Chemistry, 13.12.2020 19:20 danyratilladc

1. 2.
3
Questions
In a sample of sulfur weighing 4.07 g, (a) how many moles of
sulfur are present, and (b) what is the total number of sulfur atoms
in the sample?
Potassium-40 is one of the few naturally occurring radioactive
isotopes of elements of low atomic number. Its percent natural
abundance among K isotopes is 0.012%. How many 40K atoms
are present in 225 mL of whole milk containing 1.65 mg K/mL?
An analytical balance can detect a mass of 0.1 mg. What is the
total number of ions present in this minimally detectable quantity
of MgCl2?
The volatile liquid ethyl mercaptan, C2H6S, is one of the most
odoriferous substances known. It is sometimes added to natural
gas to make gas leaks detectable. How many C H S molecules
are contained in a 1.0-PL sample? (d = 0.84 g/mL.)
How many moles of F atoms are in a 75.0-ml sample of
halothane (C2HBrCIF3, d = 1.871 g/mL)? [H = 1, C = 12, F = 19, CI
= 35.5, Br = 80]
4.
5.

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 02:40

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Answers: 1

Answer

Chemistry, 22.06.2019 18:00

How does climate change cause the ocean's thermohaline current to slow down?

Answers: 3

Answer

Chemistry, 22.06.2019 21:30

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride

Answers: 1

Answer

Chemistry, 22.06.2019 22:30

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

Answers: 3

Answer

You know the right answer?

1. 2.
3
Questions
In a sample of sulfur weighing 4.07 g, (a) how many moles of
...

Questions