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
Artyom0805 [142]
3 years ago
10

How many moles in 120 Calcium

Chemistry
1 answer:
almond37 [142]3 years ago
4 0
Molar mass Ca = 40.078 g/mol

Therefore:

1 mole Ca ---------- 40.078 g
? moles Ca --------- 120 g

120 x 1 / 40.078 => 2.994 moles
You might be interested in
A 400 ml sample of gas is heated from -20 c to 60
Viktor [21]
Using p1v1/t1=p2v2/t2
p1=50
p2=225
v1=400ml
v2=?
t1=-20=253k
t2=60=333k
50x400/253=225xv2/333
7.9=0.7xv2
v2=7.9/0.7
v2=11.3ml
6 0
3 years ago
Read 2 more answers
Post-Lab Questions
Svet_ta [14]

Answer:

1. not enough dye was added to the drink.

The wrong dye was added to the drink

the water in the drink is evaporating

2. Changing the compound changes the absorbance behavior.

3. Measure the absorbance for the same solution in different cuvette sizes and find the y-intercept.

Explanation:

When the beverage company adds dye to the drink, there should be standard quantity added to the drink so that the color of the drink remains constant. When too much dye is added to the drink, the color will get dark brown or black. When the color of drink get lighter than green this means dye is not added in required quantity.

7 0
2 years ago
What is the scientific name for weight?
katovenus [111]

Hello the term for weight is newton

hope this helped.

Cody

5 0
3 years ago
Read 2 more answers
Determine the total mass of ethanol produced when 279. Grams of glucose rescts completely to form ethanol and 132 grams of carbo
Sergio039 [100]
279 g * (1 mol/180.559g glucose) * (2 mol ethanol/1 mol glucose) * (46.068g ethanol/1mol) =

142 g ethanol produced
5 0
3 years ago
500.0 mL of a gas is collected at 745.0 mmHg. What will the<br> volume be at 760 mmHg?
Natalija [7]

Answer:

490 ml

Explanation:

5 0
2 years ago
Other questions:
  • Which of the following statements about tornadoes is false?
    14·2 answers
  • What mass of salt (nacl) should you add to 1.48 l of water in an ice cream maker to make a solution that freezes at -13.4 ∘c ? a
    12·2 answers
  • Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major isotope is Mg24, natural ab
    10·1 answer
  • Consider a cloudless day on which the sun shines down across the United States. If 2014 kJ of energy reaches a square meter( m 2
    6·1 answer
  • substances x and y are both nonpolar. if the volatility of x is higher than that of y, what is the best explanation?
    12·1 answer
  • Students set up the stream table apparatus seen here. They began their experimentation with trials to determine the
    12·1 answer
  • Help me, I’m bad a science.
    11·1 answer
  • What is the change in enthalpy when 180 g of water vapor condenses at 100°C? (AH, = 40.67 kJ/mol)
    6·1 answer
  • The dictionary from #2 falls off the table. How much kinetic energy does it have just before it hits the floor?
    14·1 answer
  • What is an allotrope?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!