All categories

2 years ago

Calculate the percent by mass of a solution made from 14 g nacl (the solute) and 61 g water

Chemistry

1 answer:

shtirl [24]2 years ago

5 0

The percent by mass of an answer made from 14 g NaCl (the solute) and 61 g water is 18.66%

14 g + 61 g =75.0 g - mass of the solution

mass % = (mass solute/ mass solution)*100% = (14/75.0)*100% =

= 0.186*100% =18.66%.

What is the percent by mass?

Mass percent is another method of expressing the composition of the solution mixture. It describes the amount of solute (grams) present in 100 gm of the solution.

To know more about percent by mass go to the given link :

brainly.com/question/20393858

You might be interested in

What are the terms that descripe these values for the element oxygen?

Serga [27]

Answer:

16 is the mass number. 8 is the atomic number.

5 0

2 years ago

According to Maslow's hierarchy of needs, the basic needs are what we call physiological or biological needs. The survival of th

Volgvan

Answer:

Explanation:

|ndeed, Psychologist Abraham Maslow's sought to describe hierarchy in which the average (or most) humans place their needs. In other words, he believes we as humans have basic needs which we long to satisfy.

On the ranking or hierarchy, according to Maslow the need humans satisfy first is their physiological need. Here's the full hierarchy:

Physiological Needs

↓

Safety Needs

↓

Love/Belonging Needs

↓

Esteem Needs

↓

Self-Actualization

3 0

2 years ago

Did I do this science worksheet correctly? Asking for a friend

grin007 [14]

Yes everything looks good to me

8 0

2 years ago

identify each pair of compounds as constitutional isomers, stereoisomers, identical molecules, or other.

Lostsunrise [7]

I don’t know this answer

5 0

2 years ago

when copper sulfide is partially roasted in air (reaction with o2), copper sulfite is formed first. subsequently, upon heating,

Lyrx [107]

The question is incomplete, complete question is:

When copper(I) sulfide is partially roasted in air (reaction with oxygen), copper(I) sulfite is formed first. subsequently, upon heating, the copper sulfite thermally decomposes to copper(I) oxide and sulfur dioxide. Write balanced chemical equations for these two reactions.

Answer:

The balanced chemical equations for these two reactions:

$2Cu_2S(s)+3O_2(g)\rightarrow 2Cu_2SO_3(s)$

$Cu_2SO_3(s)\overset{heat}\rightarrow Cu_2O(s)+SO_2(g)$

Explanation:

On partial roasting of copper sulfide in an air. The balanced chemical reaction is given as:

$2Cu_2S(s)+3O_2(g)\rightarrow 2Cu_2SO_3(s)$

On further heating of copper(I) sulfite it get decomposes into copper oxide and sulfur dioxide. The balanced chemical reaction is given as:

$Cu_2SO_3(s)\overset{heat}\rightarrow Cu_2O(s)+SO_2(g)$

5 0

3 years ago