Ask question

Ask question

All categories

2 years ago

13

How much heat is evolved when 22.5 grams of a food sample changes the temperature of 0.42 kg of water by 4.4 degree C. Assume sp

ecific heat to be 4.18 J/g/C

1 answer:

irakobra [83]2 years ago

3 0

The answer is C. Assume specific heat to be 4.18 J/g/C

You might be interested in

I need help with my chemistry but you can only choose one correct answer

azamat

Answer:

Explanation:

photosynthesis

the given chemical reaction is photosynthesis.

During photosynthesis carbon dioxide absorbed by plants reacts with water in presence of sunlight to give glucose and oxygen.

4 0

2 years ago

Read 2 more answers

Convert 3841 cL to L. SHOW WORK PLS

barxatty [35]

Answer:

1 cl = 1 * 10-5 m³

1 L = 1 * 10-3 m³

1 L = 0.001 m³

1 m³ = (1/0.001) L

1 m³ = 1000 L

1 cl = 1 * 10-5 * 1000 L

1 cl = 0.01 L

4 0

2 years ago

It requires 334 kJ of heat to melt 1 kg of ice. The largest known iceberg had a volume of about 3.1 x 1013 m³. How much heat was

umka21 [38]

The amount of heat required to melt the iceberg at 9.58 * 10¹⁸ kJ.

<h3>What is the amount of heat required to melt an iceberg that has a volume of about 3.1 x 1013 m³?</h3>

The heat required to melt a unit mass of ice is known as the latent heat of fusion.

The latent heat of fusion of ice of 1 kg= 334 kJ of heat

Mass of iceberg = 3.1 x 10¹³ m³ * 917 kg = 2.8427 * 10¹⁶ kg

Amount of heat required = 2.8427 * 10¹⁶ * 334 = 9.58 * 10¹⁸ kJ.

Therefore, the amount of heat required to melt the iceberg at 9.58 * 10¹⁸ kJ.

Learn more about latent heat of fusion at: brainly.com/question/87248

#SPJ1

8 0

1 year ago

Find the number of moles of in 571,0 g of tetraphosphorous octoxide.

mars1129 [50]

Answer:

Think sorry if i did it wrong The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g. Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He. 1 g of He = (6.022 X 1023) / 4 atoms of He. 52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He.

For Helium,

Number of atoms=Number of moles ×6.022×1023

No of Moles = 6.022×10

2312.044×10

23 = 2.

Now, atomic mass of He=4

Weight = 2×4 = 8 g

The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g. Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He. 1 g of He = (6.022 X 1023) / 4 atoms of He. 52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He.

As we know, gram atoms = gram mole

here, no of moles = 23/46 =2 so no of gram atoms are 2.

Explanation:

MARK ME AS A BRAINLEIST

AND FOLLOW ME AND THANKS MY ANSWER PLEASE

THANKS

0

0.0

(0 votes)

Still have questions?

FIND MORE ANSWERS

ASK YOUR QUESTION

New questions in Chemistry

write the molecular formula and name given in the picture

In determination of Calcium Gluconate, pH required is

precision is related to the

mai apne poiñts khud le rha hu (≧▽≦)(≧▽≦) kisi ko chahiye kya

check the attached picture identify and write the structures of A, B and C in the following reaction.

-2, विक्षेपण तथा विक्षेण क्षमता का समझाइये। Explain Dispersion and Dispersive power.

which of the following elements does not lose an electron easily? a)Na b)F c)Mg d)Al

WRITE THE MOLECULAR FORMULA ND THE NAME OF:

then oppa for us for me also ur cute my mangodolly oppa mangodolly=(aamras)

write IUPSC name of C2H5 | C2H5 - C - C2H5 | C2H5 check the attached picture

Sex___Girls___Join___Fast_____ hts-rrqq-jtw

c.o.m.e. h.e.r.e. t.o h.a.v.e f.un jta-yhpx-hkp what is a chemical reaction?

Why is 6-decene not possible? What would it be called? Draw it.

If alkaline solution we have chromate ions and in acidic solution we have dichromate ions back explain the reason

What is the meaning of stp

H ey gi rl s co me t o ha ve f un an d s ex.. uvk-yuow-ubr..

यह नोएडा टू है प्रेसिपिटेशन 2 सॉल्यूशन शोल्ड बे

27. Identify the type of each of the following reactions stating reason for your answers : Heat (A) 2FeSO4(s) → Fe2O3(s) + SO2(g) + SO3(9) (B) CuSO4(a…

state modern periodic law. what is long form of periodic table? what are its main features? how is it superior to Mendeleev's table?

सोडियम क्लोराइड फॉर्म बाय

3 0

2 years ago

You drink out of a drinking fountain for a full minute. How many moles of water did you just drink? (You need to know how much w

Mila [183]

First of all water (H2O) is made from 2 atoms of hydrogen and 1 atom of oxygen. A mole of water molecules would be 2 moles of hydrogen atoms plus 1 mole of oxygen atoms. So lets say x = 3m, m=1, and x=3, because 3 x 1 = 3 = x, and r = radius of drinking fountain's water dispense, and AOW = amount of water produced in a minute, and y = (x*(r*(AOW/r))... So Y = a, and a = answer... Meaning your answer is (y = (x*(r*(AOW/r)) )!

5 0

3 years ago