Ask question

Ask question

All categories

3 years ago

13

The molar heat of vaporization of water is 40.7 kJ mol . How much heat must be absorbed to convert 50.0 grams of liquid water at

100oC to steam at 100oC?

1 answer:

podryga [215]3 years ago

8 0

Molar mass of water 18g/mol

Number of mols = 50.0g/18g/mol =2.78 mol

Heat absorbed = 40.7 kj/mol * 2.78 mol = 113.1 kj.

You might be interested in

What is the molarity of a solution in which 0.257 moles of HNO2 is dissolved in 490ml of water?

dimaraw [331]

2.00 = 550xl in cash

3 0

2 years ago

Why do you think we use heat to dissolve sodium tetraborate?

xxTIMURxx [149]

Answer:

Explanation:90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u this is irrelevent but idrc lol

3 0

3 years ago

Which question would most likely be studied by a chemist?

lbvjy [14]

Answer:

fd

Explanation:

fff

3 0

3 years ago

How many grams of glucose are needed to form 150g of ethanol?

Svetradugi [14.3K]

<span>1 mole glucose gives 2 moles of ethanol

moles of glucose in 2.4 kg = 2400 / 180.18 = 13.320 moles

so moles of ethanol produced = 2* 13.32 = 26.64 moles

weight of ethanol 26.64 * 46.07

=1227.30 gm or 1.23 Kg</span>

6 0

3 years ago

If 5.0 liters of carbon dioxide gas are produced by the reaction below at STP, how many liters of oxygen gas were used in the re

svp [43]

At STP

1L O₂ → 2L CO₂
xL O₂ → 5.0L CO₂

x=2.5 L

4 0

3 years ago