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3 years ago

The molecular mass of the compound is 132 amu What is molecular formula?

1 answer:

3 0

I am assuming that this compound contains carbon, hydrogen and oxygen. The molar mass of carbon, hydrogen and oxygen is 12, 1 and 16 grams/mol. Given these molar mass we now need to know the number of C H and O in the compound. To have 132 the compound must be C6H12O3

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4/5(2x 5)−4=1

uysha [10]

5/8=0.625 4/5=.8

5/8 because 5/8=0.625 and because its 2x you multiply 0.625 by 2=1.25 then you do 1.25+5=6.25 4/5=.8 6.25 times .8=5 5-4=1

X=5/8 or 0.625

5 0

3 years ago

A completely reversible heat pump has a COP of 1.6 and a sink temperature of 300 K. Calculate (a) the temperature of the source

sesenic [268]

Answer:

(A) 800 K (B) 2.4 KW

Explanation:

We have given the COP =1.6

The sink temperature $T_L=300K$

We have to find the source temperature, that is $T_H$

(A) We know that COP of the heat pump is given by $COP=\frac{T_H}{T_H-T_L}$

So $1.6=\frac{T_H}{T_H-300}$

$1.6T_H-480=T_H$

$0.6T_H=480$

$T_H=800K$

(B) We have given the work done =1.5 KW

The rate of heat transfer is given by $Q_H=COP\times W=1.6\times 1.5=2.4KW$

5 0

3 years ago

How many grams are present in a sample of aluminum?

MrMuchimi

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5 0

4 years ago

Which is caused by gravity?

MissTica

Mass wasting I think it's done

5 0

3 years ago

What is the percent composition of the u.s quarter, which has the mass of 5.670g

Vitek1552 [10]

The percent composition of each element can be calculated as follows:
% composition = (mass of element / total mass) * 100

The total mass of the quarter is given to be 5.670 grams
Mass of Cu = 5.198 grams
Mass of Ni = 0.472 grams

Substitute in the above equation to get the mass percentage of each element as follows:
% of Cu = (5.198/5.670) * 100 = 91.675%
% of Ni = (0.472/5.670) * 100 = 8.325%

6 0

3 years ago