Battery capacity (kWh) The total battery capacity of an EV is measured in kilowatt-hours (kWh or kW-h). This rating tells you how much electricity can be stored in the battery pack. It’s a unit of energy just like calories and … Continue reading →

Now, the same team of researchers have sought to explain why the price has fallen so much. Publishing their results in Energy and Environmental Science, they say that research and development (R&D), particularly in chemistry and materials science, has been … Continue reading →

Domestic fridge power consumption is typically between 100 and 250 watts. Over a full day, a fridge records between 1 to 2 kilowatt-hours (kWh) of total energy usage, or about $150 per year per fridge. These figures can be validated … Continue reading →

Muriatic (hydrochloric) acid is the deathly enemy of stainless steel. For pickling, use nitric/HF. For passivation, use nitric or citric. For general cleaning/degreasing use a detergent or alkaline cleaner depending on the nature and severity of the surface contamination. What … Continue reading →

Battery capacity is measured in milliamps × hours (mAH). For example, if a battery has 250 mAH capacity and provides 2 mA average current to a load, in theory, the battery will last 125 hours. How do you calculate mAh? … Continue reading →

Traditionally, most knife companies use acid etching to enhance the visual aesthetic of their differential heat treatment, or to distinguish different layers of steel in a Damascus blade. It looks good, but provides little function. What does acid etching do … Continue reading →

With smaller 2500 mAh AA and 1000 mAh AAA batteries, we need to convert mAh to kWh (we’ll show you how to do that as well).Ah To kWh Table (Calculated kWh For 1-500 Ah 12V Batteries) 12V Battery Size (in … Continue reading →

Beer is very acidic, and it’s carbonated. Those two things are bad for heartburn. But, compared to other alcohol beverages, beer has a relatively lower alcohol content—and that’s good in the world of heartburn. Is there acid in beer? Beer … Continue reading →

2. ∴pH=-log(1×10-2)=2. What is the pH of 0.2 N HCl? Specifications Concentration or Composition (by Analyte or Components) 0.2N (N/5) Packaging Poly Bottle Traceability to NIST LOT 84L Potassium acid phthalate pH 0.10 Color Undesignated What is the pOH of … Continue reading →

In practice, any acid that yields a concentration of hydrogen ions with a molarity greater than 1 will be calculated to have a negative pH. For example, the pH of 12M HCl (hydrochloric acid) is calculated to be -log(12) = … Continue reading →

You can treat rusting metal with muriatic acid, and it will dissolve the rust, which is why steel pickling, a process that removes tarnish from steel prior to marketing, makes use of it. You’re right to have reservations about using … Continue reading →

If the container is open, HCl gas will escape and the acid solution will therefore become diluted over time. Some organic acids would also be affected in this way. Can hydrochloric acid expire? These alkaline and acidic chemicals like hydrochloric … Continue reading →

Battery acid usually has a concentration around 15%-35%, although its strength can be as high as 50%. Any concentration of sulfuric acid in lead-acid batteries is highly corrosive. Improperly handling this chemical may lead to permanent blindness, severe burns, internal … Continue reading →

Alkaline batteries contain zinc (Zn) and manganese dioxide (MnO2) (Health codes 1), which is a cumulative neurotoxin and can be toxic in higher concentrations. However, compared to other battery types, the toxicity of alkaline batteries is moderate. Are alkaline batteries … Continue reading →

Why is Mountain Dew Unhealthy? In one 12-ounce can, Mountain Dew has 12 teaspoons of sugar and a pH of 3.3 – this is very acidic. Battery acid has a pH of 1.1, in comparison. The citric acid in Mountain … Continue reading →