1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ZanzabumX [31]
2 years ago
14

How much energy is needed to turn 23 g of water completely into steam if it starts at a temperature of 8.0oC?

Chemistry
1 answer:
asambeis [7]2 years ago
6 0

Answer:

69% energy

Explanation:

You might be interested in
A jug contains 2L of milk. Calculate the volume of the milk in m3
stepan [7]

Answer: 0.002 m³

Explanation:

We can use our unit conversions to find the volume in m³.

2L*\frac{1m^3}{1000L} =0.002m^3

8 0
3 years ago
Chemistry
Aleks [24]

Answer:

A. High electrical conductivity

Explanation:

solid silver isn't brittle, it has a high melting point, and its not a good insulator.

4 0
2 years ago
What is formed when hydrobromic acid, hbr, and calcium hydroxide, ca(oh)2, are combined?
Lorico [155]

This is an acid – base reaction and this always result a salt and water in a neutralization reaction. <span>

The salt that is formed will be calcium bromide (calcium is located in group 2 so calcium bromide has a formula of CaBr2) 

so essentially we got:

HBr + Ca(OH)2 ------> CaBr2 + H2O </span>

balancing the elements: <span>

<span>2HBr(aq) + Ca(OH)2(aq) --------> CaBr2(aq) + 2H2O(l)</span></span>

6 0
3 years ago
Consider a sample of a hydrocarbon (a compound consisting of only carbon and hydrogen) at 0.959 atm and 298 K. Upon combusting t
Masja [62]

Answer:

Molecular formula of hydrocarbon is: C₂H₆

Explanation:

The combusting of the hydrocarbon:

CxHy + O₂ → CO₂ + H₂O

Using gas law to obtain molar mass of the gas mixture (CO₂ + H₂O):

P/RT = n/V

Where:

P is pressure (1,208 atm)

R is gas constant (0,082 atmL/molK)

T is temperature (375 K)

n/V = 0,0393 mol/L

1,1128 g/L ÷ 0,0393 mol/L = 28,32 g/mol

Thus, average molecular weight is:

28,32 g/mol = 44,01 g/mol X + 18,02 g/mol Y

1 = X + Y

Where X is CO₂ molar percentage and Y is H₂O molar percentage.

Solving:

X = 0,397

Y = 0,603

39,7% H₂O

60,3% CO₂

With this proportion you can obtain ratio CO₂:H₂O thus:

60,3/39,7 = 1,52 So, 2 CO₂: 3H₂O

The moles of the hydrocarbon are:

PV/RT = n

P (0,959 atm)

V ( 1/5 of final volume)

T (298K)

n = 7,85x10⁻³ mol

The moles of CO₂ are:

0,0393 mol × 2 mol CO₂/ 5 mol total =0,01572.

Ratio of CO₂:CxHY =

0,01572 : 7,85x10⁻³ 2 CO₂: 1 CxHY

Doing:

1 CxHy + O₂ → 2 CO₂ + 3 H₂O

By mass balance:

1 C₂H₆ + 7/2 O₂  → 2 CO₂ + 3 H₂O

Thus, molecular formula of hydrocarbon is: <em>C₂H₆ </em>

I hope it helps!

7 0
3 years ago
0 ml of pure water at 282 k is mixed with 50.0 ml of pure water at 343 k. what is the final temperature of the mixture?
Tasya [4]
The answer to this question is E
6 0
3 years ago
Other questions:
  • A) Moles of CO2 required to inflate 160-L front passenger-side air bag at room temperature and pressure
    14·1 answer
  • a habitat must include all of the following except a. food sources. b. favorable conditions for reproduction. c. more than one p
    7·2 answers
  • O que são processos físicos de separação das misturas? Dê 3 exemplos
    8·1 answer
  • 10. Which of state of matter has no definite shape but does have a definite volume?
    6·1 answer
  • Write the conventional, total ionic, and net ionic equations for Mg(s)+H2O(l)
    8·1 answer
  • Sodium chloride reacts with 0.10 moles of aluminum nitrate in water soultion. How many grams of sodium chloride are required?
    6·1 answer
  • Do Plant cells need to carry out Respiration? Explain
    13·1 answer
  • Please help with correct answer for the one marked :)
    6·1 answer
  • Calculate the poh of this solution. round to the nearest hundredth. ph = 1.90 poh =
    10·1 answer
  • According to the chart of specific heats, which material requires the most heat to raise its temperature from 10°C to 30°C?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!