Chemistry, 03.03.2021 14:00, trinitieu66
1. How many grams are there in 7.5 x 1023 molecules of H2SO4?
2. How many molecules are there in 122 grams of Cu(NO3)2?
3. How many moles in 28 grams of CO2?
4. What is the mass of 3 moles of Fe2O3?
5. How many moles of neon atoms are present in 16.3 L of neon gas at STP?
6. What is the volume 2 mol of chlorine Cl2 gas at STP
7. Find the mass in grams of 2.00 x 1023 molecules of F2.
8. Determine the volume in liters occupied by 14 g of nitrogen N2 gas at STP.
9. What is the relative density ofnitrogen oxide NO2 gas according to air?
10. What is the relative density of oxygen O2 gas according to methane CH4?
Can anyone please explain any of these questions?
Answers: 3
Chemistry, 22.06.2019 11:50, bellojamilet410
What substance has a mass of 9.5g and volume of 2.1cm^3
Answers: 2
Chemistry, 22.06.2019 16:50, TrueKing184
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Chemistry, 22.06.2019 22:00, luciaaviles3
Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.
Answers: 2
1. How many grams are there in 7.5 x 1023 molecules of H2SO4?
2. How many molecules are there in...
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