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
garri49 [273]
3 years ago
8

A ringers solution for intravenous fluid replacement contains 155 mEq of Ca2+ per liter of solution. if a patient receives 1850

mL of Ringer’s Solution, how many moles of calcium ions were given?
Chemistry
1 answer:
Nonamiya [84]3 years ago
3 0
Milliequivalent is a unit that made from millimol unit multiplied by the valence of the atoms. Calcium has 2 valence electron so the mEq would be twice as much as the mol. The solution has 155meq/liter and the volume is 1850ml. Then, the amount of calcium in the solution should be:

1850ml * (155mEq/1000ml) / (2mEq/mmol)= 143.375mmol= 0.144 mol
You might be interested in
The National Environmental Policy Act was established in 1965. True or false
Mariana [72]
The answer to your question is false

5 0
3 years ago
Read 2 more answers
Did changing the concentration of the solid effect the change in temperature of the reaction?
wolverine [178]
I’m pretty sure it’s true
7 0
3 years ago
Read 2 more answers
A lever with a mechanical advantage greater then 1 is used to
love history [14]
<span>. increase distance , increase force.</span>
6 0
3 years ago
Read 2 more answers
Student carries out a titration to determine the concentration of a solution of
Nimfa-mama [501]

The concentration of the Nitric acid solution : 0.114 M

<h3>Further explanation  </h3>

Titration is a procedure for determining the concentration of a solution (analyte) by reacting with another solution whose known concentration (usually a standard solution) is called the titrant. Determination of the endpoint/equivalence point of the reaction can use indicators according to the appropriate pH range  

Titrations can be acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases  

Reaction

HNO₃ + NaOH → NaNO₃ + H₂O​

Concentration a standard solution  of sodium hydroxide :  0.0998 mol/dm³ , and the volume = 25 cm³

moles NaOH=

\tt mol=M\times V\\\\mol=0.0998\times 25\\\\mol=2.495~mlmoles

<em>From the equation, mol ratio HNO₃ : NaOH = 1 : 1, so mol HNO₃ = mol NaOH=</em><em>2.495 mlmoles</em>

<em></em>

The volume of HNO₃ = 21.8 cm³, so the concentration :

\tt M=\dfrac{n}{V}\\\\M=\dfrac{2.495}{21.8}\\\\M=0.114

7 0
3 years ago
Someone answer the limited regent...
OleMash [197]

Answer:

20 g Ag

General Formulas and Concepts:

<u>Chemistry - Stoichiometry</u>

  • Using Dimensional Analysis

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table

Explanation:

<u>Step 1: Define</u>

[RxN]   Cu (s) + AgNO₃ (aq) → CuNO₃ (aq) + Ag (s)

[Given]   10 g Cu

<u>Step 2: Identify Conversions</u>

[RxN]   1 mol Cu = 1 mol Ag

Molar Mass of Cu - 63.55 g/mol

Molar Mass of Ag - 197.87 g/mol

<u>Step 3: Stoichiometry</u>

<u />10 \ g \ Cu(\frac{1 \ mol \ Cu}{63.55 \ g \ Cu})(\frac{1 \ mol \ Ag}{1 \ mol \ Cu} )(\frac{197.87 \ g \ Ag}{1 \ mol \ Ag} ) = 16.974 g Ag

<u>Step 4: Check</u>

<em>We are given 1 sig fig. Follow sig fig rules and round.</em>

16.974 g Ag ≈ 20 g Ag

6 0
3 years ago
Other questions:
  • The Ksp of yttrium iodate, Y(IO3)3 , is 1.12×10−10 . Calculate the molar solubility, s , of this compound.
    14·1 answer
  • Why can't all mixtures be classified as solutions?
    15·1 answer
  • Water molecule are able to form hydrogen bonds with? A OXYGEN gas o2 molecules b any compound that is not soluble in water c com
    15·1 answer
  • Test to determine whether or not a hypothesis<br> is supported
    9·2 answers
  • What is the solubility in moles/liter for iron(III) hydroxide at 25 oC given a Ksp value of 2.0 x 10-39. Write using scientific
    15·2 answers
  • What is the solubility of 2 kilograms of potassium chloride (KCl) dissolved into 750 cm3 of water? A. 0.375g/dm3 B. 1500g/dm3 C.
    13·1 answer
  • What is a chemical change??
    6·1 answer
  • What's the answer ???
    13·1 answer
  • Hello, I would really appreciate it if you guys can answer the question below, it is for marks and I do not know the answer for
    10·1 answer
  • Sonar stands for “sound navigation and ranging.” What assumption was proved wrong after the invention of sonar?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!