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
Anastaziya [24]
2 years ago
15

Convert 625 mg to kg.

Chemistry
1 answer:
svetlana [45]2 years ago
4 0

Answer: 0.000625

Explanation:

If you don't know, one Milligram is equivalent to 0.000001 Kilograms. Hence, we'll multiply 625 by 0.000001.

With that being said, 625 times 0.000001 will equal to 0.000625.

Don't forget to add the units.

Milogram unit ⇒ mg

Kilogram unit ⇒ kg

Finally, your grand answer is 0.000625.

<em>Please comment down below for any questions about my answer.</em>

You might be interested in
A chemist prepares a solution of calcium bromide CaBr2 by measuring out 4.81μmol of calcium bromide into a 50.mL volumetric flas
Mariana [72]

Answer:

The concentration of the CaBr2 solution is 96 µmol/L

Explanation:

<u>Step 1:</u> Data given

Moles of Calciumbromide (CaBr2) = 4.81 µmol

Volume of the flask = 50.0 mL = 0.05 L

<u>Step 2:</u> Calculate the concentration of Calciumbromide

Concentration CaBr2 = moles CaBr2 / volume

Concentration CaBr2 = 4.81 µmol / 0.05 L

Concentration CaBr2 = 96.2 µmol /L = 96.2 µM

The concentration of the CaBr2 solution is 96 µmol/L

4 0
3 years ago
Which of these factors influences air temperature?
Ksju [112]

Answer:

D

Explanation:

3 0
3 years ago
2. Which equation represents a transmutation?
antiseptic1488 [7]

8935982560 plz contact me

5 0
2 years ago
Calculate the volume of a cube with the following measurements length= 5cm height =10 cm width=16 cm
Anna35 [415]

Answer:

800 cubic cm

Explanation:

3 0
2 years ago
12. A helium-filled weather balloon has a volume of 2.4 x 102 L at 99 kPa pressure and a
Luba_88 [7]

Answer:

The answer to your question is 8.74 g of He

Explanation:

Data

V = 2.4 x 10² L

P = 99 kPa

T = 0°C

mass = ?

Process

1.- Convert kPa to atm

P = 99 kPa = 99000 Pa

                   1 atm --------------- 101325 Pa

                    x       ---------------   99000 Pa

                   x = (99000 x 1) / 101325

                   x = 0.977 atm

2.- Convert temperature to °K

°K = 273 + 0

°K = 273

3.- Substitution

      PV = nRT

- Solve for n

      n = PV / RT

      n = (0.977)(2.4 x 10²) / (0.082)(273)

      n = 24.48 / 22.386

      n = 1.093 moles

4.- Calculate the grams of He

          8 g -------------------- 1 mol

           x    -------------------- 1.093 moles

           x = (1.093 x 8) / 1

           x = 8.74 g                      

6 0
3 years ago
Read 2 more answers
Other questions:
  • Please help, this homework is due soon and I keep getting stuck.
    9·2 answers
  • How does solar energy compare to wind energy and fossil fuels?
    13·1 answer
  • If an element has 12 protons and 17 neutrons, how many electrons must it have?
    5·2 answers
  • Determine how many moles of hydrogen are needed to produce 50 grams of ammonia.
    10·1 answer
  • In which cellular structure is food produced in plants
    15·1 answer
  • Is baking bread a chemical or physical change? a Chemical b Physical c Neither
    8·1 answer
  • Use Appendix E in the textbook. Which of the following substances can oxidize RuO42−(aq) to RuO4−(aq) under standard conditions?
    7·1 answer
  • Which term describes the reaction process in a fission reaction?
    10·2 answers
  • he atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown belo
    11·2 answers
  • PLEASE HELP ME !!!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!