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
quester [9]
2 years ago
11

How many grams are in 0.040 moles zirconium (Zr)?

Chemistry
2 answers:
sveticcg [70]2 years ago
8 0

Answer:

3.64896 grams Zr

Explanation:

Given: amount of moles of Zr: 0.040

Find: the amount of grams of Zr

1. Find molar mass of Zr

- after looking at the periodic table, you can tell it's 91.224 g/mol

2. Solve

(\frac{0.040 mol Zr}{1})( \frac{91.224 g Zr}{1 mol Zr})

- the mol units get cancelled out, and you're left with 0.040 x 91.224 g

3. Multiply that out: 3.64896 grams of zirconium

Anton [14]2 years ago
7 0

Answer:

91.224 gram

Explanation:

You might be interested in
How is the density of an object in kg/L related to its density in g/mL? (1 point)​
umka2103 [35]

Answer:

kg =1000g ml =1/1000 L

Explanation:

1000g/L=1g/1/1000L=1000g/L

The same

3 0
2 years ago
Which of the following is an example of a decomposition reaction? 1) H2 + O2 ----------→ H2O 2) MgO2 -------------→ Mg + O2 3) M
podryga [215]

Answer:

2) MgO ---→ Mg + O2

Explanation:

Chemical decomposition is defined as the breakdown or breaking of a single molecule or entity into two or more smaller fragments.

Chemical decomposition is usually regarded as the exact opposite of chemical synthesis. In most cases, the chemical reaction in which two or more products are formed from a single reactant is called a decomposition reaction.

4 0
2 years ago
there is an ice cream shop 6 blocks north of your hotel. how many minutes will it take to walk there and back
Allushta [10]

Answer:

This question is incomplete

Explanation:

This question is incomplete.

However, when all the required data are available, you can use the formula/steps below

Average speed/velocity (m/s) = distance (in metres) ÷ time (in seconds)

Time (in secs) = distance ÷ average speed/velocity

Kindly note that "blocks" is not a standard unit for distance measurement in science, hence the distance (since its a walking distance) must be in metres (or converted to metres if not in metres).

The distance in the formula is the distance from the hotel to the ice cream shop while the average speed is the distance covered per time as s/he walks to the ice cream shop and back. Hence, the answer gotten from the formula above will have to be multiplied by 2 (in order to get the time taken to walk to the ice cream shop and back) because the formula will only provide answer to one trip (time taken to walk to the shop).

After the multiplication mentioned above, the time in seconds should be converted to minutes by dividing the answer in seconds by 60

8 0
3 years ago
Help please I really need it. :(
stich3 [128]

Answer:

the second answer

Explanation:

7 0
2 years ago
You have 100. grams of potassium fluoride (KF). How many moles do you have? (1 mole KF = 58.09 g KF) *
alex41 [277]

Answer:

I think its 1.72 (:

Explanation:

7 0
2 years ago
Other questions:
  • How does a scientist critique another scientist’s conclusion?
    14·2 answers
  • methane and hydrogen sulfide form when hydrogen reacts with carbon disulfide. identify the excess reactant and calculate how muc
    11·1 answer
  • What type of extinguisher will extinguish a class a, b or c fire?
    5·1 answer
  • How is an atomic radius measured?
    11·1 answer
  • Calculate the percentage of a solution formed by dissolving 10g of glucose in 240g of water
    13·1 answer
  • Predict the moon phases
    6·1 answer
  • A mothball, composed of naphthalene (C10H8), has a mass of 1.98 g . How many naphthalene molecules does it contain?
    9·1 answer
  • A solution has a (oh-) = 8.6 × 10-5 the poh=, ph=, (h+)=
    14·1 answer
  • Electron configuration for iron?
    8·1 answer
  • Why an aspirin tablet works faster if it is crushed rather than swallowed whole?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!