Based on this information, what was the mass of the sample before and after heating? (Grams)

Q: iron reacts with water to produce iron (iii) oxide and hydrogen. if 42.63 grams of iron (iii) oxide…

A: Weight of iron(3)oxide = 42.63 gm

Q: In the laboratory, a student weighs out 7.174 grams of a hydrate and heats it in a crucible until it…

A:

Q: How would you know  the volume of the groundnut to the mass or weight of flour for coating the…

A: We will know the volume of the groundnut to the mass or weight of flour for coating the groundnut to…

Q: DETERMINE THE MASS OF A STEEL BEVERAGE CAN FROM 1970'S AND THE MASS OF MODERN A,UMINUM CAN. HOW MUCH…

A: Around 1970's mass of steel beverage cans used was around 42 gm  now a days we are using aluminium…

Q: 3.0x1025 03 molecules Express your answer to two significant figures and include the appropriate…

A:

Q: Incorrect Question 2 Heating to constant mass involves heating the salt until the mass after heating…

A: Heating to constant mass involved  heating the  same for the several minutes, weighting it and…

Q: Suppose you analyze a 36.8 g sample of bleach and determine that there are 2.33 g of sodium…

A:

Q: CCC Energy and Matter The charcoal that was burned in a grill left only a fine, light ash. The ash…

A: Charcoal burns and leaves light ash whose weight is less than charcoal. The reason for it is given…

Q: Question 18 A student performed an experiment to determine the percent water in a sample of food and…

A: Percent composition of a substance can be obtained from percent ratio of mass of given substance to…

Q: • Your friend wants to make money entrepreneurially • • • Idea: Sell Popsicles at Farmers Market Buy…

A: Step 1: Step 2: Step 3: Step 4:

Q: QUESTION: How much solute (lauric acid) do you need to add to the solvent wax (stearic acid) to make…

A: Suppose, x g of lauric acid is required to mix with the solvent wax stearic acid to make a 100 g…

Q: what as the weight percent of water in the hydrate before heating? Put answer in one decimal place.…

A: Mass percent or weight percent is defined as the total mass of the substance divided by total mass…

Q: Consider a 8.83 g sample of C3H6C3H6. How many molecules are in this sample? Report your answer with…

A:

Q: 49. (40a) When 75 kg of hydrazine reacts, how many grams of nitric acid can be formed? Enter the…

A: Here, we shall answer only the first sub-part of the question which is 40 (a):

Q: please show work

A: Mass of alum hydrate before heating = (mass of beaker and watch glass + mass of alum hydrate )…

Q: A small pin contains 0.013 mols of iron (Fe). How many atoms of iron are on the tip of the pin? SHOW…

A:

Q: A reaction produces sodium chloride fro 8 grams of sodium and 8 grams of diatomic chlorine. What is…

A: The balanced reaction taking place is  2 Na + Cl2 ----> 2 NaCl Hence we can say 1 mole of Cl2…

Q: Four pennies of exactly the same size are analyzed and found to have different % composition of…

A: composition defines the amount of copper present in per 100g of penny.

Q: What was the weight percent of water in the hydrate before heating?  Put answer in one decimal…

A: Weight percent of water in the hydrate before heating can be calculated using the given equation.

Q: how many mg does a 433 kg sample contain? Please answer in unit converstion form.

A: As we know, 1kg = 106 mg

Q: 3. The solubility product constant (Ksp) of iron (III) chloride is 1.7 x 106. Calculate the molar…

A: The solubility product ( Ksp ) a sparingly soluble salt is defined as the product of the molar…

Q: To how many significant figures can you report the mass of each solid sample? A) number of…

A: To determine the number of significant figures, apply these rules: Step 1: Non-zero digits are…

Q: What is the mass of 0.025 moles of aluminum sulfate, AI2(SO4)3?

A: We have to calculate the mass of 0.025 mole of aluminium sulfate.

Q: What was the weight percent of water in the hydrate before heating? Put answer in decimal place.…

A: To find the weight percent of water in the hydrate before heating, you can use the formula:Given:…

Q: Acetylene (C,H,) gas is often used in welding torches because of the very high heat produced when it…

A:

Q: What is the percent by mass of sulfur in SO1? Your Answer:

A: Introduction : We have to calculate the percent by mass of SO1.

Q: Please correct answer and don't use hend raiting

A: Given:Mass of C4H10 (butane) = 4.6 g                     (2 significant figures)Mass of O2 (oxygen)…

Q: 1. How many hydrogen atoms are in the compound (NH.).CO,?

A: This question belong to mole concept in physical chemistry. We have solved the problem by unitary…

Q: 3 62 2-butenel +265 If we start with 25.7g of butene and 22.2 g of oxygen, how many grams of water…

A:

Q: How many moles of Ca are there in 913 grams? Answer in decimal notation, without units, to 3…

A: • The values provided in the question are:-    i) Mass of Calcium = 913 g  ii) Molar mass of…

Q: Acetylene (CH,) gas is often used in welding torches because of the very high heat produced when it…

A: The balanced chemical equation for the combustion of acetylene can be shown as follows: C2H2 (g)  +…

Q: 4 A hydrogen peroxide molecule contains 2 hydrogen atoms and 2 oxygen atoms. This molecule is_____…

A: A monoatomic species is formed by a single atom. A diatomic molecule is formed by two atoms and a…

Q: What is the mass of 7.60 moles of magnesium chloride, MgCl₂? Express your answer with the…

A:

Q: 2. Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the…

A: Given:  The chemical formula is :  Fe3O4 sol a)   molar mass  =  3 Fe + 4 O =  (3 x 55.84)  +  (4 x…

Q: the moles of c t digits.

A:

Q: When you heat a popcorn, it pops because it loses water explosively. Assume a kernel of corn, with a…

A: Given: Mass of kernel of corn before heating = 0.136 g Mass of kernel of corn after heating (on…

Q: How many moles of SO2 are present in 49.7 grams SO2? Show work using dimensional analysis

A:

Q: Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water…

A: Moles of H2O = 0.090  Moles of O2 required = ?

Q: HOW MANY ASPRIN TABLETS CAN BE MADE FROM 100.0 G OF ASPIRIN IF EACH TABLET CONTAINS 5 GRAINS

A: In this question we need to calculate the number of tablets which can be made from the given amount.

Q: If 4.41 g of nitrogen react with 2.60 g of hydrogen to produce ammonia, what is the limiting…

A: Given that:  Nitrogen reacts with Hydrogen to give Ammonia The balanced chemical equation can be…

Q: QUESTION 8 You need 0.789 mol of salt (NaCI)? How many grams of the solid would you weigh? Use the…

A: In question 8, we have to find the mass of 0.789 mol of NaCl. In question 9, we have to calculate…

Q: Brass is a combination of copper and zinc in different percentages. What mass of copper is contained…

A: A question based on concentration terms that is to be accomplished.