find the sum of 10 terms of following series 3,6,9,12,15,18......​

Explanation:

Molarity is a measure of the concentration of a solute in a solution or of any chemical species, in terms of amount of a substance in a given volume. A commonly used unit for molar concentration used in chemistry is mol/L. A solution of concentration 1 mol/L is also denoted as 1 molar (1 M).

Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. For use in broader applications, it is defined as amount of solute per unit volume of solution, or per unit volume available for the species, represented by lowercase c:

c=

V

n

where,

n= no. of moles of solute.

V= volume of solution in litres.

Calculation:

Let the weight required be x g.

Molarity c=0.1 M

Number of moles of KMnO

4

is n=

158.034

x

moles

The volume of solution in litrs is V=

1000

250

=0.25 litres

Molarity of the given solution is given as c=

V

n

c=

0.25

158.034

x

=0.1

⟹x=158.034×0.1×0.25

⟹x=3.95 g

Therefore, weight of KMnO

4

required is 3.95 g.

Answer:

sentences that are correct: (3.) and (5)

Explanation:

1. she are beautiful- correct: she is beautiful

2. i sings melodious songs- correct: i sing melodious songs.

4. komal and Conica is reading the same book.- correct: Komal and Conica are reading the same book.

Answer:

-1/2a^3

Explanation:

hope this helps...

Answer:

ok main kar lungi bs happy

ok kal baat karte hai

love you sweetheart ❤️❤️❤️

gn❣️

Explanation:

Dear Reema

I am doing fine here I hope you are too. Recently a new supermarket opened in our locality and we went there on the day it opened. Oh my God I wish you were here too, it was as big as a shopping mall. There were so many varieties of items that it confused me on what to pick and you know that I am very specific about my choices. You would have loved it. there were even mini games for the first week and whoever won would get a coupon with 50% off on any items that they buy. My dad and I played so many games and we won all of them. My mom was very happy since she had been telling we had many things to buy but were to expensive. So winning these coupons really helped a lot. The same games will be there even during the Dussehra vacations. We can go there and win a few more games when you come.

Really missed you so much. I hope to see you soon. Please tell my regards to aunty and uncle. Love you.

Yours lovingly Shanti