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
Setler79 [48]
3 years ago
6

An over-the-counter multi-vitamin has 350 mg tablets that are 20% calcium by mass. How many tablets are required for you to take

a 0.35 g dose of calcium?
Chemistry
2 answers:
Marina86 [1]3 years ago
7 0
.2x350mg = 70mg which converts to .070g.
.35g/.070g = 5 tablets.
yan [13]3 years ago
7 0

Answer:

5  tablets are required for you to take a 0.35 g dose of calcium.

Explanation:

The amount of calcium required = 0.35 g

Percentage of calcium by mass in calcium carbonate = 20%

Total mass of 1 tablet of multi-vitamin =350 mg = 0.35 g

let the number of tablet of multi-vitamin be x

Total mass of tablets = x × 0.35

\%=\frac{\text{Mass of an element}}{\text{Total mass of tablets}}\times 100

20\%=\frac{0.35 g}{x\times 0.350 g}\times 100

x = 5

5  tablets are required for you to take a 0.35 g dose of calcium.

You might be interested in
Why does the light bulbs have to be part of the loop in order for it to be succesful?
alina1380 [7]
The light bulbs ave to be a part of the loop in order for it to be successful because it have to have wires to a circuit  breaker so you can see.


6 0
3 years ago
Need help with question 1.) I got something wrong but i don’t know hurry ASAP
lana [24]

Vinegar is an heterogeneous mixture

Explanation:

3 0
3 years ago
Which statements correctly describe light? (Select all that apply.)
Ainat [17]

Answer:

it says select all that apply hhh easy just select and apply the answer hhh

Explanation:

8 0
3 years ago
Read 2 more answers
Which indicator has to be used in order to get an emerald green color at a pH of 9?
Sphinxa [80]
I think it would be B maybe
8 0
3 years ago
What’s the density if the mass is 40.8g and the volume is 60mL?
luda_lava [24]

Answer:

We have the final answer as

<h2>0.68 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 40.8 g

volume = 60 mL

The density is

density =  \frac{40.8}{60}  \\

We have the final answer as

<h3>0.68 g/mL</h3>

Hope this helps you

8 0
3 years ago
Other questions:
  • A bar of gold is 5.0mm thick, 10.0cm long and 2.0cm wide. It has a mass of exactly 193.0g. What is the desity of gold?
    6·1 answer
  • The alkali metals all react with water. which is the most reactive metal?
    8·1 answer
  • How many traditional areas of study can chemistry be divided into
    9·1 answer
  • "Given a block of frozen salt water, how could you separate
    11·1 answer
  • According to Le Châtelier’s Principle, the amount of solid reactant or product present does not have an impact on the equilibriu
    9·1 answer
  • Which sample of water contains particles having the highest kinetic energy
    13·2 answers
  • What is the charge on an electron?<br> –1<br> 0<br> +1<br> +2
    13·2 answers
  • Which of the 3 molecules: Methane, Propane, Butane would release the most energy when combusted?
    5·1 answer
  • What are the similarities and differences between unicellular and multicellular organisms?
    13·1 answer
  • A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 16.84 nm. What is the total wi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!