⚗️ chemistry

1. **State the problem:** A chemist estimates the volume of a solution as 35 ml, but the actual volume is 33.4 ml. We need to find the absolute error and the percent error. 2. **Fo

1. The problem asks for the resulting percentage of salt concentration when 1.5L of a 30% salt solution is mixed with 0.75L of pure water. 2. The formula to find the new concentrat

1. **State the problem:** We have product M made by mixing chemicals X and Y in ratio 5:4.

1. **Problem statement:** Calculate the mass of one molecule of methane and the number of molecules in 1 gram of methane.

1. The problem is to calculate the oxidation number of an element in a compound. 2. The oxidation number (or state) is a measure of the degree of oxidation of an atom in a chemical

1. The problem asks: How do ionic compounds conduct electricity in aqueous solution? 2. Ionic compounds are made of positive and negative ions held together by ionic bonds in a sol

1. **State the problem:** Calculate the relative formula mass of methane (CH₄) and then find the percentage by mass of carbon in methane.

1. **Problem statement:** a) Calculate the relative formula mass of methane (CH$_4$).

1. **Problem statement:** We have a system of linear equations derived from the equilibrium condition $\frac{d[A_i]}{dt} = 0$ for all $i$. We want to solve for the concentrations $

1. **Problem statement:** We need to find how many grams of KNO3 can dissolve in 100 ml of water at 65°C and the solubility of KBr at 70°C based on the given solubility graph.

1. The problem states: "The air is Argon." This is a statement rather than a question, so there is no mathematical problem to solve here. 2. Argon is a noble gas and a component of

1. **State the problem:** Calculate the relative formula mass of carbon dioxide (CO₂). 2. **Formula used:** The relative formula mass is the sum of the relative atomic masses of al

1. **Stating the problem:** Calculate the relative molecular mass of carbon dioxide (CO₂) using the given atomic masses. 2. **Formula:** The relative molecular mass (M_r) of a comp

1. **State the problem:** Calculate the relative formula mass of sodium fluoride (NaF). 2. **Formula used:** The relative formula mass is the sum of the relative atomic masses of a

1. **Problem 1: Calculate the relative formula mass of sodium oxide, Na₂O.** 2. The relative formula mass (Mr) is the sum of the relative atomic masses (Ar) of all atoms in the for

1. **Problem Statement:** Calculate the relative formula mass of one molecule of nitrogen (N₂), fluorine (F₂), and carbon monoxide (CO). 2. **Formula Used:** The relative formula m

1. The problem is to calculate the relative formula mass of various molecules given their relative atomic masses ($A_r$). 2. The formula to calculate relative formula mass is:

1. The problem is to calculate the relative formula mass of various molecules and compounds given their relative atomic masses (A_r). 2. The formula to calculate relative formula m

1. **Problem Statement:** Determine if the given diatomic molecular orbital energy diagram displays the effect of s-p orbital mixing, identify the type of magnetism for the anion,

1. The problem asks for the gas produced when propanoic acid reacts with calcium trioxocarbonate(IV). 2. Calcium trioxocarbonate(IV) is another name for calcium carbonate, CaCO3.

1. The problem asks about the product of alkaline hydrolysis of an alkanoate. 2. Alkaline hydrolysis, also known as saponification, involves the reaction of an ester (alkanoate) wi