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A gas sample occupies a volume of 18. 86 L when the temperature is 35. 2 oC and the pressure is 735. 5 torr. How many moles of gas are there in the sample?

Axel Richter asked Oct 13, 2024

by Axel Richter

8.3k points

1 answer

4 votes

167k views

What is the molarity of a solution prepared from 29.2 grams of KNO₃ in 425 milliliters of solutions? a. 0.680 M KNO₃ b. 1.47 M KNO₃ c. 0.0687 M KNO₃ d. 0.815 M KNO₃

Petr Gladkikh asked Oct 13, 2024

by Petr Gladkikh

8.2k points

1 answer

1 vote

48.2k views

Sodium moves out of an axon as it is depolarizing. a. True b. False

GauRang Omar asked Oct 13, 2024

by GauRang Omar

7.9k points

1 answer

2 votes

50.4k views

Copper has more than one isotope and the relative atomic mass is an average that takes into account the different masses of those isotopes.

Anycorn asked Oct 13, 2024

by Anycorn

8.0k points

1 answer

2 votes

94.3k views

Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed. 2NaN3(s)⟶2Na(s)+3N2(g). What mass of sodium azide is required to produce 2.6 ft^3 (73.6 L) of nitrogen gas with

Zacran asked Oct 13, 2024

by Zacran

8.3k points

1 answer

1 vote

184k views

explain the change in colour of dichromate ions with change in ph. support your answer with equations.

DubVader asked Oct 13, 2024

by DubVader

8.1k points

1 answer

1 vote

189k views

a flexible vessel contains 37 l of gas where the pressure is 1.0 atm. what will the volume be when the pressure is 0.70 atm, the temperature remaining constant? a. 0.046 l b. 37 l c. 26 l d. 53 l e. 0.

Tanky Woo asked Oct 13, 2024

by Tanky Woo

8.3k points

1 answer

2 votes

221k views

The two possible units of molarity are

Jieun asked Oct 13, 2024

by Jieun

7.6k points

1 answer

0 votes

78.1k views

provide the systematic name for the compound which results when pent-1-yne is treated with sodium in liquid ammonia.

Fxbt asked Oct 13, 2024

by Fxbt

8.4k points

2 answers

3 votes

7.6k views

The formula K=59(F−32)+273.15 converts temperatures from Fahrenheit F to Kelvin K. a. Solve the formula for F. F= ________ b. The freezing point of water is 273.15 Kelvin. What is this temperature in

Adam Ness asked Oct 13, 2024

by Adam Ness

8.4k points

1 answer

4 votes

55.9k views

Rank the viscosity of n-hexane, mineral oil, water and glycerol in order of increasing viscosity. Does the viscosity change with chain length or the make up of the compound? Explain.

Vince M asked Oct 13, 2024

by Vince M

7.8k points

1 answer

0 votes

13.8k views

Given reaction: 2NH3 (g) + 3Cl2 (g) → N2 (g) + 6HCl (g) Determine the quantity in moles of the excess reactant in each of the following cases. Calculate the maximum number of moles of HCl for each case

Mukesh Salaria asked Oct 13, 2024

by Mukesh Salaria

8.6k points

1 answer

0 votes

193k views

How much heat is absorbed when 3.70 mol of A reacts?

Vineet Singla asked Oct 13, 2024

by Vineet Singla

8.2k points

1 answer

2 votes

21.5k views

In IMAC, if you were targeting phosphorylated proteins, what would you attach to resin?

Herobrine asked Oct 13, 2024

by Herobrine

7.6k points

1 answer

5 votes

223k views

What does a large kc indicate about the concentrations of products of a reaction at equilibrium?

Trushar Narodia asked Oct 13, 2024

by Trushar Narodia

8.5k points

1 answer

4 votes

39.6k views

Given the following equation: 2H2O --> 2H2 +O2 What mass of oxygen would form from 5 moles of water? Question 6 options: .078 320 .3125 80

Manube asked Oct 13, 2024

by Manube

7.7k points

1 answer

4 votes

6.0k views

The Coriolis effect greatly affects the paths of air circulation on earth. What causes the coriolis effect?

Nfarrar asked Oct 13, 2024

by Nfarrar

8.8k points

1 answer

4 votes

86.4k views

How many milliliters of each Sodium Chloride 23.4% and sterile water for injection do you need to make 1 liter of 2% saline?

Gopeca asked Oct 13, 2024

by Gopeca

8.1k points

1 answer

1 vote

78.1k views

HOW many moles of Zn will be needed to form 50.0 grams of ZnCl2?

Mike Taylor asked Oct 13, 2024

by Mike Taylor

8.6k points

1 answer

0 votes

148k views

Mechanism for reaction of ethene with H₂SO₄ (stages explained)

Connie King asked Oct 13, 2024

by Connie King

8.7k points

1 answer

0 votes

205k views

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