1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nostrana [21]
3 years ago
8

How many grams of NaCl are needed to prepare 50.0 grams of 35.0% of salt solution?

Chemistry
1 answer:
nevsk [136]3 years ago
4 0

Answer:

17.5 g

Explanation:

Given data

  • Mass of solution to be prepared: 50.0 grams
  • Concentration of the salt solution: 35.0%

The concentration by mass of NaCl in the solution is 35.0%, that is, there are 35.0 grams of sodium chloride per 100 grams of solution. We will use this ratio to find the mass of sodium chloride required to prepare 50.0 grams of a 35.0% salt solution.

50.0gSolution \times \frac{35.0gNaCl}{100gSolution} = 17.5gNaCl

You might be interested in
A typical adult human body contains approximately 2.500 L of blood plasma. How many grams of blood plasma are in the typical adu
kirill115 [55]

Answer:

m=2.575g

Explanation:

Hello,

In this case, since the density is defined as the ratio of the mass and volume:

\rho =\frac{m}{V}

We can compute the mass of blood as follows:

m=\rho *V=1.03g/L*2.500L\\\\m=2.575g

Best regards.

7 0
2 years ago
What are the 7 methods of separating mixtures?​
Gennadij [26K]

Methods Of Separating Mixtures

Handpicking.

Threshing.

Winnowing.

Sieving.

Evaporation.

Distillation.

Filtration or Sedimentation.

Separating Funnel.

3 0
3 years ago
Read 2 more answers
X2o3 express you answer as a whole number
kobusy [5.1K]
 <span>2.40 - 1.68 =0.72 g of oxigen 
moles = 0.72/16 g/mol=0.045 

moles x = 1.68/ 55.9=0.03 

0.03/0.03 = 1 = x 
0.045 / 0.03 = 1.5 = O 

to get whole numbers multiply by 2 

x2O3 

X2O3 +3 CO = 2 X + 3 CO2</span>
4 0
3 years ago
Unless otherwise instructed, you may refer to the periodic table in the Chemistry: Problems and Solutions book for this question
Tom [10]
Answer: oxygen

There is the s,p,d and f blocks, from groups 1-2 that is the s block, 13-18 that’s the p block, 3-12 is the d block and the f would be lanthanide(#57-71) and actinide (#89-103).
8 0
2 years ago
O que é etnocentrismo​
Shtirlitz [24]

Answer:

yes and bla bla

........

4 0
2 years ago
Other questions:
  • Click in the answer box to activate the palette. Use the half-reaction method to balance the following equation in acidic soluti
    8·1 answer
  • _c h 3 c h 2 c o o h+ _0 2 -》 _h 2 o + co2 how many molecules of o2 are required for the complete combustion of 6 moles of propa
    9·1 answer
  • he solutions in the arms of a U-tube are separated at the bottom of the tube by a selectively permeable membrane. The membrane i
    10·1 answer
  • Alkanes are hydrocarbons containing only single bonds. Acyclic alkanes have carbon atoms arranged in chains, whereas cycloalkane
    7·1 answer
  • A sample of 14.5 g of sodium bicarbonate (NaHCO3) was dissolved in 100 ml of water in a coffee-cup calorimeter with no lid by th
    9·1 answer
  • Convert 30°C into kelvin
    7·1 answer
  • hydrogen chloride, hydrogen nitrate (v), sodium chloride, sodium hydroxide. Name a substance known as common salt​
    5·1 answer
  • Q3.What did you observe about the wavelengths and frequencies of the different colors of light?
    12·1 answer
  • Freshwater is distributed in both time and space
    11·1 answer
  • When carbon-containing compounds are burned in a limited amount of air, some CO(g) as well as CO₂(g) is produced. A gaseous prod
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!