Cuántos gramos de cloruro de magnesio se pueden obtener si se hacen reaccionar 354,9g de cloruro de titanio (IV) y 285g de magnesio puro, Recuerde que como productos obtiene titanio y cloruro de magnesio.
a. escriba la ecuación balanceada
b. determine el reactivo limite
c. La cantidad de reactivo en exceso
Answer:
sorry I dont speak Spanish
The temperature of 170 g of a material decreases by 20.0⁰C when it loses 3050 J of heat. What is its specific heat
Answer:
0.897 J/g.⁰C
Explanation:
Given the following data:
m = 170 g (mass)
ΔT = 20.0⁰C (change in temperature)
q = 3050 J (amount of heat)
The amount of heat (q) is calculated as follows:
q = m x Cp x ΔT
Thus, we introduce the data in the mathematical expression to calculate the specific heat (Cp):
Cp = q/(m x ΔT) = 3050 J/(170 g x 20.0⁰C) = 0.897 J/g.⁰C
Consider the following balanced equation:
3 H2 + N2 --> 2 NH3
What volume of hydrogen gas will react in a perfect ratio
with 3 liters of nitrogen gas?
Answer:
[tex]from \: avogadros \: hypothesis \\ 1 \: mole \: of \: nitrogen \: reacts \: with \: 3 \: moles \: of \: hydrogen \\ 3 \: litres \: of \: nitrogen \: react \: with \: ( \frac{3 \times 3}{1} ) \\ 9 \: litres \: of \: hydrogen[/tex]
Isaiah rolls a tennis ball along the ground. Which of the following best explains what will happen if forces act on the ball?
Answer:
what are the following
Explanation:
what are the options?
Answer:
the ball will stop moving
Does anyone have any idea what this means lol
Answer:
29.42 Litres
Explanation:
The general/ideal gas equation is used to solve this question as follows:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K
According to the information provided in this question;
mass of nitrogen gas (N2) = 25g
Pressure = 0.785 atm
Temperature = 315K
Volume = ?
To calculate the number of moles (n) of N2, we use:
mole = mass/molar mass
Molar mass of N2 = 14(2) = 28g/mol
mole = 25/28
mole = 0.893mol
Using PV = nRT
V = nRT/P
V = (0.893 × 0.0821 × 315) ÷ 0.785
V = 23.09 ÷ 0.785
V = 29.42 Litres
What type of waves is produced by moving or vibrating objects
Answer:
Mechanical Sound Waves
A mechanical wave is a wave that depends on the oscillation of matter, meaning that it transfers energy through a medium to propagate. These waves require an initial energy input that then travels through the medium until the initial energy is effectively transferred. Examples of mechanical waves in nature include water waves, sound waves, seismic waves and internal water waves, which occur due to density differences in a body of water. There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves.
Why is sound a mechanical wave? Sound waves move through air by displacing air particles in a chain reaction. As one particle is displaced from its equilibrium position, it pushes or pulls on neighboring molecules, causing them to be displaced from their equilibrium. As particles continue to displace one another with mechanical vibrations, the disturbance is transported throughout the medium. These particle-to-particle, mechanical vibrations of sound conductance qualify sound waves as mechanical waves. Sound energy, or energy associated with the vibrations created by a vibrating source, requires a medium to travel, which makes sound energy a mechanical wave.
https://www.pasco.com/products/guides/sound-waves
this website tech you about wave, so learn it!!!
a raindrop has a mass of 0.050g. how many moles of water does a raindrop contain
Answer:
The raindrops of mass 0.050g has 0.0028 moles of water
R is the ideal gas constant. We know it is equal to 0.0821. What is the unit for R?
L•atm/mol K
L•atm/mol · °C
mL • atm/mol. K
L• kPa/mol - K
Answer:
A. L•atm/mol K
Explanation:
The ideal gas law equation is given as follows:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant
T = temperature (K)
As rightly stated in this question, R is the ideal gas constant, which can be different depending on the unit of the other components.
At STP;
V = 22.4L
P = 1 atm
T = 273 K
n = 1 mole
Hence, using PV = nRT
R = PV/nT
R = 1 × 22.4/1 × 273
R = 22.4/273
R = 0.08205
Approximately, R = 0.0821
With the units of P as atm, V as L, n as mol and T as K; R will be 0.0821 L•atm/mol K
How many grams are in 1.52 moles of PC13? (molar mass: 137.33 g/mol)
Speed is the rate of change of position expressed as _____ traveled per unit of time. A. direction B. meter C. displacement D. distance... Help!!!
Answer:
Distance
Explanation:
when you rub your sock on carpet then touch a door what happens? what are the charges doing?
pls help help help!
i give 20 points
pls
Answer:
His name is Harold
Explanation:
If you have 0.50 L of 0.45 M sodium bromide. How many grams of sodium bromide are present?
Answer:
23.175g
Explanation:
0.45 mole of NaBr is in 1 liter
? moles of NaBr is in 0.50 liter
0.50 × 0.45 = 0.225 of NaBr
1 mole of NaBr = 23 + 80 = 103g
0.225 moles of NaBr = ?
0.225 × 103 = 23.175g
What is the molarity of 5.60 mol of sodium carbonate in 1500 ml of solution?
Answer:
3.74 M
Explanation:
We know that molarity is moles divided by liters. The first thing to do here is convert your 1500 mL of solution to L. There's 1,000 mL in 1 L, so you need to divide 1500 by 1000:
1500 ÷ 1000 = 1.50
Now you can plug your values into the equation for molarity:
5.60 mol ÷ 1.50 L = 3.74 M
What is the ph of H2SO4?
Answer:
H2SO4 sulfuric acid 2.75
Explanation:
I hope it will help you
topic:
surface area
(multiple choice)
irrelevant answers will be reported
1) For the equation in the picture, write down the molecular formula for each of the following species in the reaction:
a) Acid
b) Base
c) Conjugate Acid
d) Conjugate Base
2) In your own words, what is a Bronsted-Lowry Acid?
Answer:
yo no ablo inglés amigos jjjj
GUYS PLEASE HELP ME
giving brainliest
2
Hope this helps :)
...............................
is visible light considered matter true or false
Answer:
Explanation:
false
A una mezcla de 300g, formada con 60% P/P de Hierro y 40% P/P de Arena, se le adicionan 135g de Cobre y 2,77g de Aluminio. ¿Cuál es la concentración final P/P de cada uno de los componentes?
Answer:
[tex]\%P/P_{hierro}=41.1\%\\\\\%P/P_{arena}=24.4\%\\\\\%P/P_{cobre}=30.8\%\\\\\%P/P_{aluminio}=0.6\%[/tex]
Explanation:
¡Hola!
En este caso, dado que estamos tratando con problem sobre porcentaje peso/peso de hierro, arena, cobre y aluminio, primero debemos calcular la masa inicial de estos dos primeros en la mezcla original de acuerdo con:
[tex]m_{hierro}=300g*0.60=180g\\\\m_{arena}=300*0.40=120g[/tex]
Ahora si podemos calcular la masa de la mezcla final como la suma de las masas de todos los constituyentes de la mezcla:
[tex]m_T=180g+120g+135g+2.77g=437.77g[/tex]
Finalmente, podemos calcular los porcentajes P/P como se muestra a continuación:
[tex]\%P/P_{hierro}=\frac{180g}{437.77g} *100\%=41.1\%\\\\\%P/P_{arena}=\frac{120g}{437.77g} *100\%=24.4\%\\\\\%P/P_{cobre}=\frac{135g}{437.77g} *100\%=30.8\%\\\\\%P/P_{aluminio}=\frac{g}{437.77g} *100\%=0.6\%[/tex]
¡Saludos!
I come in many different colors and I get bigger when I’m full. I will float away if you don’t tie me down and I will make a loud sound if I break. What am I?
i'm b.o.r.e.d
Answer:
BalloonExplanation:
It comes in different colors, it expands when it's "full". It floats away if it is not tied down and will make a loud noise if it pops (breaks).
What three temperature measurements Inust you make to calculate the specific heat of a sample using a calorimeter?
Answer:
Explanation:
Heat and temperature are two different but closely related concepts. Note that they have different units: temperature typically has units of degrees Celsius ( ∘ C ^\circ\text C ∘Cdegrees, start text, C, end text) or Kelvin ( Kstart text, K, end text), and heat has units of energy, Joules ( Jstart text, J, end text).
A generator can produce both _______________________ (DC), which flows in one direction,and AC current;large power plants produce ___________________.
Answer:
1. direct current. 2. electrical power
Explanation
i believe number 2 is right
How many grams of KCI can be dissolved in 63.5. g of water at 80
Answer:
35.8 g
Explanation:
Step 1: Given data
Mass of water: 63.5 g
Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C
Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.
63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl
How many oxygen atoms are in 75 g of so3
Explanation:
nso3=75/80 (80=Mr of so3)
n of o= 75x3/80
x of o= 75x3/80x6.02x10 powered by 23
then, the anwer is
[tex] {10}^{23} \times 16.93125[/tex]
sry if im wrong
There are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.
To calculate the number of oxygen atoms in 75 g of SO₃, we need to consider the molar mass of SO₃ and Avogadro's number.
The molar mass of SO₃ is calculated as follows:
Sulfur (S) = 32.07 g/mol
Oxygen (O) = 3 x 16.00 g/mol = 48.00 g/mol
Total molar mass of SO₍ = 32.07 g/mol + 48.00 g/mol = 80.07 g/mol
Next, we need to determine the number of moles of SO₃ in 75 g:
moles = mass / molar mass = 75 g / 80.07 g/mol ≈ 0.9369 mol
Since each molecule of SO₃ contains 3 oxygen atoms, we can calculate the number of oxygen atoms by multiplying the number of moles of SO₃ by Avogadro's number (6.022 x 10²³ atoms/mol) and then multiplying by 3:
Number of oxygen atoms = 0.9369 mol x 6.022 x 10²³ atoms/mol x 3 = 1.604 x 10²⁴ atoms
Therefore, there are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.
To learn more about atoms, here
https://brainly.com/question/1566330
#SPJ2
What is the measure of the indicated angle? 37∘ 53∘ 180∘ 127∘
Answer:
53∘
plz mark me as brainliest.
In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be diverted. In three to five sentences, construct a potential chain of consequences for what could happen when water is diverted from large bodies like lakes and rivers
Answer:
Decrease occur in the amount and flow of water bodies.
Explanation:
There is decrease in the amount and flow of water from water bodies such as rivers and lakes etc occur when the river is diverted from large water bodies because the water flows to the diverted sides and decrease occurs in the amount of water in the rivers and lakes. Those regions from where this river passes can also be negatively affected due to low amount of water they receives for their daily needs or for cultivation of crops so we can say that this diversion has adverse effect on other populations.
A team of scientists claim that they have discovered a new experimental
method for determining percent composition. Which of the following is
necessary for the claim to be considered valid?
A. The method must support the law of conservation of mass.
B. The percent compositions for any two compounds made from the
same elements must be the same.
C. Each atom must contribute the same mass to the compound.
D. All scientists using the new method must get the same results.
Answer:
Option C
Explanation:
The new method must support the law of definite proportions which means that if one mole of compound is distributed percentage wise then the sum of % share of each element must be equal to one mole of compound and this percentage distribution always remains the same in all conditions
Hence, option C is correct
What is the relationship of tissues to cells?
Tissues make cells.
Cells make up tissues.
Tissues are use for cell growth.
Cells help tissue grow.
1.
Events in which molten rock spews out of
the mantle as ash, lava, and gases
Answer:
Landslides, Volcanoes, Earthquakes, and Floods. A opening in the Earth's surface through which melted rock, gases, and ash escape. Events in which molten rock spews out from the mantle to the surface of Earth as ash, lava, and gases
Explanation:
