Question

Directions: Encircle the letter of the correct answer.
Kent has 21 marbles. If he will give them equally to his 3 cousins,
how many marbles will each one get?
1.
What is asked in the problem?

A. The number of marbles each cousin will get
B. The number of cousins
C. The number of marbles Kent have
2.
What are given facts?
A. 2 marbles and 13 cousins
B. 2 marbles and 3 cousins
C.21 marbles and 3 cousins
3.
What are the word clue?
A. Give equally and each one get
B. Marbles and give them
C. Kent and cousins
4.
What is the operation to be used?
A. Multiplication B. Division
C. Addition
5.
What is the answer?
A.7
B. 8
C.9​

Answer 1

Answer:

Here ΔT

b

=373.16K−373.15K=0.01K, K

b

=0.5K/molkg, mass of water(solvent(W

1

))=100g=0.1kg, Molar mass of glucose(M

2

)=180.16g/mol

ΔT

b

=K

b

W

1

n

glucose

n

glucose

=

0.5K/molkg

0.01K×0.1kg

n

glucose

=2×10

−3

=

6.022×10

23

N

a

N

a

=12.046×10

20