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
Alecsey [184]
3 years ago
13

PLEASE HELP!! What is the percentage by mass of solution formed by dissolving 27.0 grams of HCl in 102.0 grams of water? 26.5% 2

0.9% 18.2% 16.7%
Chemistry
1 answer:
densk [106]3 years ago
7 0

The answer is 20.9%; you have to divide the solute by the total number of grams; thus divide 27/129 and get B)20.9%

You might be interested in
Do CO2 and h2o have the same geometry
Svetach [21]
No, they do not. Carbon dioxide has a linear geometry because the lone pair and bond pair repulsion cancels out; however, water has a bent structure because only the oxygen atom possesses a lone pair which brings the bonding electron pairs closer.
7 0
3 years ago
When you pull on a window shade,you exert what?
yulyashka [42]
Force... I hope this helped you
6 0
3 years ago
2. How many moles of sodium Na will react with 6 moles of sulfur S?
fredd [130]

Answer:

12 moles of Na

Explanation:

5 0
2 years ago
Your experiment requires 150 mL of 7.7 M NaOH. How many grams of NaOH will you need?
Elodia [21]
You have molarity and you have volume. Use the formula :
Molarity(M)= Moles(N)/Liter(L)            to get the solution. 
150 ml= .150 L
7.7 = N/.150
N=.1.155 moles of NaOH.
 And since you know the moles, use the molar mass to figure out the grams.
<span> (40g/mol NaOH) x (1.155mol) =  
46.2 g of NaOH.</span>
7 0
3 years ago
Which produces oxygen-18 when it undergoes beta decay? A. oxygen-17 B. oxygen-18 C. fluorine-17 D. fluorine-18
inna [77]

Answer:

Option D. fluorine-18

Explanation:

The attached photo gives the explanation.

In the attached photo, A zX represent the atom that will undergo beta decay to produce oxygen–18.

After the calculation, A zX was found to be fluorine–18.

3 0
3 years ago
Other questions:
  • In 100 grams of sweet peas there are 14.5 carbohydrates,5.7 grams of sugars,5.1 grams of dietary fiber, 5.4 grams of protein and
    14·1 answer
  • For a single component system, why do the allotropes stable at high temperatures have higher enthalpies than allotropes stable a
    6·1 answer
  • Which of the following is not an indication of a chemical change?
    6·1 answer
  • What's the functional group if ch3c2ch3oh​
    11·1 answer
  • How many grams of sugar must be dissolved in 150 ML of water to make a solution that has a concern traction of .6 g/ml
    13·1 answer
  • HCl + NaOH = H2O + NaCl<br> Explain what happened, the atoms ___.
    8·2 answers
  • What is a current?
    12·1 answer
  • What type of chemical bond holds the sulphur and fluorine atoms together in sulphur hexafluoride molecules?
    12·2 answers
  • New concept cars in the Detroit Auto Show feature engines that burn hydrogen gas in air to produce water vapor. Suppose that fue
    9·1 answer
  • when chlorine is added to acetylene tetrachloroethane is formed How many grams of tetrachloroethane are ade if 15 liters of chlo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!