Ask question

Ask question

All categories

2 years ago

8

A piece of sulfur,was put into a tared container on the scale. The sulfur, S weighs 5.35 grams. When you have completed the work

sheet, answer this question from worksheet here to the correct number of significant figures: How many moles of sulfur atoms are in the sample

1 answer:

astraxan [27]2 years ago

7 0

Answer:

19-73 19-73 64-84 70-65-46 71-76-63 76

You might be interested in

1. How many grams of NaCl are required to prepare 3.5 L of 2.50 % (w/v) sodium chloride solution? A. 87.5 g B. 0.71 g C. 12.5 g

barxatty [35]

Answer:

87.5

Explanation:

3.5 L to g would be 3500

3500*2.5%= 87.5 g

8 0

2 years ago

In which phase is the moon when in the position shown in the diagram?

Artist 52 [7]

Theres no diagram with your question but this should help

7 0

3 years ago

A sample of ideal gas is heated in a 2L vessel at a temperature of 320 Kelvin. the pressure in the vessel is 2.5 atm. What is th

Amiraneli [1.4K]

Answer:

Pressure=3.91atm

Explanation:

As given in the question that gas is ideal so

we can use Ideal gas equation

$PV=nRT$

volume of gas is not given directly but volume of container is given and we know gas takes the volume in which they are kept.

therefore mole remains contant

P1=2.5 atm

V1=2L

T1=320K

P1=?

V1=1L

T1=250K

$2.5\times 2V=nR \times 320$ ..............(1)

$P\times V=nR \times 250$ ................(2)

eqn2/eqn1

$\frac{P}{2.5} \times \frac{1}{2} =\frac{250}{320}$

Pressure=3.91atm

7 0

3 years ago

Syrup used for hummingbird feeders is commonly 25% sucrose (C12H22O11) by mass. if you wish to make 1.0 kg of this soltion, what

vlada-n [284]

Answer:

m

Explanation:

7 0

3 years ago

(a) Calculate the total volume (in liters) of air an adult breathes in a day. (b) In a city with heavy traffic, the air contains

Furkat [3]

Answer:

a) V air/day = 8640 L air an adult breaths / day

b) 0.0181 L CO intake a person / day

Explanation:

a) one average person has 12 breaths for min:

P = 12 breath/min

in each breath it take an average of 500 mL on air.

1 breath ≅ 500 mL air

⇒ 12 breath / min * 500mL air / breath = 6000 mL air / min

the average air volume per day of a person is:

⇒ Vair/day = 6000 mL air / min * (60 min / h) * ( 24 h / day ) = 8640000 mLair / day * ( L / 1000 mL)

⇒ V air / day = 8640 L / day

b) 2.1 E-6 L CO / L air * 8640 L air / day = 0.0181 L CO / day

4 0

3 years ago