. He used 200g of NaCl to fully preserve it in just 3 days. How many moles of NaCl do the 200g have?

A. 1. 42 mole NaCl

B. 2. 42 mole NaCl

C. 3. 42 mole NaCl

D. 4. 42 mole NaCl

15. Which of the following can be used mole as a unit to count paticles/atoms?

A. Pharmaceutical scientists count C₂₇H₃₅N₆O₈P particles in a Remdesivir drug to treat the severity of the CoVid 19 patients.

B. Farmers weigh 500 grams of rice to count how many rice are present.

C. A buyer counts the oranges inside of a 500 g box.

D. Count of Face masks given in 2 barangays.

Question

1. What do you call to the unit amount of a substance used for measuring large quantities of very small entities such as atomd, molecules, or other specified particle like counting molecules of medicine in 0.20g infusion?

A. Mole

B. Molecular Unit

c. Molecules

D. Formula Unit

2. Who was credited for the idea of that the number of molecules in the substance proportional to its physical mass?

A. Amadeo Avogadro

B. Emedeo Avogardo

C. Jean Baptiste Perrin

D. Jean Loschmidt

3. In Hubei China, Ten hospitals were used to do a trial for Remdesivir drugs. Patients age 18 and above was admitted with a laboratory confirmed SARS COV 2 infection. Patients were assigned to intake 0.20 g of Redmesivir on the first day and followed by 0.10 g on the following days. How much molecules of Remdesivir was used on the first day?

A. 1998 x 10¹⁸molecules of C₂₇H₃₅N₆O₈P

B. 1998 x 10¹⁹molecules of C₂₇H₃₅N₆O₈P

C. 1998 x 10²⁰molecules of C₂₇H₃₅N₆O₈P

D. 1998 x 10²¹molecules of C₂₇H₃₅N₆O₈P

4. A mole consists of how many particles?

A. 6.02 x 10²¹ particles

A. 6.02 x 10²² particles

A. 6.02 x 10²³ particles

A. 6.02 x 10²⁴ particles

5. What do you call to the number of nits in one mole of any substance numerically equal to 6.022 X 10²³particles.

A. Avogadro's Number

B. Avogadro's calculation

C. Perrin's Number

D. Loschmidt constant

6. Which of the following best describes why mole is important?

A. In a laboratory, chemists weigh out amounts of subsatances like iron and sulfur to count the equal numbers of atoms on it.

B. Japan pharmaceutical scientists use the unit of mole to count the Favipiravir molecule ina substance.

C. It is used to count Niacinamide molecules in some specific beauty products.

D. All of the above

7. Which of the following units used to express the amount of substances in getting the number of particles?

A. Formula unit

B. Gram

C. Mililiter

D. Mole

8. Carbon disulfide is a liquid that can be used in the production of rayon and cellophane. It is manufactured from methane and elemental sulfur according to the following chemical equation: CH_{4 (g)}+ 4S₂ (l) + 2H₂S (g). How many moles of CS₂can be formed by the complete reaction of 10.6 mole of S?

A. 1.00 mol

B. 10.60 mol

C. 2.65 mol

D. 42.40 mol

9. Nitrous oxide (N₂O), if one of the greenhouse gases, always use to add power to some cars but in reality it makes our ozone layer to deplete. If 200g of nitrous oxide was used, how many molecules of nitrous oxide (molar mass = 44.013 g/mol) will be added in the atmosphere?

A. 2.74 x 10²⁰particles of N₂O

B. 2.74 x 10²¹particles of N₂O

C. 2.74 x 10²³particles of N₂O

D. 2.74 x 10²⁴particles of N₂O

10. Using a periodic table, what is the mass of Oxygen?

A. 113

B. 14

C. 16

D. 17

11. Concentrated ammonia gas can kill us due to their chemical properties; specifically it targets our lungs. How many molar mass does ammonia (NH₃) have?

A. 17. 01 g/mol

B. 18. 01 g/mol

C. 19. 01 g/mol

D. 20. 01 g/mol

12. A cup contains 20g water. How many moles does the water have?

A. 0.76 mol

B. 0.81 mol

C. 0.93 mol

D. 1.11 mol

13. CO₂ is one fo the greenhouse gases. If 60g of CO₂ released, how many molecules will be added?

A. 7.20 x 10²³particles CO₂

B. 8.20 x 10²³particles CO₂

C. 9.20 x 10²³particles CO2

D. 10.20 x 10²³particles CO2

14. Romeo preserves a dozen of milkfish for his birthday celebration. He used 200g of NaCl to fully preserve it in just 3 days. How many moles of NaCl do the 200g have?

A. 1. 42 mole NaCl

B. 2. 42 mole NaCl

C. 3. 42 mole NaCl

D. 4. 42 mole NaCl

15. Which of the following can be used mole as a unit to count paticles/atoms?

A. Pharmaceutical scientists count C₂₇H₃₅N₆O₈P particles in a Remdesivir drug to treat the severity of the CoVid 19 patients.

B. Farmers weigh 500 grams of rice to count how many rice are present.

C. A buyer counts the oranges inside of a 500 g box.

D. Count of Face masks given in 2 barangays.